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People

Mats Danielsson, Professor

Mats Danielsson received his MSc in Engineering Physics from KTH Royal Institute of Technology in Stockholm, Sweden in 1990. From then until 1996 he pursued research with the CPLEAR experiment at CERN, the European Facility for Nuclear Research in Geneva, Switzerland. He received his Ph.D. 1996 with the thesis titled First Direct Measurement of T-violation, based on the first direct measurement of violation of the Time symmetry. From 1996 to 1998 Mats Danielsson worked as a postdoc at Lawrence Berkeley National Laboratory, Berkeley, USA on research in detectors and integrated electronics for x-ray imaging in David Nygren’s group. In 1999 he co-founded Mamea Imaging AB and was the president for the company until 2004 when the first photon counting mammography system was CE approved and in use in several mammography departments. The company was sold to Sectra AB and later to Philips and Microdose mammography is today installed in over 40 countries. Togeher with Prof Anders Brahme Mats Danielsson later invented a new detector for portal imaging and verification of radiation therapy and co-founded C-RAD AB that is currently listed on the Stockholm NASDAQ OMX.  Mats Danielsson is currently sharing his time between KTH and Prismatic Sensors AB, a company commercializing a new technology for photon counting CT, based on research performed in the group. Mats Danielsson holds around 30 patents and is co-author of over 130 scientific articles in journals such as Nuclear Instruments and Methods, IEEE Transactions on Medical Imaging, Medical Physics, Physics Letter and Nature. He was twice chairman for the Imaging conference at the Royal Swedish Academy of Science sponsored by the Nobel Institute for Physics.

Alma Eguizabal, Postdoc

Alma joined the group in 2019 as a postdoctoral researcher after her PhD at the University of Paderborn, Germany, where she developed image processing algorithms for medical imaging. Her research focus is CT-reconstruction with Deep Learning. An essential part of her research is to handle the non-linearity, multi-dimensionality and other particular properties of photon-counting spectral-CT imaging with Deep Learning.

Fredrik Grönberg, PhD student

I joined the group in 2014 after having received my MSc in Engineering Physics from the Royal Institute of Technology in Stockholm with a thesis entitled Crowd Control of Nonlinear Systems. I spent the first year of my master's degree program in the track of applied mathematics at Ecole Polytechnique in Paris. My interests include control and estimation problems and my research is focused on reconstruction methods for photon counting spectral computed tomography.

Mats Persson, Assistant Professor

Mats Persson received his MSc in Engineering Physics in 2011 and his PhD in Physics in 2016, both from KTH Royal Institute of Technology in Stockholm. His PhD work, within the Physics of Medical Imaging Division at KTH Department of Physics, was centered on photon-counting spectral CT imaging with a photon-counting silicon strip detector. After spending three years as a postdoctoral researcher at Stanford University and at General Electric Research Center, he returned to KTH in 2020 where he is now an Assistant Professor of Physics. His research interests is focused on image reconstruction and mathematical performance modeling for photon-counting spectral CT. More information about his research can be found on his personal webpage

Christel Sundberg, PhD student

I joined the group in 2017 to write my diploma thesis with the title Signal to Noise Optimization in Front-End Electronics for X-ray Imaging. After receiving my MSc in Engineering Physics from the Royal Institute of Technology in Stockholm the same year I continued in the group as a PhD student. My current research is focused on simulations of silicon photon-counting detectors.

 

Past Sabbaticals in our Group

Professor Aldo Badano, FDA, Washington, USA

Professor Robert Nishikawa, University of Pittsburg, USA

Professor David Nygren, LBNL, Berkeley, USA