水体γ放射性测量中高纯锗探测效率刻度

doi:10.11889/j.0253-3219.2017.hjs.40.120402

Nuclear Techniques ›› 2017, Vol. 40 ›› Issue (12): 120402-120402.doi: 10.11889/j.0253-3219.2017.hjs.40.120402

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles Next Articles

Efficiency calibration of HPGe detector used in water γ radioactivity measurement

ZENG Guoqiang¹, ZHU Zhu¹, GE Liangquan¹, LUO Mingtao¹, YU Peng¹, YANG Jian¹, YAN Lei¹, LAI Maolin¹, GUO Shengliang²

1 Key Laboratory of Applied Nuclear Techniques in Geosciences of Sichuan Province, Chengdu University of Technology, Chengdu 610059, China;
2 Chengdu New Nuclear Tyco Technology Co., Ltd., Chengdu 610052, China

Received:2017-08-28 Revised:2017-10-21 Online:2017-12-10 Published:2017-12-08
Supported by:
Supported by National Natural Science Foundation of China (No.41474159), National Key R & D Projects (No.2017YFC0602100), Sichuan Science and Technology Project (No.2017GZ0390)

Abstract

Abstract: Background: To obtain the activity of nuclide in the radioactive measurement of water, it is necessary to know the detection efficiency of nuclide which may be influenced by many factors. Purpose: It is of great practical significance to carry out the efficiency scale of high purity germanium detection device. The high purity germanium detection device selected is based on a real-time on-line monitoring system for the radioactivity of water bodies. Methods: The water samples in the monitored waters were sampled into the low-lead lead rooms, and the radionuclides in water were detected by high purity germanium detectors. The ⁴⁰K liquid source with a specific activity was prepared using KCl. The γ spectrum was measured and the detection efficiency of ⁴⁰K was calculated. At the same time, the whole water body monitoring system was modeled and calculated according to the specific parameters given by the manufacturers. The energy efficiency of the γ ray in the range of 59.5-2 614.7 keV was simulated and the efficiency curve was obtained. Results: The deviation of detection efficiency of ⁴⁰K is found to be 0.018% between the simulation and experimental results. Conclusion: The results verify the feasibility and accuracy of Monte Carlo method in simulating the efficiency scale of high purity germanium detection devices.

Key words: HPGe detector, Detection efficiency, Efficiency scale, Monte Carlo method

CLC Number:

ZENG Guoqiang, ZHU Zhu, GE Liangquan, LUO Mingtao, YU Peng, YANG Jian, YAN Lei, LAI Maolin, GUO Shengliang. Efficiency calibration of HPGe detector used in water γ radioactivity measurement[J].Nuclear Techniques, 2017, 40(12): 120402-120402.

References

1 朱文凯, 陈军, 熊建平, 等. ISOCS 系统无源效率刻度测量方法的准确性检验[J]. 核电子学与探测技术, 2005, 25(3):287-290. ZHU Wenkai, CHEN Jun, XIONG Jianping, et al. Accumulation test of the measurement method of passive efficiency of ISOCS system[J]. Nuclear Electronics and Detection Technology, 2005, 25(3):287-290.
2 唐碧华. γ 射线探测效率及响应函数的蒙特卡罗方法研究[D]. 成都:四川大学, 2006. TANG Bihua. Study on Monte Carlo method for γ ray detection efficiency and response function[D]. Chengdu:Sichuan University, 2006.
3 罗奇, 胡世鹏, 孙慧斌, 等. 高纯锗探测器的效率曲线和符合因子计算[J]. 核技术, 2011, 34(12):901-904. LUO Qi, HU Shipeng, SUN Huibin, et al. Efficiency curve and coincidence factor calculation of high purity germanium detector[J]. Nuclear Techniques, 2011, 34(12):901-904.
4 张斌全, 马吉增, 程建平, 等. 蒙特卡罗方法计算用于低能光子测量的高纯锗探测器的效率[J]. 核电子学与探测技术, 2005, 25(3):274-277. ZHANG Binquan, MA Jizeng, CHENG Jianping, et al. Monte Carlo method is used to calculate the efficiency of high purity germanium detectors for low energy photon measurements[J]. Nuclear Electronics and Detection Technology, 2005, 25(3):274-277.
5 张小林, 于功硕, 李元景, 等. HPGe探测器对圆形面源探测效率的研究[J]. 核技术, 2014, 37(7):070404. DOI:10.11889/j.0253-3219.2014.hjs.37.070404. ZHANG Xiaolin, YU Gongshuo, LI Yuanjing, et al. Study on detection efficiency of circular surface source by HPGe detector[J]. Nuclear Techniques, 2014, 37(7):070404. DOI:10.11889/j.0253-3219.2014.hjs.37.070404.
6 杨会丽, 陈杰. ORTEC GEM70P4-95 P 型高纯锗 γ 谱仪的标定[J]. 核技术, 2012, 35(11):854-858. YANG Huili, CHEN Jie. Calibration of GEMECP1GE-4 P-type high-purity germanium spectrometer[J]. Nuclear Techniques, 2012, 35(11):854-858.
7 吴祥余. 不同尺寸 γ 射线探测器响应函数及探测效率的蒙特卡罗模拟[D]. 成都:成都理工大学, 2009. WU Xiangyu. Monte Carlo simulation of response function and detection efficiency of γ ray detectors with different sizes[D]. Chengdu:Chengdu University of Technology, 2009.
8 Karamanis D, Lacoste V, Andriamonje S, et al. Experimental and simulated efficiency of a HPGe detector with point-like and extended sources[J]. Nuclear Instruments and Methods in Physics Research, 2002, A487:477-487.
9 Saraiva A, Oliveira C, Reis M, et al. Study of the response of an ORTEC GMX45 HPGe detector with a multiradio nuclide volume source using Monte Carlo simulations[J]. Applied Radiation and Isotopes, 2016, 113:47-52.

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Efficiency calibration of HPGe detector used in water γ radioactivity measurement

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