Characterisation of the PSI whole body counter by radiographic imaging.

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It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
Serval ID
serval:BIB_BF9E6A7D5B21
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Characterisation of the PSI whole body counter by radiographic imaging.
Journal
Radiation Protection Dosimetry
Author(s)
Mayer S., Boschung M., Meier K., Laedermann J.P., Bochud F.O.
ISSN
1742-3406 (Electronic)
ISSN-L
0144-8420
Publication state
Published
Issued date
2011
Volume
144
Number
1-4
Pages
398-401
Language
english
Abstract
A joint project between the Paul Scherrer Institut (PSI) and the Institute of Radiation Physics was initiated to characterise the PSI whole body counter in detail through measurements and Monte Carlo simulation. Accurate knowledge of the detector geometry is essential for reliable simulations of human body phantoms filled with known activity concentrations. Unfortunately, the technical drawings provided by the manufacturer are often not detailed enough and sometimes the specifications do not agree with the actual set-up. Therefore, the exact detector geometry and the position of the detector crystal inside the housing were determined through radiographic images. X-rays were used to analyse the structure of the detector, and (60)Co radiography was employed to measure the core of the germanium crystal. Moreover, the precise axial alignment of the detector within its housing was determined through a series of radiographic images with different incident angles. The hence obtained information enables us to optimise the Monte Carlo geometry model and to perform much more accurate and reliable simulations.
Pubmed
Web of science
Open Access
Yes
Create date
26/04/2011 14:47
Last modification date
01/10/2019 7:19
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