it: Risultati finali della elezione regionale "Avers", 14 giugno 2026, Graubünden - Grischun - Grigioni, suddivisi per municipalit e candidati.

fr: Résultats finaux de l'élection régionale "Avers", 14 juin 2026, Graubünden - Grischun - Grigioni, répartis par municipalités et par candidats.

rm: Resultats finals da l'elecziun regiunala "Avras", 14 da zercladur 2026, Graubünden - Grischun - Grigioni, resultats da tut las candidatas e da tut ils candidats tenor vischnancas.

de: Schlussresultate der regionalen Wahl "Avers", 14. Juni 2026, Graubünden - Grischun - Grigioni, aufgeschlüsselt nach Kandidaten und Gemeinden.

it: Avers

fr: Avers

rm: Avras

de: Avers

de: wahl regional-regionlabelgr

fr: election regional-regionlabelgr

it: elezione regionale-regionlabelgr

fr: La Chancellerie d’État fournit des données publiques librement accessibles triées sur le volet, qui proviennent du Parlement, du gouvernement et de l’administration et qui portent notamment sur les votations et les élections.

it: La Cancelleria fornisce dati selezionati dai settori Parlamento, Governo e Amministrazione, concernenti in particolare votazioni ed elezioni, come Open Government Data.

de: Standeskanzlei Graubünden


$oid: OBSOLETE

it: Risultati finali della elezione regionale "Alvaschein", 14 giugno 2026, Graubünden - Grischun - Grigioni, suddivisi per municipalit e candidati.

fr: Résultats finaux de l'élection régionale "Alvaschein", 14 juin 2026, Graubünden - Grischun - Grigioni, répartis par municipalités et par candidats.

rm: Resultats finals da l'elecziun regiunala "Alvaschagn", 14 da zercladur 2026, Graubünden - Grischun - Grigioni, resultats da tut las candidatas e da tut ils candidats tenor vischnancas.

de: Schlussresultate der regionalen Wahl "Alvaschein", 14. Juni 2026, Graubünden - Grischun - Grigioni, aufgeschlüsselt nach Kandidaten und Gemeinden.

it: Alvaschein

fr: Alvaschein

rm: Alvaschagn

de: Alvaschein

standeskanzlei-graubuenden

approval_status: approved

de: Die Standeskanzlei liefert ausgewählte Open Government Daten aus den Bereichen Parlament, Regierung und Verwaltung, insbesondere zu Abstimmungen und Wahlen.

en: The State Chancellery provides selected open government data from parliament, government and administration, particularly on votes and elections.

en: State Chancellery of Grisons

fr: Chancellerie d’État des Grisons

it: Cancelleria dello Stato dei Grigioni

political_level: canton

state: active

type: organization

kanton-graubuenden

capacity: public

de: Descrizione del formato

en: Descrizione del formato

fr: Descrizione del formato

it: Descrizione del formato

de: Description du format

en: Description du format

fr: Description du format

it: Description du format

de: Descripziun dal format

en: Descripziun dal format

fr: Descripziun dal format

it: Descripziun dal format

de: Formatbeschreibung

en: Formatbeschreibung

fr: Formatbeschreibung

it: Formatbeschreibung

type: dataset

key: guid

key: uri

value: GR-Kt - Standeskanzlei - DCAT Harvester

gove

de: Regierung und öffentlicher Sektor

en: Government and public sector

fr: Gouvernement et secteur public

it: Governo e settore pubblico

format: CSV

identifier: csv

media_type: text/csv

format: JSON

identifier: json

media_type: application/json

election

display_name: election

elecziun

display_name: elecziun

elezione

display_name: elezione

plaun-regiunal-regionlabelgr

display_name: plaun-regiunal-regionlabelgr

regional-regionlabelgr

display_name: regional-regionlabelgr

regionale-regionlabelgr

display_name: regionale-regionlabelgr

wahl

display_name: wahl


it: Risultati finali della elezione regionale "Bregaglia", 14 giugno 2026, Graubünden - Grischun - Grigioni, suddivisi per municipalit e candidati.

fr: Résultats finaux de l'élection régionale "Bregaglia", 14 juin 2026, Graubünden - Grischun - Grigioni, répartis par municipalités et par candidats.

rm: Resultats finals da l'elecziun regiunala "Bregaglia", 14 da zercladur 2026, Graubünden - Grischun - Grigioni, resultats da tut las candidatas e da tut ils candidats tenor vischnancas.

de: Schlussresultate der regionalen Wahl "Bregaglia", 14. Juni 2026, Graubünden - Grischun - Grigioni, aufgeschlüsselt nach Kandidaten und Gemeinden.

it: Bregaglia

fr: Bregaglia

rm: Bregaglia

de: Bregaglia


it: Risultati finali della elezione cantonale "Elezioni del Governo 2026", 14 giugno 2026, Graubünden - Grischun - Grigioni, suddivisi per municipalit e candidati.

fr: Résultats finaux de l'élection cantonale "Regierungswahlen 2026", 14 juin 2026, Graubünden - Grischun - Grigioni, répartis par municipalités et par candidats.

rm: Resultats finals da l'elecziun chantunala "Elecziuns da la Regenza 2026", 14 da zercladur 2026, Graubünden - Grischun - Grigioni, resultats da tut las candidatas e da tut ils candidats tenor vischnancas.

de: Schlussresultate der kantonalen Wahl "Regierungswahlen 2026", 14. Juni 2026, Graubünden - Grischun - Grigioni, aufgeschlüsselt nach Kandidaten und Gemeinden.

it: Elezioni del Governo 2026

fr: Regierungswahlen 2026

rm: Elecziuns da la Regenza 2026

de: Regierungswahlen 2026

de: wahl kantonal

fr: election cantonal

it: elezione cantonale

cantonal

display_name: cantonal

cantonale

display_name: cantonale

kantonal

display_name: kantonal

plaun-chantunal

display_name: plaun-chantunal


verurteilungen-von-minderjahrigen

de:
Anzahl Verurteilungen von minderjährigen Personen nach Gesetzesverstoss im Kanton Zug,  1999 bis 2025.

Da sich Prozesse über mehrere Jahre hinziehen können, ist es möglich, dass sich die Anzahl Verurteilungen pro Jahr nachträglich verändert.

(QUELLE: Bundesamt für Statistik, Jugendstrafurteilsstatistik)

de: Verurteilungen von Minderjährigen

kanton-zug

de:
Hier veröffentlicht das Team von Open Data Zug von der kantonalen Fachstelle für Daten und Statistik schrittweise offene Behördendaten der kantonalen Verwaltung.

Weitere Informationen unter https://zg.ch/opendata

de: Kanton Zug

en: Canton of Zug

fr: Canton de Zoug

it: Cantone di Zugo

de: Fachstelle für Daten und Statistik des Kantons Zug

title_for_slug: verurteilungen-von-minderjahrigen

value: DCAT Harvester Kt. ZG

just

de: Justiz, Rechtssystem und öffentliche Sicherheit

en: Justice, legal system and public safety

fr: Justice, système juridique et sécurité publique

it: Giustizia, sistema giuridico e sicurezza pubblica

kriminalitat

display_name: kriminalitat


de:
Anzahl neu gegründete Unternehmen im Kanton Zug, nach Wirtschaftssektor, Rechtsform und Gemeinden, 2013 bis 2023.

Nur wirtschaftlich aktive Unternehmen, die während mindestens 20 Wochenstunden eine produktive Tätigkeit ausüben, sind enthalten. Die Zahlen unterscheiden sich deshalb von den Neueintragungen im Handelsregister. Zur Landwirtschaft werden in der Neugründungsstatistik des Bundes keine Daten veröffentlicht.

(QUELLE: Bundesamt für Statistik, UDEMO)

de: Firmenneugründungen

econ

de: Wirtschaft und Finanzen

en: Economy and finance

fr: Économie et finances

it: Economia e finanze

de: Firmenneugründungen nach Rechtsform

de: Firmenneugründungen nach Gemeinde

unternehmen

display_name: unternehmen


de:
Entwicklung der höheren Berufsbildung: Bildungsabschlüsse, 1999 bis 2025:

- Diplome der höheren Fachschulen
- Eidgenössische Diplome
- Eidgenössischer Fachausweis
- Diplome der nicht auf Bundesebene reglementierten höheren Berufsbildung

Bei Diplomen der höheren Fachschulen und Diplomen der nicht auf Bundesebene reglementierten höheren Berufsbildung gilt das Schulstandortsprinzip, bei Eidgenössischen Diplomen und Eidgenössischen Fachausweisen gilt das Wohnortsprinzip.

Mehr zur Methodik: siehe Landing Page.

(QUELLE: Bundesamt für Statistik, Bildungsabschlüsse (Sekundarstufe II und Höhere Berufsbildung))

educ

de: Bildung, Kultur und Sport

en: Education, culture and sport

fr: Éducation, culture et sport

it: Istruzione, cultura e sport

fachausweis

display_name: fachausweis

hohere-fachschulen

display_name: hohere-fachschulen


neu-erstellte-wohnungen-nach-gemeinde

de:
Anzahl neu erstellte Wohnungen nach Anzahl Zimmer in den Zuger Gemeinden, 1995 bis 2024.

2012 wurde die Methodik der Erhebung der Bau- und Wohnbaustatistik verändert. Die Zahlen vor und nach dem Bruch der Zeitreihe sind nur bedingt vergleichbar.

(QUELLE: Bundesamt für Statistik, Bau- und Wohnbaustatistik)

title_for_slug: neu-erstellte-wohnungen-nach-gemeinde

soci

de: Bevölkerung und Gesellschaft

en: Population and society

fr: Population et société

it: Popolazione e società

de: Neu erstellte Wohnungen nach Anzahl Zimmer bis 2011

de: Neu erstellte Wohnungen nach Anzahl Zimmer ab 2012

wohnungsbau

display_name: wohnungsbau


neu-erstellte-wohnungen-nach-gebaudetyp

de:
Anzahl neu erstellte Wohnungen nach Gebäudetyp in den Zuger Gemeinden, 1995 bis 2024.

2012 wurde die Methodik der Erhebung der Bau- und Wohnbaustatistik verändert. Die Zahlen vor und nach dem Bruch der Zeitreihe sind nur bedingt vergleichbar.

(QUELLE: Bundesamt für Statistik, Bau- und Wohnbaustatistik)

de: Neu erstellte Wohnungen nach Gebäudetyp

de: einfamilienhaus mehrfamilienhaus

title_for_slug: neu-erstellte-wohnungen-nach-gebaudetyp

de: Neu erstellte Wohnungen nach Gebäudetyp bis 2011

de: Neu erstellte Wohnungen nach Gebäudetyp ab 2012

einfamilienhaus

display_name: einfamilienhaus

mehrfamilienhaus

display_name: mehrfamilienhaus


bauinvestitionen

de:
Bauinvestitionen in CHF, öffentliche und private Auftraggeber, 1994 bis 2024.

Bauinvestitionen umfassen Neubauten, Umbauten sowie Erweiterungsbauten.

