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Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory

Simulations of cosmic ray muon induced background of an HPGe detector placed inside an anti-Compton shield on the surface and in shallow underground is described. Investigation of several model set-ups revealed some trends useful for design of low-level gamma-ray spectrometers. It has been found tha...

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Detalles Bibliográficos
Autores principales: Vojtyla, P, Povinec, P
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:http://cds.cern.ch/record/1112943
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author Vojtyla, P
Povinec, P
author_facet Vojtyla, P
Povinec, P
author_sort Vojtyla, P
collection CERN
description Simulations of cosmic ray muon induced background of an HPGe detector placed inside an anti-Compton shield on the surface and in shallow underground is described. Investigation of several model set-ups revealed some trends useful for design of low-level gamma-ray spectrometers. It has been found that background spectrum of an HPGe detector can be scaled down with the shielding depth. No important difference is observed when the same set-up of the anti-Compton spectrometer is positioned horizontally or vertically. A cosmic-muon rejection factor of at least 40 (at around 1 MeV) can be reached when the anti-Compton suppression is operational. The cosmicmuon background can be reduced to such a level that other background components prevail, like those from the residual contamination of the detector and shield materials and/or from radon, especially for the underground facilities.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
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spelling cern-11129432019-09-30T06:29:59Zhttp://cds.cern.ch/record/1112943engVojtyla, PPovinec, PMonte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratoryHealth Physics and Radiation EffectsSimulations of cosmic ray muon induced background of an HPGe detector placed inside an anti-Compton shield on the surface and in shallow underground is described. Investigation of several model set-ups revealed some trends useful for design of low-level gamma-ray spectrometers. It has been found that background spectrum of an HPGe detector can be scaled down with the shielding depth. No important difference is observed when the same set-up of the anti-Compton spectrometer is positioned horizontally or vertically. A cosmic-muon rejection factor of at least 40 (at around 1 MeV) can be reached when the anti-Compton suppression is operational. The cosmicmuon background can be reduced to such a level that other background components prevail, like those from the residual contamination of the detector and shield materials and/or from radon, especially for the underground facilities.CERN-SC-2005-004-IE-PPoai:cds.cern.ch:11129432005-06-20
spellingShingle Health Physics and Radiation Effects
Vojtyla, P
Povinec, P
Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory
title Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory
title_full Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory
title_fullStr Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory
title_full_unstemmed Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory
title_short Monte Carlo simulation of muon-induced background of an anti-Compton gamma-ray spectrometer placed in a surface and underground laboratory
title_sort monte carlo simulation of muon-induced background of an anti-compton gamma-ray spectrometer placed in a surface and underground laboratory
topic Health Physics and Radiation Effects
url http://cds.cern.ch/record/1112943
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AT povinecp montecarlosimulationofmuoninducedbackgroundofananticomptongammarayspectrometerplacedinasurfaceandundergroundlaboratory