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Experimental characterization of the PERCIVAL soft X-ray detector
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2016 (English)In: 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), Institute of Electrical and Electronics Engineers (IEEE) , 2016Conference paper, Published paper (Refereed)
Abstract [en]

Considerable interest has been manifested for the use of high-brilliance X-ray synchrotron sources and X-ray Free-Electron Lasers for the investigation of samples.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2016.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hig:diva-37243DOI: 10.1109/NSSMIC.2015.7581940ISBN: 9781467398626 OAI: oai:DiVA.org:hig-37243DiVA, id: diva2:1605391
Conference
2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego
Available from: 2021-10-22 Created: 2021-10-22 Last updated: 2021-10-25Bibliographically approved
In thesis
1. Advanced X-ray Detectors for Industrial and Environmental Applications
Open this publication in new window or tab >>Advanced X-ray Detectors for Industrial and Environmental Applications
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The new generation of X-ray free electron laser sources are capable of producing light beams with billion times higher peak brilliance than that of the best conventional X-ray sources. This advancement motivates the scientific community to push forward the detector technology to its limit, in order to de-sign photon detectors which can cope with the extreme flux generated by the free electron laser sources. Sophisticated ex-periments like deciphering the atomic details of viruses, filming chemical reactions or investigating the extreme states of matter require detectors with high frame rate, good spatial resolution, high dynamic range and large active sensor area. The PERCI-VAL monolithic active pixel sensor is being developed by an international group of scientists in collaboration to meet the aforementioned detector requirements within the energy rangeof 250 eV to 1 keV, with a quantum efficiency above 90%. In this doctoral research work, Monte Carlo algorithm based Geant4 and finite element method based Synopsys SentaurusTCAD toolkits have been used to simulate, respectively, theX-ray energy deposition and the charge sharing in PERCIVAL. Energydeposition per pixel and charge sharing between adjacent pixels at different energies have been investigated and presented. Novel methods for industrial and environmental applications of some commercially available X-ray detectors have been demonstrated. Quality inspection of paperboards by resolving the layer thicknesses and by investigating orientation of the cellulose fibres have been performed using spectroscopic and phase-contrast X-ray imaging. It was found that, using phase-contrast imaging it is possible to set burn-out like quality index on paperboards non-destructively. X-ray fluoroscopic measurements have been conducted in order to detect Cr inwater. This method can be used to detect Cr and other toxic elements in leachate in landfills and other waste dumping sites.

Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2016. p. 159
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 253
Keywords
Electrical Engineering, Electronic Engineering, Information Engineering, Elektroteknik och elektronik
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-37240 (URN)978-91-88025-84-5 (ISBN)
Available from: 2021-10-25 Created: 2021-10-22 Last updated: 2021-10-25Bibliographically approved

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Reza, Salim

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