(QUELLE: Bundesamt für Statistik, Bau- und Wohnbaustatistik)

de: Bauinvestitionen

de: infrastruktur bauwesen

kanton-zug

de:
Hier veröffentlicht das Team von Open Data Zug von der kantonalen Fachstelle für Daten und Statistik schrittweise offene Behördendaten der kantonalen Verwaltung.

Weitere Informationen unter https://zg.ch/opendata

de: Kanton Zug

de: Fachstelle für Daten und Statistik des Kantons Zug

title_for_slug: bauinvestitionen

de: Bauinvestitionen privat

de: Bauinvestitionen öffentlich

bauwesen

display_name: bauwesen

infrastruktur

display_name: infrastruktur


bauinvestitionen-nach-typ-des-bauwerks

de:
Bauinvestitionen, öffentliche und private Auftraggeber, in CHF, 1994 bis 2024.

Bauinvestitionen  umfassen Neubauten, Umbauten und Erweiterungsbauten.

(QUELLE: Bundesamt für Statistik, Bau- und Wohnbaustatistik)

de: Bauinvestitionen nach Typ des Bauwerks

title_for_slug: bauinvestitionen-nach-typ-des-bauwerks

de: Bauinvestitonen privat

de: Bauinvestitonen öffentlich


de:
Jährlicher Bestand an Strassenfahrzeugen, 1990 bis 2025, aufgeschlüsselt nach
- Personenwagen
- Personentransportfahrzeuge
- Sachtransportfahrzeuge
- Landwirtschaftsfahrzeuge
- Motorräder
- Anhänger

Ab dem Referenzjahr 2018 (Einführung IVZ-Fahrzeuge) wurde der Kanton gemäss den Angaben auf dem Kontrollschild bestimmt. In den Jahren bis und mit 2017 basierte die Kantonszuordnung dagegen auf der Halteradresse. Die Vergleichbarkeit der Kantonsdaten ab 2018 mit denen der Vorjahre ist daher eingeschränkt.

(QUELLE: Bundesamt für Statistik, Strassenfahrzeugbestand (MFZ))

de: Bestand Strassenfahrzeuge nach Fahrzeuggruppe

de: verkehr mobilitat miv fahrzeuge

tran

de: Verkehr

en: Transport

fr: Transports

it: Trasporti

de: Fahrzeugbestand

fahrzeuge

display_name: fahrzeuge

miv

display_name: miv

mobilitat

display_name: mobilitat

verkehr

display_name: verkehr


bestand-motorfahrrader

de:
Jährlicher Bestand an Motorfahrrädern (seit 1990) und S-Pedelecs* (seit 2014) im Kanton Zug , 1990 bis 2025.

Während der Datensatz ursprünglich primär klassische Mofas enthielt, werden heute auch E-Roller zu den Motorfahrrädern gezählt.

* S-Pedelec: E-Bike mit Unterstützung bis max. 45 km/h

(QUELLE: Bundesamt für Statistik, Strassenfahrzeugbestand MFZ, Motorfahrraderhebung)

de: Bestand Motorfahrräder

de: verkehr motorfahrrad ebike mobilitat miv fahrzeuge pedelec

title_for_slug: bestand-motorfahrrader

de: Motorfahrräder seit 1990

de: Bestand Motorfahrräder API

ebike

display_name: ebike

motorfahrrad

display_name: motorfahrrad

pedelec

display_name: pedelec


haltestelle-perron

de: The platform is the part of the stop that is raised up from the railway tracks. It is used by passengers boarding, alighting from or waiting for a train. Platforms can be divided into sectors.This data set contains the structural length of the platforms. This can differ from the effective useful length on which passengers can board and alight.<

de: Stop: platform length (body)

de: infrastructure station

schweizerische-bundesbahnen-sbb

fr:
Les CFF sont l’un des piliers d’une mobilité durable en Suisse. Chaque jour, les CFF acheminent 1,18 million de voyageurs et 210 000 tonnes de marchandises, de manière ponctuelle et respectueuse de l’environnement.

Le chemin de fer crée des liens à travers toute la Suisse, par-delà les frontières linguistiques, culturelles et politiques. Du point de vue économique et social, il contribue ainsi à la qualité de vie et à la compétitivité de notre pays. Mais les CFF ne sont pas qu’une entreprise de chemin de fer moderne et performante. En leur qualité d’employeur, de commanditaire, de propriétaire et de gérant d’immeubles, ils sont responsables de la Suisse, de ses régions et de l’environnement.

de:
Die SBB ist das Rückgrat einer nachhaltigen Mobilität in der Schweiz. Täglich sind 1,18 Millionen Reisende und 210'000 Tonnen Güter mit der SBB sicher, pünktlich und umweltfreundlich unterwegs.

Die Eisenbahn verbindet die Schweiz über alle sprachlichen, kulturellen und politischen Grenzen hinweg und leistet in wirtschaftlicher und gesellschaftlicher Hinsicht einen überaus wertvollen Beitrag an die Lebensqualität und Wettbewerbsfähigkeit unseres Landes. Die SBB ist aber weit mehr als ein modernes und leistungsfähiges Bahnunternehmen. Auch als Arbeits- und Auftraggeberin sowie als Immobilienbesitzerin und ‑bewirtschafterin übernimmt sie Verantwortung für die Schweiz, ihre Regionen und die Umwelt.

en:
SBB is the backbone of sustainable mobility in Switzerland. Every day, it safely transports 1.18 million passengers and 210,000 tonnes of freight on time and in an environmentally friendly manner.

The railway transcends all linguistic, cultural and political boundaries to bring Switzerland together, and in economic and social terms, it makes a vital contribution to the quality of life and competitiveness of our country. However, SBB is much more than just a modern, efficient railway company. As an employer and contractor, a property owner and a real estate manager, SBB takes responsibility for Switzerland, its regions and the environment.

it:
Le FFS assumono la loro responsabilità.

Consigliare ad altri

Condividere

Le FFS sono la colonna portante della mobilità sostenibile in Svizzera. Ogni giorno 1,18 milioni di viaggiatori e quasi 210 000 tonnellate di merci viaggiano con le FFS in modo sicuro, puntuale e rispettoso dell'ambiente.

La ferrovia unisce la Svizzera oltre i confini linguistici, culturali e politici e dal punto di vista economico e sociale assicura un contributo oltremodo prezioso alla qualità di vita e alla competitività del nostro Paese. Le FFS tuttavia sono ben più di un'impresa ferroviaria moderna e altamente performante. Esse assumono la loro responsalibità per la Svizzera, le sue regioni e l'ambiente anche come datore di lavoro, di committenti, così come di proprietarie e amministratrici di fondi e di immobili.

de: Schweizerische Bundesbahnen SBB

en: Swiss Federal Railways SBB

fr: Chemins de fer fédéraux suisses CFF

it: Ferrovie federali svizzere FFS

political_level: other

de: schweizerische-bundesbahnen-sbb

title_for_slug: haltestelle-perron

value: SBB - DCAT Harvester

de: Stop: platform length (body) (csv)

de: csv

de: Stop: platform length (body) (json)

de: json

de: Stop: platform length (body) (fgb)

de: fgb

format: OCTET

de: Stop: platform length (body) (geojson)

de: geojson

de: Stop: platform length (body) (gpx)

de: gpx

format: GPX

de: Stop: platform length (body) (jsonl)

de: jsonl

de: Stop: platform length (body) (kml)

de: kml

format: KML

de: Stop: platform length (body) (ov2)

format: TXT

media_type: text/plain

de: Stop: platform length (body) (parquet)

de: parquet

format: PARQUET

de: Stop: platform length (body) (rdfxml)

de: rdfxml

format: RDF XML

media_type: application/rdf+xml

de: Stop: platform length (body) (jsonld)

de: jsonld

format: JSON-LD


en:
Double hydroxide perovskites with magnetic transition-metal ions were recently identified as a unique class of materials that combine magnetic frustration with correlated proton disorder - a prerequisite for quantum-disordered fluctuating magnetic ground states resembling spin liquids. Here we present the results of muon spin relaxation (muSR) measurements carried out on fully deuterated samples of the double hydroxyperovskites CuSn(OH)6 (S=1/2) and MnSn(OH)6 (S=5/2) over the temperature range 0.053-50 K. The absence of any long-range magnetic order is confirmed down to 0.053 K. We observe no oscillations of the muon asymmetry down to the lowest temperature. The muon relaxation rates show a continuous increase with decreasing temperature, indicating persistent spin fluctuations in both compounds. Spin correlations are consistent with homogeneous spin dynamics. These observations reinforce the assertion that both compounds have a quantum-dynamic magnetic ground state that is consistent with a spin-liquid-like phase stabilized by proton disorder.
This dataset contains the corresponding muon spin spectroscopy raw time histograms, measured on CuSn(OD)6 and MnSn(OD)6.

en: Dataset: Spin-liquid-like ground states in the double hydroxyperovskites CuSn(OD)6 and MnSn(OD)6 evidenced by muSR spectroscopy

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.

en: PSI Data Catalog

de: PSI Data Catalog

fr: PSI Data Catalog

it: PSI Data Catalog

de: PSI Open Data Provider

value: DCAT Harvester SciCat

envi

de: Umwelt

en: Environment

fr: Environnement

it: Ambiente

flame

display_name: flame

smus

display_name: smus


en: This repository contain the experimental data for  the magnetic orders and excitations of the distorted kagome intermetallic magnet TmAgGe published in Phys. Rev. B 107, 224419 (2023). Single crystal diffraction and inelastic neutron diffraction was carried out on the Zebra and CAMEA beamlines at the Paul Scherrer Institut.

en: Magnetic ground state and perturbations of the distorted kagome Ising metal TmAgGe

en: magnetic-structure sinq tmagge zebra magnetic-excitations camea

camea

display_name: camea

magnetic-excitations

display_name: magnetic-excitations

magnetic-structure

display_name: magnetic-structure

sinq

display_name: sinq

tmagge

display_name: tmagge

zebra

display_name: zebra


en: Historical motion-picture films can become brittle, warped, shrunken, or fused, rendering them unreadable by conventional scanners because they can no longer be safely unrolled or transported under tension. X-ray tomography has already transformed the study of fragile cultural artifacts, including rolled medieval scrolls and the Herculaneum papyri. Similarly, we intend to measure rolled black and white motion-picture film by exploiting the strong X-ray absorption of the silver image layer at the TOMCAT beamline to investigate feasibility. Synchrotron hard X-ray tomography is attractive because it combines high flux, a parallel beam, and phase sensitivity. This enables fast scans with high signal-to-noise ratio, while phase contrast can enhance film boundaries and residual emulsion structures.

en: Back to light: Resurrecting lost film rolls using X-ray tomography


en: The experiment aims at visualizing with high resolution stacking faults in InSb micropillars that were deformed in a microcompression experiment. The chosen method is ptychographic topography, a new method recently developed at the cSAXS beam line.

