Simulation and calibration of radiation monitoring of nuclear power plant containment sump waste liquid

被引：1
|
作者：
Li, Fei [1 ,2 ]
Luo, Chu -yang [1 ]
Wen, Ying-zi [1 ]
Lv, Sheng [1 ]
Zeng, Guo-qiang [1 ,2 ]
Liu, Xiao-hui [1 ,2 ]
Xiong, Chao [3 ]
机构：
[1] Chengdu Univ Technol, Coll Nucl Technol & Automat Engn, Chengdu 610059, Peoples R China
[2] Chengdu Univ Technol, Appl Nucl Technol Geosci Key Lab Sichuan Prov, Chengdu 610000, Peoples R China
[3] Neijiang Normal Univ, Data Recovery Key Lab Sichuan Prov, Neijiang 641100, Peoples R China
来源：
APPLIED RADIATION AND ISOTOPES | 2024年 / 208卷
基金：
中国国家自然科学基金;
关键词：
Waste liquid detection; Nuclide identification; Containment sump; WATER; DECONTAMINATION;
D O I：
10.1016/j.apradiso.2024.111311
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Waste liquid stored in the containment sumps of nuclear power plants may contain a variety of radionuclides. Real-time monitoring of containment sump waste liquid can ensure that accidents, such as leakage of cooling water, can be avoided. This paper presents the design of a radioactive monitoring system for waste liquid in a containment sump. The detector and the lead-shield in the measurement unit are optimized through Monte Carlo simulations. Experimental verification showed that the background count rate of the measurement chamber in the system was 418.3 cps, and the detection limit of the detection system was 3.01 Bq/L. Distinct gamma-ray characteristic peaks were also observable, demonstrating the system's ability to identify radioactive nuclides in the waste.
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页数：5
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