X-Ray Tomography Group
Prof. Stampanoni heads a group of over 20 people, including three staff scientists, two technicians, one controls engineer, and many postdocs and PhD students. The team focuses on the development of tools, both instrumentation and algorithms, for tomographic X-ray imaging, exploiting synchrotron and laboratory sources. The group is engaged in the design and construction of ultra-fast data acquisition systems (stroboscopic coherent X-ray radiology and tomography) to provide dynamic investigation of rapidly evolving systems. The group also intensively develops optimized applications for fast, concurrent post-processing of tomographic data starting from simple normalization corrections to ad-hoc reconstruction and artifact reductions algorithms. Finally, the group investigates, creates and optimizes novel imaging modalities based on the coherent properties of synchrotron radiation and works on the transition of such work to conventional x-ray sources.
Des chercheurs de l’Institut Paul Scherrer PSI ont mis au point une méthode de diffusion des rayons X aux petits angles qui peut être utilisée pour le développement ou le contrôle qualité de matériaux composites novateurs renforcés de fibres. Grâce à elle, les analyses de ces matériaux pourraient se faire à l’avenir non seulement par recours aux rayons X issus de sources puissantes comme la Source de Lumière Suisse SLS, mais aussi avec le rayonnement issu de tubes à rayons X conventionnels.
Researchers from the Helmholtz Zentrum Berlin (HZB) and the TOMCAT beamline have achieved a new world record in time-resolved tomography by measuring over 200 tomographies per second during heating of an evolving aluminium metal foam.
Une nouvelle méthode développée par des chercheurs du PSI permet d’améliorer encore les radiographies de matériaux. Pour ce faire, les chercheurs ont déplacé une lentille optique et réalisé chaque fois une image individuelle. A partir de là, ils ont calculé une image globale à l’aide d’algorithmes informatiques.
Synchrotron-based X-ray tomographic microscopy of melanophores (skin pigment cells) of an amazingly well preserved 180 million years old ichtyosaur (extinct marine reptile similar to whales) contributed in a multidisciplinary investigation to the new findings published today in Nature.
Jinqiu Xu will work with the team developing X-ray phase contrast CT for breast cancer diagnosis. Before coming to PSI, she worked on CT reconstruction from incomplete data at Capital Normal University (Beijing, China).
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!
Hector Dejea, a PhD at TOMCAT, received an Outstanding Poster Presentation Award at the 9th bioMedical Applications of Synchrotron Radiation (bMASR2018) conference held in Beijing (China) from October 23rd till 27th 2018. He presented the latest results of his work, entitled Multiscale X-ray Phase Contrast Imaging for Assessing Cardiac Remodelling: towards in-vitro applications.
The TOMCAT team in collaboration with scientists from CFEL, MaxIV and ESRF developed a method for hard X-ray multi-projection imaging, using a single crystal to split the beam into multiple beams with different directions.
The 13th International Conference on Synchrotron Radiation Instrumentation (SRI 2018) was hosted by the National Synchrotron Radiation Research Center (NSRRC) from June 10 to 15, 2018. The 5-day conference was gathering scientists and engineers around the world involved in development of new concepts, techniques, and instruments related to synchrotron radiation and free electron laser research.
After his PhD at the University of Jyväskylä in Finnland in image analysis, Arttu will be working on the stitching and segmentation of large datasets in the framework of the Human Brain Project.