en: Visualization of stacking faults in InSb micropillars by ptychographic topography


en:
The data is generated as part of the PhD thesis funded by the Swiss National Science Foundation (SNSF) under contract number 200021_159936. Following datasets are contained:

Halo quantification in PSI Ring cyclotron dependent on number of macro particles
-- Benchmark of AMR solver run on CPUs and GPUs with Trilinos master
-- Optimization of PSI Ring cyclotron septum
-- Septum study in PSI Ring cyclotron;

Additional datasets of the PhD thesis, which are used for journal publications, are:

AMR Solver data (https://doi.org/10.16907/f1285417-f190-4563-a8ee-04ebd9246a21)
-- Data of turn pattern matching between measurement and simulation of the PSI Ring Cyclotron (https://doi.org/10.16907/00b95267-8b8b-48a7-8de6-8da6b9b7bb7d)
-- Data of of a global sensitivity study of the PSI Injector 2, PSI Ring Cyclotron, IsoDAR and AWA RF gun (https://doi.org/10.16907/fd7d6880-7a0f-4b52-942d-35e23b77d0dc)

en: Data of PhD thesis "Precise Simulations of Multibunches in High Intensity Cyclotrons"


en: In the associated article to these datasets, we describe a new genus and species of an extinct magnoliid flower based on coalified fossils extracted from the Early Cretaceous Catefica mesofossil flora of Portugal. Internal structures of the fossils were investigated using synchrotron radiation X-ray tomographic microscopy at the TOMCAT Beamline, Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland. Phylogenetic analyses using external and internal features indicate relationship to Canellales and Magnoliales.

en: Synchrotron radiation X-ray tomographic microscopy datasets for the Early Cretaceous flower Catanthus dolichostemon E.M.Friis, P.R.Crane & K.R.Pedersen from Portugal


en: In the associated article to these datasets, we describe three new genera, Atlantocarpus E.M.Friis, K.R.Pedersen & P.R.Crane, Lambertiflora E.M.Friis, K.R.Pedersen & P.R.Crane and Mugideiriflora E.M.Friis, K.R.Pedersen & P.R.Crane from the Early Cretaceous of eastern North America and Portugal. Internal structures of the fossils were investigated using synchrotron radiation X-ray tomographic microscopy at the TOMCAT Beamline, Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland. All three genera are characterized by their multiparted and apocarpous gynoecium. Phylogenetic analyses using external and internal features indicate relationship to early diverging angiosperms and the fossils add to the growing evidence of extensive extinctions early in the history of angiosperms.

en: Synchrotron radiation X-ray tomographic microscopy datasets for Atlantocarpus, Lambertiflora and Mugideiriflora from the Early Cretaceous of eastern North America and Portugal


en: In the related publication, we introduce a new application of time-resolved X-ray tomography (XRT) to imaging of the washcoating process in catalytic monolith filters with a honeycomb structure (DPF, GPF). The method is applied to several alumina washcoats with different particle size distributions deposited on a cordierite substrate. The results bring new insights into the drying dynamics of the porous filter wall as well as the on-wall catalyst layer, including the process of layer shrinking and cracking. The XRT results are supplemented by cross-section scanning electron microscopy images and mercury intrusion porosimetry of the final structures. In addition to the statistical analysis of the washcoat distribution, the impact of the washcoat structure on filter pressure loss is determined by  experiments.

en: Washcoating of catalytic particulate filters studied by time-resolved X ray tomography


en: In the related publication to these data sets, we explore the flow dynamics for two-phase flow in a porous medium (a bioclastic carbonate rock). We use state-of-the-art synchrotron X-ray tomography to capture the fluid dynamics within the pore space, with a scan time of 1 second and a temporal resolution (scan repetition rate) of 2 s. The rock sample was initially saturated with brine (DI water doped with 15%wt. KI) before brine and nitrogen gas were injected simultaneously. As the gas establishes a path through the pore space, the flow dynamics are transient. Eventually, an equilibrium is established, where the gas saturation oscillates about a constant mean value; this is referred to as steady state. There are 5 data sets, 3 of which capture the unsteady state dynamics, and 2 of which capture the steady state dynamics. The images were captured with a voxel size of 2.75 µm3. In these data sets we observe that the pore scale dynamics evolve as the macroscopic flow transitions from unsteady state to steady state. We observe that the saturation of the gas plateaus out before the differential pressure across the core. This suggests that gas phase is more mobile during unsteady state.

en: Real-Time Imaging Reveals Distinct Pore-Scale Dynamics During Transient and Equilibrium Subsurface Multiphase Flow

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.

en: PSI Data Catalog


en: In the publication associated with this data collection, we present a methodological framework suitable for reconstruction of the whole mouse brain cerebral microvasculature by synchrotron radiation X-ray tomographic phase-contrast microscopy with isotropic pixel size of 0.65 μm. The technique allows morphological measurements of even the smallest capillary vessel branches over the entire brain. In this data collection we provide some original tomographic images produced by the method, and an analysis code that can make a segmentation of the vessels and extract the vessel graph from the images.

en: Micrometer-resolution tomographic reconstructions of whole mouse brain microvasculature and an analysis program

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en: Environment


en: Absorption spectra of optical transitions of Ho and Tb ions in LiYF4 were taken with different experimental techniques (e.g. FTIR, TDS, EPR and UTC) and ranging from MW, through THz, IR and visible, as part of Adrian Beckert's PhD thesis.

en: LiYF4:Ho and LiYF4:Tb data measured by Adrian Beckert


en: Quantum sensors and qubits are usually two-level systems (TLS), the quantum analogues of classical bits assuming binary values 0 or 1. They are useful to the extent to which superpositions of 0 and 1 persist despite a noisy environment. The standard prescription to avoid decoherence of solid-state qubits is their isolation by means of extreme dilution in ultrapure materials. We demonstrate a different strategy using the rare-earth insulator LiY1−xTbxF4 (x = 0.001) which realizes a dense random network of TLS. Some TLS belong to strongly interacting Tb3+ pairs whose quantum states, thanks to localization effects, form highly coherent qubits with 100-fold longer coherence times than single ions. Our understanding of the underlying decoherence mechanisms—and of their suppression—suggests that coherence in networks of dipolar coupled TLS can be enhanced rather than reduced by the interactions.

en: LiYF4:Tb Absorption and EPR spectroscopy


en:
FTIR at PSI
TDS at Leeds
UTC absorption spectroscopy at UCL

The insulating rare-earth magnet LiY1−xHoxF4 has received great attention because a laboratory field applied perpendicular to its crystallographic caxis converts the low-energy electronic spin Hamiltonian into the (dilute) transverse field Ising model. The mapping between the real magnet and the transverse field Ising model is strongly dependent on the exact nature of the low-energy Hamiltonian for the material, which can be determined by spectroscopy in the dilute limit. The energies of the eigenstates are in the difficult terahertz (THz) regime, and here we use THz time domain and Fourier transform spectroscopy to directly measure the lowest crystal-field levels of LiY1−xHoxF4 in the dilute limit, including nuclear hyperfine substructure. The high resolution of our measurements allows us to observe the nonequidistantly spaced Ho (I=72) hyperfine transitions originating from dipolar and quadrupolar hyperfine interactions. We provide refined crystal-field parameters and extract the dipolar and quadrupolar hyperfine constants AJ=0.02703$\pm$0.00003 cm−1 (810.3$\pm$0.9 MHz) and B=0.04$\pm$0.01 cm−1(1.2$\pm$0.3 GHz), respectively. Thereupon we determine all crystal-field energy levels and magnetic moments of the 5I8 ground-state manifold, including the (nonlinear) hyperfine corrections. The latter improve the prediction precision by a factor of 60 compared to previous crystal-field parameters. Additionally, we establish the far-infrared, low-temperature refractive index of LiY1−xHoxF4.

en: LiYHoF4 absorption spectroscopy


en: LiYTbF4 EPR and FTIR

en: LiYF4:Tb spectroscopy


en: The article accompanying this dataset gives a brief overview of the recent developments of time-resolved X-ray tomography that have led to what we now call “tomoscopy”. A novel setup is presented and applied that pushes temporal resolution down to just 1 ms, i.e. 1000 tomograms per second (‘tps') are acquired, while maintaining spatial resolutions of micrometres and running experiments for minutes without interruption. Applications recorded at different acquisition rates ranging from 50 to 1000 tps are presented. We observe and quantify the immiscible hypermonotectic reaction of AlBi10 (in wt%) alloy and dendrite evolution in AlGe10 (in wt%) casting alloy during fast solidification. We analyse the combustion process and the evolution of the constituents in a burning sparkler. Finally, we follow the structure and density of two metal foams over a long period of time and derive details of bubble formation and bubble ageing including quantitative analyses of bubble parameters with millisecond temporal resolution.

en: Tomoscopy: Time-resolved tomography for dynamic processes in materials


en: X-ray scattering tensor tomography (XSTT) facilitates the investigation of microstructural organization in statistically large sample volumes. Leveraging recent developments of diffractive optics, orders of magnitude faster XSTT has been developed and demonstrated. This new rapid acquisition method unlocks XSTT applications for rapid inspections and time-resolved studies of microstructure over orders of magnitude bigger volumetric field of views.

en: X-ray scattering tensor tomography data for a validation sample


en:
Ptychographic hard X-ray computed tomography (PXCT) is a recent method allowing imaging with quantitative electron-density contrast. Here, we imaged at cryogenic temperature and without sectioning, cellular and subcellular structures of a chemically-fixed and stained wild-type mouse retina (tomogram 1), including axons and synapses with complete isotropic 3D information over tens of microns. Comparison with tomograms of degenerative retina from a mouse model of retinitis pigmentosa (tomogram 2) illustrates the potential of this method for analysing disease processes like neurodegeneration at sub-200 nm resolution.

