TY - JOUR
T1 - Measuring xenon activity by HPGe gamma spectrometry using efficiency function of point sources
AU - Tian, Zining
AU - Ouyang, Xiaoping
AU - Huang, Xiongliang
AU - Zhou, Chongyang
AU - Zhang, Yang
AU - Shen, Maoquan
AU - Yang, Xiaoyan
PY - 2011/11
Y1 - 2011/11
N2 - Using a HPGe system, γ-ray detection efficiency of 241Am, 137Cs and 60Co in mixed point sources places at different radius positions in empty sample boxes of different heights were obtained. The peak efficiency function parameters of the point sources were determined by least-squares fitting method. The 81.0, 160.6, 163.9, 233.2, 249.8, 526.6 keV γ-ray detection efficiencies of 063.50 mm × 16.66 mm xenon samples were obtained by numerical integration. This method was used to calculate activity of collected xenon samples. The results were, compared with those by Monte Carlo simulation and β-γ energy coincidence measurement, and the deviation were within 7%.
AB - Using a HPGe system, γ-ray detection efficiency of 241Am, 137Cs and 60Co in mixed point sources places at different radius positions in empty sample boxes of different heights were obtained. The peak efficiency function parameters of the point sources were determined by least-squares fitting method. The 81.0, 160.6, 163.9, 233.2, 249.8, 526.6 keV γ-ray detection efficiencies of 063.50 mm × 16.66 mm xenon samples were obtained by numerical integration. This method was used to calculate activity of collected xenon samples. The results were, compared with those by Monte Carlo simulation and β-γ energy coincidence measurement, and the deviation were within 7%.
KW - Full-energy peak efficiency
KW - Gaseous sample
KW - Point source efficiency function
KW - Xenon
UR - https://www.scopus.com/pages/publications/82255181628
M3 - 文章
AN - SCOPUS:82255181628
SN - 0253-3219
VL - 34
SP - 832
EP - 836
JO - He Jishu/Nuclear Techniques
JF - He Jishu/Nuclear Techniques
IS - 11
ER -