辐射防护 ›› 2024, Vol. 44 ›› Issue (2): 134-140.

• 辐射防护监测 • 上一篇    下一篇

反应堆中子通量测量用裂变电离室探测装置研制

邱顺利1, 肖伟1, 董进诚1, 葛孟团1, 翟春荣2, 汤仲鸣2, 周宇琳1, 曾乐1, 刘海峰1, 孙光智1, 程辉1, 石先武2, 刘文臻2   

  1. 1.武汉第二船舶设计研究所,武汉 430205;
    2.国核自仪系统工程有限公司,上海 200233
  • 收稿日期:2022-12-19 出版日期:2024-03-20 发布日期:2024-04-19
  • 作者简介:邱顺利(1992—),男,2014年毕业于兰州大学核技术专业,2017年毕业于兰州大学核能与核技术工程专业,获硕士学位,工程师。E-mail: qsllzu2010@163.com
  • 基金资助:
    大型先进压水堆及高温气冷堆核电站国家科技重大专项(2019ZX06002012)。

Development of fission ionization chamber detector for reactor neutron flux measurement

QIU Shunli1, XIAO Wei1, DONG Jincheng1, GE Mengtuan1, ZHAI Chunrong2, TANG Zhongming2, ZHOU Yulin1, ZENG Le1, LIU Haifeng1, SUN Guangzhi1, CHENG Hui1, SHI Xianwu2, LIU Wenzhen2   

  1. 1. Wuhan Secondary Institute of Ships,Wuhan 430205;
    2. State Nuclear Power Automation System Engineering Company,Shanghai 200233
  • Received:2022-12-19 Online:2024-03-20 Published:2024-04-19

摘要: 为建立一套用于反应堆中子通量测量的监测装置,以实现核电站堆外核测量系统测量要求,研制了一种长灵敏区、宽量程、高灵敏度和强γ抑制能力的裂变电离室探测装置。同时对该裂变电离室探测装置的热中子灵敏度、高压坪特性、甄别特性和γ感应度等典型核性能指标进行了试验验证。试验结果表明,该裂变电离室综合性能能够满足AP1000系列核电站堆外核测量系统中间量程测量通道的应用需求。

关键词: 中子通量测量, 堆外核测系统, 裂变电离室, 高压坪特性, 热中子灵敏度

Abstract: In order to establish a monitoring device for reactor neutron flux measurement to meet the measurement requirements of ex-core nuclear measurement system, a fission ionization chamber detector with long sensitive region, wide range, high sensitivity and strong γ-suppression ability has been developed. At the same time, the thermal neutron sensitivity, high voltage plateau characteristic, screening threshold plateau characteristic and γ sensitivity of the fission ionization chamber detector are tested and verified. The test results show that the comprehensive performance of the fission ionization chamber can meet the application requirements of the intermediate range measurement channel for ex-core nuclear measurement system of the AP1000 series nuclear power plant.

Key words: neutron flux measurement, nuclear instrumentation system, fission ionization chamber, high-voltage saturation characteristics, thermal neutron sensitivity

中图分类号: 

  • TL81