As a non-destructive imaging method, PXCT is very suitable for correlative imaging. Within the outer plexiform layer containing the photoreceptors synapses, we identified somatic synapses. We used a small region inside the X-ray-imaged sample for further high-resolution focused ion beam / scanning electron microscope (FIB/SEM) tomography (tomogram 3). The subcellular structures of synapses obtained with the X-ray technique matched the EM data demonstrating that PXCT is a powerful scanning method for tissue volumes of more than 60 cells and sensitive enough for identification of regions as small as 200 nm, remaining available for further structural and biochemical investigations.

en: Imaging of retina cellular and subcellular structures using ptychographic hard X-ray tomography.

en: tomography neurodegeneration photoreceptors synapse neurobiology retina mouse pigmentosa hard ptychography retinitis electron x-ray sem

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.

electron

display_name: electron

hard

display_name: hard

mouse

display_name: mouse

neurobiology

display_name: neurobiology

neurodegeneration

display_name: neurodegeneration

photoreceptors

display_name: photoreceptors

pigmentosa

display_name: pigmentosa

ptychography

display_name: ptychography

retina

display_name: retina

retinitis

display_name: retinitis

sem

display_name: sem

synapse

display_name: synapse

tomography

display_name: tomography

x-ray

display_name: x-ray


en: The associated article to these datasets describes two new genera and species, Aristospermum huberi E.M.Friis, P.R.Crane & K.R.Pedersen and Siratospermum mauldinense E.M.Friis, P.R.Crane & K.R.Pedersen as well as related fossils assigned to Aristospermum cf. huberi and Aristospermum sp. 1. The fossil seeds of Aristospermum are from the Early Cretaceous Buarcos, Catefica and Vale de Água mesofossil floras of Portugal (Aptian-early Albian) and the Puddledock mesofossil flora of Puddledock, Virginia, North America (early-middle Albian). The fossil seeds of Siratospermum are from the mid Cretaceous (early Cenomanian) Mauldin Mountain mesofossil flora. The fossils were studied for morphological and anatomical features using scanning electron microscopy (SEM) and synchrotron radiation X-ray tomographic microscopy (SRXTM). The seeds are anatropous, bitegmic and endostomic with the micropyle formed by the inner integument. The seed coat in all specimens consists of an exotesta of varied thickness, an endotesta of crystal cells and a three-layered tegmen with crossed fibers, features that in extant angiosperms define seeds of Aristolochiaceae (subfamilies Asaroideae and Aristolochioideae) and the fossils document for the first time the presence of the Aristolochiaceae lineage already by the Early Cretaceous.

en: Synchrotron radiation X-ray tomographic microscopy datasets for aristolochiaceous seeds from the Early Cretaceous of Portugal and North America

en: PSI Data Catalog

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en:
The raw and derived data are related to the following publication:

Drying of water from porous structures investigated by time-resolved X-ray tomography

In this contribution, we apply time-resolved X-ray tomography to study drying of water in porous ceramic substrates used in emission control technologies. A time resolution of 2 seconds is achieved, and allows to observe the spatiotemporal distribution of water in structured porous materials. An image processing framework based on machine learning is introduced to track pore emptying and filling in a large number of 3D scans. Drying curves are extracted from the tomographic data to investigate drying in materials with different structural properties. Water redistribution by capillary pumping and rapid pore emptying by Haines jumps are observed, and their impact on drying dynamics is discussed. The relationship between the evolution of water clusters and different drying regimes is established. The obtained information on the interplay between pore emptying, water redistribution and the size of water clusters provides an important link between the structural properties of dried materials and their drying rate.


en:
X-ray linear dichroism and X-ray birefringence microscopy are yet to be fully utilized as instruments in the microstructural characterization of crystalline materials. These datasets are obtained from the first demonstration of analyzer-free X-ray linear dichroism microscopy using spectroscopic hard X-ray ptychography. Analysis of these data enabled a spectroscopic and microstructural characterization of polycrystalline vanadium pentoxide on the nanoscale, outside of diffraction-contrast based methods.
This work is supported by the Swiss National Science Foundation (project numbers PZ00P2_179886 and 200021_178788).

en: Dataset: Nanoscale crystal grain characterization via linear polarization X-ray ptychography


en:
The performance of functional materials is either driven or limited by nanoscopic heterogeneities distributed throughout the material’s volume. To better our understanding of these materials, we need characterization tools that allow us to determine the nature and distribution of these heterogeneities in their native geometry in 3D. These datasets contain measurements of pristine and industrially used vanadium phosphorous oxide (VPO) catalysts. The experiments were conducted using combined method of x-ray near-edge spectroscopy, ptychographic x-ray computed nanotomography, and sparsity techniques. The method allows the acquisition of quantitative multimodal tomograms of representative sample volumes at sub–30 nm half-period spatial resolution within practical acquisition times, which enables local structure refinements in complex geometries.
This work is supported by the Swiss National Science Foundation (project numbers PZ00P2_179886 and 200021_178788).

en: Dataset: Sparse ab initio x-ray transmission spectrotomography for nanoscopic compositional analysis of functional materials


en: In this dataset the catalytic fast pyrolysis of three methoxyphenol isomers was investigated over HZSM-5 catalyst. The data is part of a manuscript submitted to the journal Phys. Chem. Chem. Phys., entitled " Operando PEPICO unveils the catalytic fast pyrolysis mechanism of the three methoxyphenol isomers". This work is supported by the Swiss National Science Foundation (project number 200021_178952).

en: Dataset: Operando PEPICO unveils the catalytic fast pyrolysis mechanism of the three methoxyphenol isomers


en: In this dataset the methanol to olefin reaction was investigated over H-ZSM-5 catalyst using Photoelectron Photoion Coincidence (PEPICO) coincidence techniques. The data is part of a manuscript submitted to the journal Angewandte Chemie, entitled " Ketenes in the Induction of the Methanol-to-Olefins Process". This publication was created as part of NCCR Catalysis, a National Centre of Competence in Research funded by the Swiss National Science Foundation.

en: Dataset: Ketenes in the Induction of the Methanol-to-Olefins Process


en: In the associated article to these datasets, we describe a new genus and species of probable lauralean relationship, together with a new fossil related to Virginianthus from the Early Cretaceous Puddledock mesofossil flora from Virginia, USA. A further specimen is also described from the Early Cretaceous Drewry’s Bluff mesofossil flora, also collected in Virginia. The fossils are lignitized (PP56524, PP56559, PP57029) or charcoalified (PP54167, 57027, PP57673) and preserved in the preanthetic stage as floral buds. Internal details were studied using synchrotron radiation X-ray tomographic microscopy at the TOMCAT Beamline, Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland. The flower buds are small and delicate, preserved as lignitized and charcoalified specimens highly suitable for SRXTM. The new lauralean fossil is characterized by a tetramerous and whorled arrangement of floral parts with at least six whorls of perianth parts and two whorls of stamens. The perianth is inserted on the outside of a distinct floral cup (hypanthium) and on the rim of the hypanthium. The androecium is also borne on the rim of the hypanthium. The gynoecium consists of three carpels that are free from each other but fused to the inside of the hypanthium wall. Each carpel has many ovules borne along two ventral placentae. The Virginianthus-like fossil has floral organs in a distinct spiral arrangement on the rim of a distinct floral cup with about 12 perianth parts and numerous stamens and possibly staminodes. The new lauralean fossil shows a mosaic of features shared by several modern groups and cannot be placed unequivocally in any extant family or order, but the overall combination of features indicates a position among magnoliid angiosperms, probably close to the base of the Laurales. The Virginianthus-like fossil is more straightforward to place and appears closely related to the lauralean family Calycanthaceae.

en: Synchrotron radiation X-ray tomographic microscopy datasets for multipartite and cupulate flowers from Early Cretaceous mesofossil floras of Virginia, USA


en: Gas-liquid two-phase flow is a very complex physical system. It is essential to study the physical interactions between gas and liquid phases, towards improving the modeling of the interfacial transport terms between the two phases. Higher resolution experimental data is essential for CFD quality closure model development. The two-phase flow behavior is highly influenced by flow conditions and the interaction between the bubbles of different sizes and different velocities. Currently, the prediction of bubble size distribution, bubble velocity and interfacial area concentration remain the most challenging tasks in analyzing the transport phenomena and simulating the turbulent bubble flows. Accordingly, several experiments have been conducted in tube bundles such as SUBFLOW at PSI. The SUBFLOW test facility is one of the very few facilities in the world that use Wire Mesh Sensors (WMS) to investigate the two-phase flow characteristics in tube bundles. In this work, we have reconstructed and recommissioned the SUBFLOW test facility, and utilize it to generate new data to extend the two-phase flow validation database, which includes void fraction, bubble distribution and bubble velocity measurement in a tube bundle. Separately, this paper also explains the WMS post processing techniques. Several WMS post-processing frameworks are available at PSI. The presented results show the variation between the different post-processing toolkits, as well as a comparison against previous SUBFLOW experimental data was conducted to verify the consistency of the recommissioning of SUBFLOW facility.

en: Experimental Study for High Reynolds’ Gas-Liquid Two-phase Flow through rod bundle using Wire Mesh Sensor (WMS)

stars

display_name: stars

subflow

display_name: subflow


en: This dataset has been used in the work titled ‘Metamorphic fabrics can be formed by stress without significant strain’ by Gilgannon et al. (2023). It was acquired at the TOMCAT beamline as part of a long term science proposal called ‘Implementing novel X-ray transparent triaxial deformation rigs to study fluid-rock interaction at mid-crustal conditions’. This research was funded through NERC standard grant NE/T001615/1.

en: Metamorphic fabrics can be formed by stress without significant strain - sample VA20

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.


en: Metamorphic fabrics can be formed by stress without significant strain - sample VA_s_1

en: PSI Data Catalog

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en: Time-resolved SRµCT study of the pore and lamella evolution of bread samples in-situ during baking inside a microwave-convective oven.

en: In-situ microwave-convective baking of bread using 4D SRµCT


en: The data is part of a manuscript submitted to the journal Phys. Chem. Chem. Phys., entitled " On the absolute photoionization cross section and threshold photoelectron spectrum of two reactive ketenes in lignin valorization: fulvenone and 2-carbonyl cyclohexadienone†". [https://doi.org/10.1039/D1CP05206C, Phys. Chem. Chem. Phys., 2022,24, 3655-3663 ]  This work is supported by the Swiss National Science Foundation (project number 200021_178952).

en: Dataset: On the absolute photoionization cross section and threshold photoelectron spectrum of two reactive ketenes in lignin valorization: fulvenone and 2-carbonyl cyclohexadienone


en:
We report the successful operation of a functional pixel detector with gaseous helium cooling. Using an accurate
mock-up beforehand, the cooling was validated. We use a miniature turbo compressor to propel the helium at 2 g/s
under ambient pressure conditions with gas temperatures above 0 °C. Our earlier results based on computational fluid
dynamics simulations and a much simpler mock-up are confirmed. With this, we paved the path to cool pixel detectors in
experimental particle physics at heat densities up to 400 mW/cm2 using helium. This enables cooling of detectors with
very low mass requirements, minimising the effects of multiple Coulomb scattering effectively. The concept presented
here is not limited to pixel detector applications and can be used to cool any surface with comparable heat-densities,
only limited by shaping the helium gas flow.

en: Successful cooling of a pixel tracker using gaseous helium: studies with a mock-up and a detector prototype.

