NDLI: Low energy dosimetry with photon counting pixel detectors such as Medipix

Content Provider	IEEE Xplore Digital Library
Author	Michel, T. Bohnel, M. Durst, J. Anton, G.
Copyright Year	2007
Description	Author affiliation: Friedrich-Alexander-Univ. Erlangen-Nurnberg, Erlangen (Michel, T.; Bohnel, M.; Durst, J.; Anton, G.)
Abstract	The use of a semiconductor photon counting pixel detector like the Medipix detector [1] [2] in a dosimeter offers the possibility to take the photon energy dependence of the personal dose equivalents especially in the low energy range below 50 keV into account. Furthermore the measuring range can be extended down to low photon energies of about 10 keV. In this contribution we restrict our considerations to the medical diagnostic energy range from 10 to 150 keV. Due to the fact that the sensitive area of the Medipix detector is relatively large with (1.41 $cm)^{2}$ while the sensitive area of one pixel is small with (55 $mum)^{2},$ it is able to measure very low dose rates with high statistical precision while still processing each photon even at high dose rates. In this contribution we explain a method to determine personal dose equivalents from photon counted data, present measurement results of the air-kerma for different X-ray qualities and show simulation results of the performance of a dosimeter based on a hybrid photon counting pixel detector. We outline the advantages and perspectives of using a photon counting pixel detector in a dosimeter.
Starting Page	2070
Ending Page	2073
File Size	129495
Page Count	4
File Format	PDF
ISBN	9781424409228
ISSN	10957863
DOI	10.1109/NSSMIC.2007.4436560
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dosimetry Detectors Optoelectronic and photonic sensors Event detection Energy measurement Silicon Charge carriers Electrodes Nuclear and plasma sciences Medical diagnosis dose equivalent Medipix dosimetry photon counting detector
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Low Energy Dosimetry With Photon Counting Pixel Detectors Such as Medipix

Correlated counting and energy resolving properties of photon counting X-ray detectors like the medipix detectors

Investigating the DQE of the Medipix detector using the multiplicity concept

First measurements of material reconstruction in X-ray imaging with the medipix2 detector

3D simulation of induced signals in the Medipix detector

Monte Carlo simulation of pixelated photon counting X-ray detectors like the Medipix2 and the Medipix3 using high-Z sensor materials

Comparison of simulated and measured energy response spectra for a Medipix2 detector using CdTe as sensor material

X-Ray Fluorescence Imaging With the Medipix2 Single-Photon Counting Detector

Charge collection from proton and alpha particle tracks in silicon pixel detector devices

Low energy dosimetry with photon counting pixel detectors such as Medipix

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Low Energy Dosimetry With Photon Counting Pixel Detectors Such as Medipix

Correlated counting and energy resolving properties of photon counting X-ray detectors like the medipix detectors

Investigating the DQE of the Medipix detector using the multiplicity concept

First measurements of material reconstruction in X-ray imaging with the medipix2 detector

3D simulation of induced signals in the Medipix detector

Monte Carlo simulation of pixelated photon counting X-ray detectors like the Medipix2 and the Medipix3 using high-Z sensor materials

Comparison of simulated and measured energy response spectra for a Medipix2 detector using CdTe as sensor material

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