RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
Anticoincidence Shielding for a Well-type Ge Detector to Reduce Cosmic-ray Background
Kiyoshi SHIZUMAKenji FUKAMIKazuo IWATANIHiromi HASAI
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1991 Volume 40 Issue 6 Pages 248-251

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Abstract

An anticoincidence shielding has been developed for a low-background well-type Ge detector. The detector in a heavy lead shielding was surrounded by plastic scintillators to reduce background produced by cosmic rays. Background counting rate in the energy range 40 keV to 3 MeV was reduced to 1/2.2 at anticoincidence mode. An example of low-level γ spectrometry utilizing this detector assembly is given.

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© Japan Radioisotope Association
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