en: helium mu3e myon pixel

helium

display_name: helium

myon

display_name: myon

pixel

display_name: pixel


en: The article linked to the datasets provided here describes a diverse assemblage of fossil mosses retrieved from the Early Cretaceous Catefica mesofossil flora, Portugal. The Catefica mesofossil flora is mainly dominated by angiosperm remains such as flowers, fruits and seeds. Mosses constitute a minor part of the flora. However, the mosses are systematically varied and informative, and they add important new information for understanding the diversification of the group through geological time. The fossil mosses from Catefica comprise three-dimensional charcoalified and lignitized fragments of gametophytes with leaves still attached and a single capsule. Twenty-four specimens were studied at the TOMCAT beamline of the Swiss Light Source of the Paul Scherrer Institute, Villigen, Switzerland. The analyses were carried out using a x10 objective with isotropic pixel size of 0.65 μm (S156534, S156535, S266374–S266379, S266383–S266392) or a x20 objective with isotropic pixel size of 0.325 μm (S171522, S174251, S266084, S266380–S266382). Together with scanning electron microscopy (SEM), the synchrotron radiation X-ray tomographic microscopy (SRXTM) analyses have revealed excellent morphology and cellular details that allow the recognition of seven new, extinct species accommodated in six genera. Three of the species can with confidence be placed in extant genera, while four are assigned to new, extinct genera. The species are distributed among four orders of extant mosses, Sphagnales, Polytrichales, Diphysciales and Dicranales, representing three classes, Sphagnopsida, Polytrichopsida and Bryopsida. Diphysciales being reported from Mesozoic strata for the first time. It is significant that although the Catefica mosses are diverse, they all document the presence of taxa from the basal grade of moss phylogeny, and all fossils belong to lineages that diverged prior to the diversification of the Bryidae, the most diverse clade of living mosses.

en: Synchrotron radiation X-ray tomographic microscopy datasets for Early Cretaceous mosses from the Catefica mesofossil flora, Portugal


en: The goal of the proposed experiment is to visualize and quantitatively describe the melt pool formation, its dynamics and formation of defects during Selective Laser Melting (SLM) manufacturing of alumina using operando synchrotron tomography. SLM manufacturing is a complex process that due to extremely fast melting, solidification and cooling cannot be explained by classical thermodynamic analysis.  This experiment will provide information, which was not accessible so far, but is a key to advance our understanding in laser additive manufacturing. For this purpose, an in-house built miniaturized SLM device for 3D printing alumina will be installed and used at the TOMCAT beamline for the first operando 3D imaging experiment, which will give direct insight into melt pool dynamics and defect formation occurring during SLM manufacturing

en: High-resolution time-resolved tomography of Selective Laser Melting of alumina


en: The article associated with these data collection describes the development of an image analysis pipeline suitable for analysis of all airspaces of an entire mouse lung. The classical stereology contributed to understanding the lung structure of the healthy and homogeneous lung, but has its limit in the analysis of heterogeneous structures such as diseased lung. Expanding stereology to the entire lung volume will allow for better comprehension of unevenly distributed lung damage. The proposed pipeline consists of several steps and starts with (i) image acquisition with high-resolution synchrotron radiation-based X-ray tomographic microscopy, as well as reconstruction and stitching of the individual scans, followed by (ii) image segmentation with free machine learning tool ilastik and ImageJ and (iii) calculation of the airspace diameter distribution with the thickness map function from the image analysis program pi2. To test the efficacy of the pipeline we analyzed adult mice lungs with cystic fibrosis-like disease or elastase-induced emphysema and their littermate controls. We were able to separately analyze two main lung compartments, the conducting airways and gas-exchange area. The distribution of airspace dimeters indicates the presence of enlarged lung airspaces in both compartments for both disease models. Finally, comparable results were obtained when applying the pipeline to images acquired with μCT, suggesting that our pipeline is applicable to a broader range of imaging modalities.

en: Airspace diameter map - a quantitative measurement of all pulmonary airspaces to characterize structural lung diseases


en: Many environmental and industrial processes depend on how fluids displace each other in porous materials. However, the flow dynamics that govern this process are still poorly understood. This dataset introduces a novel 4D micro-velocimetry method to study this, based on tracking flow-tracing micro-particles  (silver-coated hollow glass spheres of 10 µm diameter) using high-resolution X-ray computed tomography with fast imaging rates. The measurement was done at the TOMCAT beamline of the Swiss Light Source. The dataset pertains to unsteady-state multiphase flow in a porous sintered glass filter sample, in which a non-wetting phase (silicon oil) was injected at constant rate to displace the wetting phase (water doped with potassium iodide: 10%wt KI brine). The tracer particles were dispersed in the non-wetting phase. The dataset spans a time window of 50 seconds during which 200 tomograms were acquired (i.e. 4 Hz imaging rate), each with a 2.75 micrometer voxel size. During this time window, the dynamics prior, during and after a Haines jump were captured. We provide reconstructions without phase retrieval which maximize the contrast between the tracer particles and the non-wetting phase, and reconstructions with Paganin phase retrieval that maximize the contrast between the non-wetting and the wetting phase. The data shows that Haines jumps cause perturbations to the 3D flow field in the porous medium and makes it possible to investigate the non-equilibrium energy dynamics.

en: 4D X-ray micro-velocimetry data of multiphase flow perturbations in porous media

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.


en:
001 - UV-Vis spectra JSR1 reconstituted with all-trans retinal, 9-cis retinal, ATR6.11 and 9CR6.11
002 - UV-Vis spectra of JSR1 reconstituted with ATR6.11 and 9CR6.11, before and after acid denaturation
003 - UV-Vis spectra of JSR1 reconstituted with ATR6.11, after addition of hydroxylamine
004 - UV-Vis spectra of JSR1 reconstituted with 9CR6.11, after addition of hydroxylamine
005 - UV-Vis spectra of illuminated JSR/ATR6.11 and JSR/9CR6.11
006 - GTPase Glo Assay data measuring catalysis of nucleotide exchange in human G protein heterotrimers by JSR1/ATR6.11, JSR/9CR6.11 and JSR/9-cis retinal, with and without illumination
007 - Size exclusion chromatograms JSR1/ATR6.11 after incubations with human Gi or human Gq heterotrimers
008 - SDS-PAGE analysis of size exclusion chromatography peaks with JSR/ATR6.11 and human Gi or human Gq heterotrimers

en: Datasets relating to characterisation of Jumping Spider Rhodopsin-1 after reconstitution with retinal and retinal analogues

en: PSI Data Catalog

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en:
Tomographic data set of dynamic liquid water injection into SGL 24 BA gas diffusion layer

Data collected at TOMCAT beamline of SLS.

en: Tomographic data set of dynamic liquid water injection into SGL 25 BA gas diffusion layer

lamibracmularczyk-paper

display_name: lamibracmularczyk-paper

liquid-injection

display_name: liquid-injection

sgl

display_name: sgl

tomcat

display_name: tomcat


en:
Tomography data published in A. Mularczyk et al. (2020). 'Droplet and Percolation Network Interactions in a Fuel Cell Gas Diffusion Layer', Journal of The Electrochemical Society 167(8): 084506.  https://doi.org/10.1149/1945-7111/ab8c85
#####
The tomographic data of liquid water observed in the flow field channel was used also in Andersson, M., et al. (2018). "Modeling and synchrotron imaging of droplet detachment in gas channels of polymer electrolyte fuel cells." Journal of Power Sources 404: 159-171. https://doi.org/10.1016/j.jpowsour.2018.10.021
###### The tomographic data of liquid water observed in the GDL and flow field channel was also used in Niblett, D., et al. (2020). "Two-phase flow dynamics in a gas diffusion layer - gas channel - microporous layer system." Journal of Power Sources 471: 228427.  https://doi.org/10.1016/j.jpowsour.2020.228427
###### A small ROI segmentation around the water cluster in GDL of this dataset can be accessed under https://doi.org/10.16907/13dc29a3-733b-419b-ad61-838d17ddfa47
###### The Large ROI segmentation of this dataset can be accessed under https://doi.org/10.16907/a27fda1c-e6bb-47f0-ba14-31b407179756

en: Tomographic data set of dynamic liquid water injection into SGL 25 BA gas diffusion layer: Raw reconstruction


en:
Tomography data published in A. Mularczyk et al. (2020). 'Droplet and Percolation Network Interactions in a Fuel Cell Gas Diffusion Layer', Journal of The Electrochemical Society 167(8): 084506. https://doi.org/10.1149/1945-7111/ab8c85
######
The tomographic data of liquid water observed in the flow field channel was used also in Andersson, M., et al. (2018). "Modeling and synchrotron imaging of droplet detachment in gas channels of polymer electrolyte fuel cells." Journal of Power Sources 404: 159-171. https://doi.org/10.1016/j.jpowsour.2018.10.021
###### The tomographic data of liquid water observed in the GDL and flow field channel was also used in Niblett, D., et al. (2020). "Two-phase flow dynamics in a gas diffusion layer - gas channel - microporous layer system." Journal of Power Sources 471: 228427.  https://doi.org/10.1016/j.jpowsour.2020.228427

######
The Large ROI segmentation of this dataset can be accessed under 	https://doi.org/10.16907/a27fda1c-e6bb-47f0-ba14-31b407179756
######
The Raw CT data of this dataset can be accessed under 	https://doi.org/10.16907/63ac1a63-8ab6-4a92-be5a-db499c9e7e6a

en: Tomographic data set of dynamic liquid water injection into SGL 25 BA gas diffusion layer: SmallROI segmentation


en: We investigate solvent effects in the hydrodeoxygenation of 4-propylguaiacol (4PG, 166 amu), a key lignin-derived monomer, over Ru/C catalyst by combined operando synchrotron photoelectron photoion coincidence (PEPICO) spectroscopy and molecular dynamics simulations. With and without isooctane co-feeding, ring-hydrogenated 2-methoxy-4-propylcyclohexanol (172 amu) is the first product, due to the favorable flat adsorption configuration of 4PG on the catalyst surface. In contrast, tetrahydrofuran (THF)—a polar aprotic solvent that is representative of those used for lignin solubilization and upgrading—strongly coordinates to the catalyst surface at the oxygen atom. This induces a local steric hindrance, blocking the flat adsorption of 4PG more effectively, as it needs more Ru sites than the tilted adsorption configuration revealed by molecular dynamics simulations. Therefore, THF suppresses benzene ring hydrogenation, favoring a demethoxylation route that yields 4-propylphenol (136 amu), followed by dehydroxylation to propylbenzene (120 amu). Solvent selection may provide new avenues to controlling catalytic selectivity.

en: Dataset: A Solution for 4-Propylguaiacol Hydrodeoxygenation without Ring Saturation


en:
The articles based on this dataset discuss structural dynamics in an operating zero-gap forward-bias bipolar membrane CO2 electrolyzer using time-resolved X-ray tomographic microscopy. The employed setup provides high-quality four-dimensional imaging in a FOV of 5 mm height at 2.75 um voxel size and one full scan (1s acquisition) every minute. Different routes for segmentation yield the membrane with forming cavities, the catalyst layer and the porous cathode gas diffusion layer including pore and flow field filling with liquid water.
We find strong swelling of the membrane, membrane delamination, anode catalyst layer degradation, but no flooding of the cathode.

en: Operando X-ray tomography in bipolar membrane electrolyte CO2-electrolysis


en: Multiphase fluid flow through porous media occurs in various natural and engineered settings. How local wetting phenomena, such as those induced by pore-scale roughness, translate into effective multiphase fluid flow behavior observed at larger scales remains poorly understood. In this study, an unsteady-state waterflooding experiment in a sandstone sample with pronounced surface roughness was conducted and imaged using synchrotron-based sub-micron time-resolved X-ray tomography at the TOMCAT beamline of the Swiss Light Source. The data shows how local roughness features cause fluid displacements to occur as a series of smaller sub-pore scale events controlled by (de-)pinning of the fluid-fluid interface and wetting layer growth. Our data offers quantitative insights into multiphase fluid displacement process and provides a basis to verify numerical simulations of pore-scale multiphase fluid flow.

