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

Appl Radiat Isot. 2024 Apr 1;208:111311. doi: 10.1016/j.apradiso.2024.111311. Online ahead of print.ABSTRACTWaste 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.PMID:38593592 | DOI:10.1016/j.apradiso.2024.111311

Source: Applied Radiation and Isotopes - April 9, 2024 Category: Radiology Authors: Fei Li Chu-Yang Luo Ying-Zi Wen Sheng Lv Guo-Qiang Zeng Xiao-Hui Liu Chao Xiong Source Type: research