Natural Background in Ge(Li) Spectrometers

The natural background activity of a Ge(Li) spectrometer was measured and background reduction was evaluated. Twenty lines were observed in the energy spectrum, extending from 20 to 1000 keV. Background reduction, achieved by shielding geometry improvements for low energy photon spectrometer, is pre...

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Bibliographic Details
Published in:Instrumentation science & technology 1997-11, Vol.25 (4), p.335-343
Main Authors: Durak, Ridvan, Erzeneoĝlu, Salih, Kurucu, Yakup, Şahin, Yusuf
Format: Article
Language:English
Subjects:
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
X- and γ-ray instruments and techniques
X- and γ-ray spectrometers
X-ray and γ-ray spectrometers
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Summary:The natural background activity of a Ge(Li) spectrometer was measured and background reduction was evaluated. Twenty lines were observed in the energy spectrum, extending from 20 to 1000 keV. Background reduction, achieved by shielding geometry improvements for low energy photon spectrometer, is presented. Continuum counting rate for 13 % relative-efficiency Ge(Li) detector decreased from 4.9 c/min keV at 120 keV to less than 0.1 c/min keV at 900 keV in a 50 mm lead shield.
ISSN:1073-9149
1525-6030
DOI:10.1080/10739149709351476