en: A submicron time-resolved X-ray tomography dataset investigating the role of surface roughness during multiphase flow in porous media


en: The data is part of a manuscript submitted to the journal Green Chemistry, entitled "Catalytic pyrolysis mechanism of lignin moieties driven by aldehyde, hydroxyl, methoxy, and allyl functionalization: the role of reactive quinone methide and ketene intermediates". [DOI https://doi.org/10.1039/d4gc03143a. This work is supported by the Swiss National Science Foundation (project number 200021_178952)

en: Dataset: Catalytic pyrolysis mechanism of lignin moieties driven by aldehyde, hydroxyl, methoxy, and allyl functionalization: the role of reactive quinone methide and ketene intermediates

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.


en: Understanding the biomechanics of the human middle ear remains a challenge, primarily due to the auditory ossicles’ size, its location in the temporal bone, and subtle movements. In a recent study, dynamic synchrotron-based X-ray microtomography has been used on acoustically stimulated intact human ears, allowing the three-dimensional visualization of the ossicular chain in intact human ears for the first time. The implementation of a dedicated analysis pipeline has demonstrated the ability to resolve fast micromotions at 128 Hz for two acoustic stimuli (110 and 120 dB Sound Pressure Level (SPL)) on fresh-frozen human temporal bones. Measuring at lower sound pressure levels is challenging, because the ossicular vibrations become smaller, and the spatial resolution limit of the current detection system is reached. Increasing the spatial resolution without compromising the image quality or the temporal resolution would significantly extend the dynamic imaging capabilities. Here, a comparative study is conducted for a stimulation frequency of 128 Hz at 120 dB SPL between two synchrotron-based X-ray magnification setups: a 4x high NA macroscope (pixel size 2.75 \textmu m) versus a x10 high NA microscope (pixel size 1.1 \textmu m) in combination with the GigaFRoST fast read-out detector. It shows that an increase in resolution can indeed improve the detection of the micromovements, at the compromise of a more limited field of view.

en: High-resolution dynamic synchrotron-based X-ray microtomography of the human middle ear

en: PSI Data Catalog


en:
Background: The Thiel embalming method offers lifelike tissue preservation, yet its suitability for biomechanical studies remains debated.
Methods: Here, we investigated two human temporal bones, one Thiel-fixed and one fresh-frozen, using dynamic synchrotron-based X-ray imaging under acoustic stimulation.

en: Comparison of Thiel-fixed and fresh-frozen temporal bones with dynamic synchrotron-based X-ray imaging

envi

en: Environment


en: Near-field PXCT dataset of a resin-embedded, heavy meatal stained brain specimen of about 100 micron diameter. The same sample was measured afterwards at the ID16A beamline of he ESRF


en: The MEG II experiment, based at the Paul Scherrer Institut in Switzerland, reports the result of a search for the decay μ^+->e^+γ from data taken in the first physics run in 2021. No excess of events over the expected background is observed, yielding an upper limit on the branching ratio of B(μ^+->e^+γ) < 7.5 x 10^-13 (90% CL). The combination of this result and the limit obtained by MEG gives B(μ^+->e^+γ) < 3.1 x 10^-13 (90% CL), which is the most stringent limit to date. A ten-fold larger sample of data is being collected during the years 2022–2023, and data-taking will continue in the coming years.

en: A search for  μ^+ -> e^+ γ  with the first dataset of the MEG II experiment

en: meg2 physics database offline aod

aod

display_name: aod

database

display_name: database

offline

display_name: offline

physics

display_name: physics


en:
n this work, we introduce the first single-photon-counting hybrid pixel detec-27
tor capable of detecting X-ray energies as low as 550 eV, utilizing the internal28
amplification of Low-Gain Avalanche Diode (LGAD) sensors. This detector is29
thoroughly characterized in terms of Signal-to-Noise Ratio and Detective Quan-30
tum Efficiency. We demonstrate its capabilities through ptychographic imaging31
at MAX IV 4th generation synchrotron light source at the Fe L3-edge (707 eV),32
showcasing the enhanced detection performance of the system. This development33
sets a new benchmark for soft X-ray applications at synchrotrons, paving the way34
for significant advancements in imaging and analysis at lower photon energies.

en: Single-photon counting pixel detector for soft X-rays - raw data


en:
X-ray tomographic microscopy of structural damages in a forward-bias bipolar membrane CO2-electrolyzer
TO BE EXTENDED


en: We have quantified the complex motion patterns of the human tympanic membrane during acoustic stimulation using dynamic synchrotron-based X-ray microtomography combined with non-rigid registration. Here, we present the datasets used in this study, which were measured at the TOMCAT Beamline X02DA of the Swiss Light Source (Paul Scherrer Institute, Villigen, Switzerland). Three fresh-frozen samples were acoustically stimulated with frequencies ranging from 128 to 512 Hz and sound pressure level ranging from 120 to 151 dB. The datasets, which have 2.75 um pixel size, were reconstructed across 10 phases of motion. The non-rigid registration results, namely spatial transformations from one reference phase to all subsequent phases of motion, are also provided. The complex motion patterns showed displacement 'hot spots' in the posterosuperior quadrant of the tympanic membrane and the pars flaccida for all three specimens, though variation in displacement amplitudes strongly varied between specimens, ranging from <0.15 to nearly 2 um/Pa.

en: Dynamic synchrotron-based microtomography of human tympanic membrane motions


en: X-ray photon correlation scattering measurements are undertaken on a thermally active artificial spin ice based on the square lattice, referred to as artificial square ice, to probe the fluctuation timescales as a function of temperature as the system passes through the paramagnetic- antiferromagnetic phase transition, which belongs to the two-dimensional Ising universality class.

en: Stretched exponential magnetic relaxation dynamics in artificial square ice revealed through x-ray photon correlation spectroscopy

en: coherent-soft-x-ray-scattering x-ray-photon-correlation-spectroscopy synchrotron 23-id-1 csx nsls-ii detector-frames

coherent-soft-x-ray-scattering

display_name: coherent-soft-x-ray-scattering

csx

display_name: csx

detector-frames

display_name: detector-frames

nsls-ii

display_name: nsls-ii

synchrotron

display_name: synchrotron

x-ray-photon-correlation-spectroscopy

display_name: x-ray-photon-correlation-spectroscopy


en: CT data (few raw slice time series, segmented dry and 1Hz operando cathode water) used Mularczyk, A., et al. (2021). 'Operando Liquid Pressure Determination in Polymer Electrolyte Fuel Cells.' ACS Applied Materials & Interfaces 13(29): 34003-34011. https://doi.org/10.1021/acsami.1c04560

en: Tomographic data set of 1Hz 4D imaging of water percolation and percolation path instability in Toray TGP-H-060 gas diffusion layer

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.


en: Analyzing the structure and dynamics of the human middle ear is crucial for understanding biomechanics and improving clinical practice; however, characterizing the motion of middle ear structures is challenging due to their small sizes, location inside the temporal bone, and minute displacements. Synchrotron radiation-based X-ray microtomography can visualize the entire intact middle ear with micrometer resolution and, combined with dynamic acquisition, reveal motion in response to acoustic stimulation. Unfortunately, access to synchrotron radiation facilities is limited, time-resolved experiments require specialized experimental setups, and handling the related TB-scale data volumes requires high performance computing infrastructure. Data sharing efforts can increase accessibility and encourage development of new research directions. Here, we share dynamic microtomography datasets of 12 of the same samples acquired during acoustic stimulation at a frequency of 128 Hz and sound pressure level of 120 dB. These datasets allow for the combined analysis of rich anatomical information and motion patterns across the entire middle ear.

en: Dynamic synchrotron X-ray microtomography of 12 intact human middle ears during acoustic stimulation

en: middle-ear time-resolved-imaging hearing-research dynamic-x-ray-microtomography

en: PSI Data Catalog

dynamic-x-ray-microtomography

display_name: dynamic-x-ray-microtomography

hearing-research

display_name: hearing-research

middle-ear

display_name: middle-ear

time-resolved-imaging

display_name: time-resolved-imaging


en: Analyzing the structure and dynamics of the human middle ear is crucial for understanding biomechanics and improving clinical practice; however, characterizing middle ear structures is challenging due to their small sizes, location inside the temporal bone, and minute displacements. Synchrotron radiation-based X-ray microtomography can visualize both the soft and hard tissues of the entire intact middle ear with micrometer resolution. Unfortunately, access to synchrotron radiation facilities is limited and handling the related TB-scale data volumes requires high performance computing infrastructure. Data sharing efforts can increase accessibility and encourage development of new research directions. Here, we share static microtomography datasets covering the entire middle ear and surroundings for 15 fresh-frozen human temporal bones with voxel sizes of 2.75 or 5.8 µm. For convenience, we the data are re-oriented to an anatomical coordinate system where the main axis of the malleus runs approximately along the y-axis (from head to umbo) and the stapes runs approximately along the z-axis (from incudostapedial joint to footplate). These re-oriented volumes were cropped to the middle ear including joints, tendons, and ligaments. These datasets allow for the analysis of rich anatomical information across a range of specimens.

en: Anatomically oriented static synchrotron X-ray microtomography of 15 intact human middle ears

en: middle-ear anatomy synchrotron-radiation x-ray-microtomography hearing-research

envi

en: Environment

anatomy

display_name: anatomy

synchrotron-radiation

display_name: synchrotron-radiation

x-ray-microtomography

display_name: x-ray-microtomography


en: In the associated article to these datasets, we investigate the effect of lossy compression of original X-ray projections onto the final tomographic reconstructions. We demonstrate that a compression factor of at least 3-4x does generally not impact the reconstruction quality. Potentially, compression with this factor could therefore be used in a transparent way to the user community for instance prior to data archiving. Higher factors (6-8x) can be achieved for tomographic volumes with a high signal-to-noise ratio as it is the case for phase retrieved datasets.

en: Selection of representative datasets for data compression investigations


en: This letter reports the result of the search for the decay mu+ -> e+ gamma undertaken at the Paul Scherrer Institut in Switzerland with the MEG II experiment using the data collected in the 2021–2022 physics runs. The sensitivity of the branching ratio measurement in this search is 2.2 \times 10^{-13}, a factor of 2.4 better than that of the full MEG dataset and obtained in a data taking period of about one fourth that of MEG, thanks to the superior performances of the new detector. The observed data are consistent with the expected background, yielding an upper limit on the branching ratio of mu+->e+gamma < 1.5 \times 10^{-13} (90% C.L.). Additional improvements are expected with the data collected during the years 2023–2024. The data-taking will continue in the coming years.

