Optimal Shape of a Gamma-ray Collimator: single vs double knife edge

Optimal Shape of a Gamma-ray Collimator: single vs double knife edge

Gamma-ray collimators in nuclear waste scanners are used for selecting a narrow vertical segment in activity measurements of waste vessels. The system that is used by NRG uses tapered slit collimators of both the single and double knife edge type. The properties of these collimators were investigate...

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Main Authors: Metz Albert, Hogenbirk Alfred
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201715307018
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spelling doaj-e57c70daa47c4a4bacb0159e42e0053d2021-08-02T05:40:52ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011530701810.1051/epjconf/201715307018epjconf_icrs2017_07018Optimal Shape of a Gamma-ray Collimator: single vs double knife edgeMetz Albert0Hogenbirk Alfred1NRG, Consultancy & ServicesNRG, Nuclear OperationsGamma-ray collimators in nuclear waste scanners are used for selecting a narrow vertical segment in activity measurements of waste vessels. The system that is used by NRG uses tapered slit collimators of both the single and double knife edge type. The properties of these collimators were investigated by means of Monte Carlo simulations. We found that single knife edge collimators are highly preferable for a conservative estimate of the activity of the waste vessels. These collimators show much less dependence on the angle of incidence of the radiation than double knife edge collimators. This conclusion also applies to cylindrical collimators of the single knife edge type, that are generally used in medical imaging spectroscopy.https://doi.org/10.1051/epjconf/201715307018
collection DOAJ
language English
format Article
sources DOAJ
author Metz Albert
Hogenbirk Alfred
spellingShingle Metz Albert
Hogenbirk Alfred
Optimal Shape of a Gamma-ray Collimator: single vs double knife edge
EPJ Web of Conferences
author_facet Metz Albert
Hogenbirk Alfred
author_sort Metz Albert
title Optimal Shape of a Gamma-ray Collimator: single vs double knife edge
title_short Optimal Shape of a Gamma-ray Collimator: single vs double knife edge
title_full Optimal Shape of a Gamma-ray Collimator: single vs double knife edge
title_fullStr Optimal Shape of a Gamma-ray Collimator: single vs double knife edge
title_full_unstemmed Optimal Shape of a Gamma-ray Collimator: single vs double knife edge
title_sort optimal shape of a gamma-ray collimator: single vs double knife edge
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2017-01-01
description Gamma-ray collimators in nuclear waste scanners are used for selecting a narrow vertical segment in activity measurements of waste vessels. The system that is used by NRG uses tapered slit collimators of both the single and double knife edge type. The properties of these collimators were investigated by means of Monte Carlo simulations. We found that single knife edge collimators are highly preferable for a conservative estimate of the activity of the waste vessels. These collimators show much less dependence on the angle of incidence of the radiation than double knife edge collimators. This conclusion also applies to cylindrical collimators of the single knife edge type, that are generally used in medical imaging spectroscopy.
url https://doi.org/10.1051/epjconf/201715307018
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AT hogenbirkalfred optimalshapeofagammaraycollimatorsinglevsdoubleknifeedge
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