ZHAO Yungang JIA Huaimao WANG Shilian LI Qi ZHANG Xinjun FAN Yuanqing CHEN Zhanying CHANG Yinzhong LIU Shujiang. The efficiency calibration for the β-γ coincidence system using 133Xe and 131mXe mixture[J]. Nuclear techniques, 2013, 36(3): 030203
ZHAO Yungang JIA Huaimao WANG Shilian LI Qi ZHANG Xinjun FAN Yuanqing CHEN Zhanying CHANG Yinzhong LIU Shujiang. The efficiency calibration for the β-γ coincidence system using 133Xe and 131mXe mixture[J]. Nuclear techniques, 2013, 36(3): 030203 DOI: 10.11889/j.0253-3219.2013.hjs.36.030203.
The efficiency calibration for the β-γ coincidence system using 133Xe and 131mXe mixture
Background: Being one of the sixteen radionuclide laboratories for CTBT
Beijing radionuclide laboratory studied the β-γ coincidence system to measure the activities of xenon isotopes(131mXe
133mXe
133Xe and 135Xe).The efficiency calibration is an important and difficult technique in the β-γ coincidence measurement.Purpose: The study is carried out to calibrate the efficiency for the β-γ coincidence system.Methods: The efficiency of the β(γ) particle can be calculate by the ratio of the coincidence counts/single γ(β) counts without knowing the sample activity.A 133Xe and131mXe mixture
whose activity is not known
is used to calibrate the efficiency.Results: The efficiency for the β-γ coincidence system is got by this method.Conclusions: The method has been used to calibrate the efficiencies of β-γ coincidence system in our laboratory.