en: New limit on mu ^+ -> e^+ gamma decay with the MEG II experiment

en: meg2 physics database aod offline

aod

display_name: aod


en: In the corresponding article to these data sets, we explore the flow dynamics for two-phase flow in a porous medium (a bioclastic carbonate rock). We use state-of-the-art synchrotron X-ray tomography to capture the fluid dynamics within the pore space, with a temporal resolution of 1 s. The rock sample was initially saturated with brine (DI water doped with 15%wt. KI) before brine and nitrogen gas were injected simultaneously. As the gas establishes a path through the pore space, the flow dynamics are transient. Eventually, an equilibrium is established, where the gas saturation oscillates about a constant mean value; this is referred to as steady state. There are 9 data sets, with all the dynamics captured during steady state. We explore 3 total flow rates (brine flow rate + nitrogen flow rate): 0.1ml/min, 0.4ml/min, 0.7ml/min. With 3 fractional flows (brine flow rate / total flow rate) explored for each total flow rate: 0.85, 0.7 and 0.5. The images were captured with a voxel size of 2.75 µm3. In these data sets we observe the development of intermittent flow pathways, and the stability of these pathways when perturbed by a change in the flow rate .

en: The development and stability of intermittent fluid flow pathways during multiphase flow in porous media.


en: Magma reservoirs are not directly accessible, limiting our capability to understand the prerequisites for an explosive eruption and our ability to perform experiments that simulate magmatic processes at depth. Therefore, deciphering volcanic precursors is key to forecasting volcanic eruptions. In the publication related to these datasets, we used synchrotron-based X-ray tomographic microscopy to observe felsic magma vesiculation at high temperature (1100 C) to establish the pre-eruptive conditions that favor explosive activity. Specifically, we studied the increase of seismic attenuation with increasing gas content during magma vesiculation.

en: Felsic magma vesiculation revealed by synchrotron-based X-ray tomographic microscopy


en:
The extinct plant group Bennettitales (Cycadeoidales) was a prominent part of Mesozoic vegetation. The group has been studied extensively and for more than 100 years it has been central in discussions of the relationships among the major groups of seed plants in which extinct plants were also considered. Despite much effort the phylogenetic position of the Bennettitales is still unresolved with a major obstacle being uncertainty about how to interpret the organisation and structure of the seed. The most widely accepted interpretation has been that the seed, like the seeds of most conifers, has a single integument around the nucellus and lacks any additional coverings. An alternative interpretation is that the seed integument is surrounded by an envelope comparable to the situation in extant Gnetales and extinct Erdtmanithecales. The petrified seed cone of Cycadeoidea (Bennettites) morierei described in the late nineteenth century from the Early Cretaceous of Normandy is one of the most informative bennettitalean reproductive structures with its superb preservation offering great potential for resolving the unsettled discussion regarding seed structure in Bennettitales.
	C. morierei was carefully documented by Octave Lignier in his monumental study “Végétaux fossiles de Normandie. Structure et affinités du Bennettites morierei Sap. & Mar. (sp.)” from 1894, but despite his meticulous analysis of the fossil, Lignier left certain questions open in his interpretation and in his widely cited reconstruction of the structure of the seed. In the paper associated with the datasets provided here we have re-examined fragments of Cycadeoidea morierei using synchrotron X-ray tomographic microscopy (SRXTM) to attempt to answer some of these open questions.
	Cycadeoidea morierei is based on a single petrified seed cone. The specimen was fractured by Lignier, who prepared several thin sections, in longitudinal as well as transverse directions in preparing his account. The original material was stored at the University of Caen, France, but most was lost during the second World War. However, several larger and smaller fragments of the seed cone were later recovered at the university and made available for the present study. Among the fragments studied using SRXTM were small isolated, abraded seeds and interseminal scales (e.g., fragments 6 and 8) and a few small groups of fractured seeds and interseminal scales still tightly packed together (e.g., fragment 17). Typically, these small fragments are broken at the base and only rarely are remains of the seed stalk preserved. One larger fragment (fragment 24) consists of several seeds with seed stalks intact. For comparison with Cycadeoidea morierei we also examined a fragment of another classic petrified seed cone, Cycadeoidea gibsoniana from the Early Cretaceous of isle of Wight, Southern England, using SRXTM. The results, combined with a comparative survey of other fossil material, indicate that the seeds of Bennettitales had at least one, perhaps two, envelopes covering the integument, comparable to what is seen among extant Gnetales, extinct Erdtmanithecales, and diverse fossil seeds recovered from Early Cretaceous mesofossil assemblages. Most of the SRXTM analyses of the Cycadeoidea material were carried during 2009-2023 on the TOMCAT beamline, SLS, Paul Scherrer Institute, Villigen, Switzerland. Fragment 24 was analysed at the new I-TOMCAT beamline at SLS in November 2025.

en: Synchrotron radiation X-ray tomographic microscopy datasets for seed structure in Cycadeoidea morierei

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.


en: Plasticity in amorphous SiO2 at the micro-scale is an unsolved problem. We aim to study the responsible deformation mechanisms (densification, shear flow, and shear band formation) and propose a Ptychographic X-ray Computed Tomography (PXCT) experiment to image the three-dimensional density distribution in plastically deformed silica micro-pillars. Understanding the spatial extend and geometric aspects of these mechanisms will contribute to the technological exploitation of these phenomena.

en: Direct observation of micro-plasticity in fused silica glass

en: PSI Data Catalog


en: This dataset has been used in the work titled ‘Metamorphic fabrics can be formed by stress without significant strain’ by Gilgannon et al. (2023). It was acquired at the TOMCAT beamline as part of a long term science proposal called ‘Implementing novel X-ray transparent triaxial deformation rigs to study fluid-rock interaction at mid-crustal conditions’. This research was funded through NERC standard grant NE/T001615/1.

en: Metamorphic fabrics can be formed by stress without significant strain - sample VA17


en: Chloride transport by microbial rhodopsins is an essential process of which the molecular details have remained elusive, such as the mechanisms that convert light energy to drive ion pumping and ensure the unidirectionality of the transport. We combined time-resolved serial crystallography with time-resolved spectroscopy and multiscale simulations to elucidate the molecular mechanism of a chloride pumping rhodopsin and the structural dynamics throughout the transport cycle. We traced transient anion binding sites, obtained evidence for how light energy is used in the pumping mechanism, and identified steric and electrostatic molecular gates ensuring unidirectional transport. An interaction with the π-electron system of the retinal supports transient chloride ion binding across a major bottleneck in the transport pathway. These results allow us to propose key mechanistic features enabling finely controlled chloride transport across the cell membrane in this light powered chloride ion pump.

en: Dynamics and mechanism of a light-driven chloride pump - SFX datasets

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en: Environment


en:
This repository contains the complete dataset and associated software supporting the publication:
“In-Situ Ptychographic Nanotomography Captures Activation, Mobility, and Deactivation of Supported Catalysts”

The data were acquired using in-situ ptychographic X-ray computed nanotomography (PXCT) and used to investigate structural evolution of Pd-on-silica catalysts under methane oxidation conditions.
Experiments were performed at the cSAXS beamline of the SLS.

The dataset includes raw diffraction data, reconstructed projections, 3D electron density tomograms, and analysis/reconstruction codes.

Codes:
cxs_software_ptychography/  Contains ptychographic reconstruction routines (phase retrieval, scan handling, preprocessing).
cxs_software_tomography/    Contains tomographic reconstruction and 3D volume processing tools.

Raw Data
S03000-03999_ID ...     Raw diffraction datasets acquired during in-situ scanning nanotomography experiments

Reconstructed Data
analysis_S03000-03999 ...    Includes phase and/or amplitude porjection reconstructions
reconstructed_tomograms    Volumetric datasets derived from ptychographic projections used for analysis

en: Data and Software Supporting: In-Situ Ptychographic Nanotomography Captures Activation, Mobility, and Deactivation of Supported Catalysts

heterogeneous-catalysis

display_name: heterogeneous-catalysis

x-ray-ptychography

display_name: x-ray-ptychography

x-ray-tomography

display_name: x-ray-tomography


en: Metamorphic fabrics can be formed by stress without significant strain - sample VA10


en: Metamorphic fabrics can be formed by stress without significant strain - sample VA_A


en:
The experimental realisation of unconventional superconductivity and charge order
in kagome systems AV3Sb5 is of critical importance. This work presents the most
systematic study to date, employing tuning parameters such as doping, hydrostatic
pressure, magnetic fields, and depth, using muon spin rotation, AC susceptibility, and
STM, to uncover tunable exotic magnetism in the normal state of Cs(V1−xNbx)3Sb5
with x=0.07 (Nb0.07-CVS), which transitions to a chiral superconducting state under
pressure. Our findings reveal that the bulk of Nb0.07-CVS (at depths >20 nm from the
surface) experiences time-reversal symmetry (TRS) breaking below T ∗ = 40 K, lower
than the charge order onset temperature, TCO = 58 K. However, near the surface (<20
nm), the TRS breaking signal doubles and onsets at TCO, indicating that Nb-doping
decouples TRS breaking from charge order in the bulk but synchronises them near
the surface. Additionally, Nb-doping raises the superconducting critical temperature
TC from 2.5 K to 4.4 K. Applying hydrostatic pressure enhances both TC and the
superfluid density by a factor of two, with a critical pressure pcr ≃ 0.85 GPa, suggesting
competition with charge order. Notably, above pcr, we observe nodeless electron pairing
and weak internal fields below TC, pointing to chiral superconducting pairing. Overall,
these results demonstrate a highly unconventional normal state with a tunable onset of
TRS breaking, and a transition to chiral superconductivity under low pressures, with
an unconventional correlation between TC and the superfluid density.

en: Pressure induced transition from chiral charge order to time-reversal symmetry-breaking superconducting state in Nb-doped CsV3Sb5 - LEM data


en: The small size, the location (embedded in the temporal bone), and the tiny movements of the three ossicles of the human middle ear make the study of sound transmission through the human auditory system extremely challenging. From the encouraging results of our previous investigations with dynamic synchrotron-based phase-contrast microtomography (proposal 20200954), we aim to further characterize the biomechanics of the human middle ear. The goal is to stimulate the middle ear with a broad range of sound frequencies, covering a wider spectrum of the human voice, together with a range of sound intensities meeting physiological criteria.

en: DYNAMITE: DYNamic phAse-contrast MIcro-Tomography of the human middle Ear


en:
In the original article associated with this dataset, we present synchrotron radiation-based X-ray phase-contrast imaging (X-PCI) as an efficient and non-destructive imaging technique to provide high resolution, three-dimensional (3D) information on myocardial microstructure in left ventricular hypertrophy. In the pilot study, the methodology was applied on tissue samples obtained from three patients that underwent septal myectomy. This technique allows for multi-scale investigation - to localize regions of interest, low resolution overlapping scans, at 5.8um effective pixel size, were achieved to cover the entire sample, whereas high resolution datasets, at 0.65 um pixel size, were collected locally allowing assessment of myocyte organization, 3D connective tissue distribution and vasculature.
X-PCI data was visualized and analyzed. 3D myocyte arrangement, interstitial fibrosis, collagen disarray, and vascular remodelling were identified and related to findings of non-invasive cardiac imaging. The integration of imaging data data illustrates the correspondence of macrostructural and functional non-invasive phenotypes with invasive microstructural phenotypes, suggesting the potential clinical utility of non-invasive myocardial deformation patterns in phenotyping left ventricular hypertrophy.

