News Archive

Welcome to the news archive for the TOMCAT beamline!

The complete news archive for the X-ray Tomography Group can be found here.

News

Datum
24 novembre 2020
Gianluca Iori at TOMCAT.

BEATS beamline scientist from SESAME synchrotron trains at TOMCAT

TOMCAT welcomes Gianluca Iori, beamline scientist from BEATS - the new beamline for tomography at the SESAME synchrotron in Jordan, to a 3-month training on beamline operations. Gianluca’s visit is part of the Staff Training (BEATS Work Package 2) organized for BEATS scientific staff and SESAME control engineers. BEATS is a European project, funded under the EU’s Horizon 2020 research and innovation programme and coordinated by the ESRF.

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16 novembre 2020

3 new Post Docs and 1 PhD student join TOMCAT

The X-ray Tomography group welcomes Stefan Gstöhl (Post-Doc), Maxim Polikarpov (Post-Doc), Margaux Schmeltz (Post-Doc) and Aleksandra Ivanovic (PhD Student) as new members. The group also thank everybody who helped making it possible for our Post-Docs and PhD student to join PSI amidst the challenges brought by the COVID-19 pandemic.

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2 octobre 2020
Algorithm protocol flowchart.

Automatic extraction of dynamic features from sub-second tomographic microscopy data

A fully automatized iterative reconstruction pipeline designed to reconstruct and segment dynamic processes within a static matrix has been developed at TOMCAT. The algorithm performance is demonstrated on dynamic fuel cell data where it enabled automatic extraction of liquid water dynamics from sub-second tomographic microscopy data. The work is published in Scientific Reports on 2 October 2020.

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1 août 2020

4 times compression factor for tomographic data feasible

In a recent study, TOMCAT has shown that lossy compression by a factor of at least 3 to 4 of raw acquisitions generally does not affect the reconstruction quality and that higher factors (six to eight times) can be achieved for tomographic volumes with a high signal-to-noise ratio as it is the case for phase-retrieved datasets. This finding is relevant to current challenges on large tomography data management and storage especially at synchrotron facilities. The results of this study was published in Journal of Synchrotron Radiation.

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1 avril 2020
Tensor tomography images of a crocodile tooth.

Rapid 3D directional small-angle scattering imaging achieved at TOMCAT

Researchers from the TOMCAT beamline have developed a small-angle scattering tensor tomography method to visualize microscopic features within a macroscopic field of view with unprecedented data acquisition speed. The results of the study were published in Applied Physics Letters on April 1, 2020.

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6 décembre 2019
Overview of the RECAST3D interface.

Towards dynamic feedback control during time-resolved CT at TOMCAT

Researchers from the CWI in Amsterdam and the TOMCAT beamline have developed and implemented a real-time CT reconstruction, visualisation, and on-the-fly analysis approach to monitor dynamic processes as they occur. With processes of  multiple sets of CT slices per second, this represents the next crucial step towards adaptive feedback control of time-resolved in situ tomographic experiments. The results of this study were published in Scientific Reports on December 5, 2019.

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30 mai 2019
TOMCAT high numerical aperture detector

High-numerical-aperture optics is key to ultra-fast tomographic microscopy

A novel high-numerical-aperture macroscope optics dedicated to high-temporal and high-spatial resolution X-ray tomographic microscopy is available at TOMCAT. Coupled with the in-house developed GigaFRoST camera, this highly efficient imaging setup enables tomographic microscopy studies at 20 Hz and beyond, opening up new possibilities in tomographic investigations of dynamic processes. A detailed characterization of the macroscope performance was published in Journal of Synchrotron Radiation on May 21, 2019.

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15 mai 2019
Multiscale image of a cardiac tissue.

From whole organ imaging down to single cell analysis

Researchers from the TOMCAT beamline, University College London (UCL), IDIBAPS and Universitat Pompeu Fabra (UPF) have developed a methodology that allows the multiscale analysis of the structural changes resulting from remodelling cardiovascular diseases, from whole organ down to single-cell level. This methodology has been published as an article in the journal Scientific Reports on May 6th 2019.

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1 février 2019
Matias Kagias

PSI Thesis Medal goes to Dr. Matias Kagias

The PSI Thesis Medal is awarded every second year to the best PhD thesis performed at the Paul Scherrer Institut. Matias received the prize for his excellent thesis entitled "Direct Self-Imaging Methods for X-ray Differential Phase and Scattering Imaging". Congratulations!

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