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Spectroscopic Imaging with an X-ray Microscopy Setup Using a Pixelated Detector with Single Photon Processing
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (STC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (STC)ORCID iD: 0000-0002-8325-5177
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (Electronics design division)
Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs-Universität Freiburg, D-79104 Freiburg, Germany.
2009 (English)In: 2008 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2008 NSS/MIC), VOLS 1-9, New York: IEEE conference proceedings, 2009, 3464-3469 p., 4775083Conference paper, Published paper (Other academic)
Abstract [en]

Energy resolving X-ray imaging opens up new perspectives for applications within the fields of medical X-ray diagnosis and industrial X-ray quality control. Single photon processing X-ray imaging systems with a pixel size of 55 x 55 µm2 have been developed within the MEDIPIX collaboration. These systems show excellent images without any background noise. However the spectral properties of the device are deteriorated by significant charge sharing between neighbouring pixels. This is a main objective for the recently started development of the MEDIPIX3 readout chip with charge summing between neighbouring pixels. In order to study the effects of improved spectral resolution on image quality before the MEIDPIX3 chip is available we have developed a detector with a pixel size of 220 x 220 µm2 and connected it to a MEDIPIX2 readout chip, using only a limited number of the available pixels. Using larger pixels will improve the spectral resolution since a smaller fraction of the detected photons are subject to charge sharing. By placing this detector in the X-ray microscope and using a magnification of four times we can estimate the response of a detector with 55 x 55 µm2 pixels and good spectroscopic resolution.

Place, publisher, year, edition, pages
New York: IEEE conference proceedings, 2009. 3464-3469 p., 4775083
Keyword [en]
COUNTING MODE; READOUT CHIP; PERFORMANCE; WORKING
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-7620DOI: 10.1109/NSSMIC.2008.4775083ISI: 000268656001172Scopus ID: 2-s2.0-67649208980ISBN: 978-1-4244-2714-7 (print)OAI: oai:DiVA.org:miun-7620DiVA: diva2:127868
Conference
IEEE Nuclear Science Symposium/Medical Imaging Conference, Oct 19-25, 2008, Dresden, Germany
Projects
STC - Sensible Things that Communicate
Available from: 2008-12-11 Created: 2008-12-10 Last updated: 2016-09-26Bibliographically approved

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Norlin, BörjeFröjdh, ChristerThungström, Göran
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CiteExportLink to record
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Citation style
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