en: Etiology-Discriminative Multimodal Imaging of Left Ventricular Hypertrophy and Synchrotron-Based Assessment of Microstructural Tissue Remodeling

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.


en: The binding and release of ligands from their protein targets is central to fundamental biological processes as well as to drug discovery. Photopharmacology introduces chemical triggers that allow the changing of ligand affinities and thus biological activity by light. Insight into the molecular mechanisms of photopharmacology is largely missing because the relevant transitions during the light-triggered reaction cannot be resolved by conventional structural biology. Using time-resolved serial crystallography at a synchrotron and X-ray free-electron laser, we have captured the release of azo-combretastatin A4 and the resulting conformational changes in tubulin. Nine structural snapshots from 1 ns to 100 ms complemented by simulations show how cis-to-trans isomerization of the azobenzene bond leads to a switch in ligand affinity, opening of an exit channel, and collapse of the binding pocket upon ligand release. The resulting global backbone rearrangements are related to the action mechanism of tubulin-binding drugs against gout, cancer, and COVID-19.

en: Watching the release of a photopharmacological drug from tubulin using time-resolved serial crystallography: Dark state

en: PSI Data Catalog


en: The associated article to these datasets describes a new genus and two new species from the Late Cretaceous (Campanian-Maastrichtian) Mira locality, District of Coimbra, Portugal. The new taxa are based on small lignitized and charcoalified flower buds, post-anthetic flowers and a fruit. Internal structures of the fossils were investigated using synchrotron radiation X-ray tomographic microscopy at the TOMCAT Beamline, Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland. Internal structures and other details provide clear evidence for a phylogenetic position of the fossils in the family Primulaceae of the order Ericales. A key distinctive feature that is critical for placing the fossils in the Primulaceae s. l., is the free, central dome-shaped placenta that bears numerous, densely spaced ovules. The fruit matured into a capsule containing many, minute, reticulate seeds. Phylogenetic analyses using external and internal features of the fossils confirm their relationship to Primulaceae s. l. and indicate a position as sister to the genus Samolus of the subfamily Theophrastoideae. The occurrence of these fossils in the Late Cretaceous calls into question a previous hypothesis that the Theophrastoideae originated in the Neotropics and dispersed relatively recently into other regions.

en: Synchrotron radiation X-ray tomographic microscopy datasets for primuloid flowers from the Late Cretaceous of Portugal


en: Data of the paper "Global sensitivity analysis on numerical solver parameters of Particle-In-Cell models in particle accelerator systems" published in Computer Physics Communications. The data is generated as part of the PhD thesis funded by the Swiss National Science Foundation (SNSF) under contract number 200021_159936.

en: Data of of a global sensitivity study of the PSI Injector 2, PSI Ring Cyclotron, IsoDAR and AWA RF gun

envi

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en: This dataset has been used in the work titled ‘Metamorphic fabrics can be formed by stress without significant strain’ by Gilgannon et al. (2023). It was acquired at the TOMCAT beamline as part of a long term science proposal called ‘Implementing novel X-ray transparent triaxial deformation rigs to study fluid-rock interaction at mid-crustal conditions’. This research was funded through NERC standard grant NE/T001615/1.

en: Metamorphic fabrics can be formed by stress without significant strain - sample VA18


en: The ability of photofunctional organic molecules to perform chemical/mechanical work or convert photons into electrons results from a complex interplay between charge transfer and transient atomic rearrangements involving the local environment. These ultrafast structural dynamics have remained elusive experimentally, preventing a mechanistic understanding of the electronic-nuclear couplings. We will use the high X-ray photon flux and sub ps time resolution of the SwissFEL to realize the first X-ray scattering observation of solute-solvent dynamics following photoinduced charge transfer in an organic chromophore. The sensitivity of the scattering to changes in atomic distances will be exploited not only to track in real time the intra- and intermolecular structural dynamics but also to identify the electronic changes that trigger them. The results will pave the way for a better understanding of the factors governing the outcomes of photoreactions across chemistry and biology.

en: Photoinduced intramolecular and solvation dynamics of an organic chromophore in polar solvent


en:
Two-dimensional magnetic materials attract a lot of attention since
they potentially exhibit new magnetic properties due to, e.g., strongly
enhanced spin fluctuations. However, the suppression of the long-range
magnetic order in two dimensions due to long-wavelength spin fluctuations,
as suggested by the Mermin-Wagner theorem, has been questioned
for finite-size laboratory samples. Here we study the magnetic properties
of a dimensional crossover in superlattices composed of the antiferromagnetic
LaFeO3 and SrTiO3 that, thanks to their large lateral size, allowed
examination using a sensitive magnetic probe — muon spin rotation spectroscopy.
We show that the iron electronic moments in superlattices with
3 and 2 monolayers of LaFeO3 exhibit a static antiferromagnetic order. In
contrast, in the superlattices with single LaFeO3 monolayer, the moments
do not order and fluctuate to the lowest measured temperature as expected
from the Mermin-Wagner theorem. Our work shows how dimensionality
can be used to tune the magnetic properties of ultrathin films.

en: Magnetic properties of LaFeO3/SrTiO3 superlattices


en:
Tomography data published in A. Mularczyk et al. (2020). 'Droplet and Percolation Network Interactions in a Fuel Cell Gas Diffusion Layer', Journal of The Electrochemical Society 167(8): 084506. https://doi.org/10.1149/1945-7111/ab8c85
###### The tomographic data of liquid water observed in the flow field channel was used also in Andersson, M., et al. (2018). "Modeling and synchrotron imaging of droplet detachment in gas channels of polymer electrolyte fuel cells." Journal of Power Sources 404: 159-171. https://doi.org/10.1016/j.jpowsour.2018.10.021
###### The tomographic data of liquid water observed in the GDL and flow field channel was also used in Niblett, D., et al. (2020). "Two-phase flow dynamics in a gas diffusion layer - gas channel - microporous layer system." Journal of Power Sources 471: 228427.  https://doi.org/10.1016/j.jpowsour.2020.228427
###### A small ROI segmentation around the water cluster in GDL of this dataset can be accessed under https://doi.org/10.16907/13dc29a3-733b-419b-ad61-838d17ddfa47
###### The Raw CT data of this dataset can be accessed under https://doi.org/10.16907/63ac1a63-8ab6-4a92-be5a-db499c9e7e6a

en: Tomographic data set of dynamic liquid water injection into SGL 25 BA gas diffusion layer: Large ROI segmentation

lamibracmularczyk-paper

display_name: lamibracmularczyk-paper

liquid-injection

display_name: liquid-injection

sgl

display_name: sgl

tomcat

display_name: tomcat


en: The experimental realisation of unconventional superconductivity and charge order in kagome systems AV3Sb5 is of critical importance. This work presents the most systematic study to date, employing tuning parameters such as doping, hydrostatic pressure, magnetic fields, and depth, using muon spin rotation, AC susceptibility, and STM, to uncover tunable exotic magnetism in the normal state of Cs(V1−xNbx)3Sb5 with x=0.07 (Nb0.07-CVS), which transitions to a chiral superconducting state under pressure. Our findings reveal that the bulk of Nb0.07-CVS (at depths >20 nm from the surface) experiences time-reversal symmetry (TRS) breaking below T ∗ = 40 K, lower than the charge order onset temperature, TCO = 58 K. However, near the surface (<20 nm), the TRS breaking signal doubles and onsets at TCO, indicating that Nb-doping decouples TRS breaking from charge order in the bulk but synchronises them near the surface. Additionally, Nb-doping raises the superconducting critical temperature TC from 2.5 K to 4.4 K. Applying hydrostatic pressure enhances both TC and the superfluid density by a factor of two, with a critical pressure pcr ≃ 0.85 GPa, suggesting competition with charge order. Notably, above pcr, we observe nodeless electron pairing and weak internal fields below TC, pointing to chiral superconducting pairing. Overall, these results demonstrate a highly unconventional normal state with a tunable onset of TRS breaking, and a transition to chiral superconductivity under low pressures, with an unconventional correlation between TC and the superfluid density.

en: Pressure induced transition from chiral charge order to time-reversal symmetry-breaking superconducting state in Nb-doped CsV3Sb5 - GPS data

en: The PSI Data Catalog is the central repository directory for scientific metadata generated at the Paul Scherrer Institut (PSI). Powered by SciCat—a community-driven, open-source metadata management framework co-developed by PSI—the catalog provides discoverability and standardized access pathways to petabyte-scale datasets produced across PSI’s large-scale research facilities, including the Swiss Light Source (SLS), the Swiss Spallation Neutron Source (SINQ), and the SwissFEL X-ray free-electron laser.

gps

display_name: gps

smus

display_name: smus


en: In the associate article to these data sets, we present an X-ray tomographic imaging method that is well suited for pulmonary disease studies in animal models, to resolve the full pathway from gas intake to gas exchange. Current state-of-the-art synchrotron-based tomographic phase-contrast imaging methods allow for three-dimensional microscopic imaging data to be acquired non-destructively in scan times of the order of seconds with good soft tissue contrast. However, when studying multi-scale hierarchically structured objects, such as the mammalian lung, the overall sample size typically exceeds the field of view illuminated by the X-rays in a single scan, and the necessity for achieving a high spatial resolution conflicts with the need to image the whole sample. Several image-stitching and calibration techniques to achieve extended high-resolution fields of view have been reported, but those approaches tend to fail when imaging non-stable samples, thus precluding tomographic measurements of large biological samples, which are prone to degradation and motion during extended scan times. In this work, we demonstrate a full-volume three-dimensional reconstruction of an intact rat lung under immediate post mortem conditions and at an isotropic voxel size of (2.75 µm)^3. We present the methodology for collecting multiple local tomographies with 360 degree extended field of view scans followed by locally non-rigid volumetric stitching. Applied to the lung, it allows to resolve the entire pulmonary structure from the trachea down to the parenchyma in a single dataset.

en: Micrometer-resolution X-ray tomographic imaging of a complete intact post mortem juvenile rat lung

en: PSI Data Catalog


en: The recently discovered superconducting nickelates are already looking quite different to their cousins, the cuprates. One big reason is the magnetic order. First, the undoped parent compound NdNiO2 appears to be non-magnetic, unlike the undoped cuprates, which are antiferromagnetic. Secondly, the hole-doped Nd1-xSrxNiO2 seems to host antiferromagnetic order as well as superconductivity and these coexisting phenomena are rare in hole-doped cuprates. Low energy muon spin relaxation provides the ideal tool to probe the magnetism in this new family of superconductors.

en: Determining the nature of the magnetism in infinite layer nickelate superconductors