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ID 17780
file
title alternative
Background Reduction of Low Level Gamma-Ray Spectrometer
creator
Shizuma, Kiyoshi
Yokohata, Kenji
subject
Ge spectrometer
Shielding
Low-level radioactivity
Reduction factor
Background gamma ray
NDC
Mechanical engineering
abstract
A new low-background shielding was installed for a Ge detector. Background gamma-ray spectrum was measured and compared with that of old shielding to investigate how improved the background counting rate. Additional improvements for the new shielding was installed to reduce background counting rate. It has been shown that shielding of the neck part of Ge detector cryostat and concrete floor are effective to reduce background contribution. The reduction factor of ^<40>K 1461 keV gamma-ray was much improved from 51 of old shield to 4290 of new shield.
journal title
Graduate School of Engineering, Hiroshima University
volume
Volume 53
issue
Issue 1
start page
87
end page
93
date of issued
2004-12
publisher
広島大学大学院工学研究科
国立情報学研究所
issn
1347-7218
ncid
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Engineering
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