辐射防护 ›› 2014, Vol. 34 ›› Issue (4): 193-198.

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秦山三期重水堆核电站流出物惰性气体133Xe和85Kr研究及监测改进

李厚文, 王斌   

  1. 中核核电运行管理有限公司,浙江 海盐 314300
  • 收稿日期:2013-10-23 出版日期:2014-07-20 发布日期:2025-01-10
  • 作者简介:李厚文(1967—),男,1992毕业于兰州大学原子核物理及核技术专业,2007年毕业于上海交通大学机械与动力工程学院,获工程硕士学位,研究员级高级工程师。E-mail: lihw@cnnp.com.cn

Study on Noble Gas 133Xe and 85Kr in Gaseous Effluent at TQNPP and its Monitoring

Li Houwen, Wang Bin   

  1. CNNC Nuclear Power Operations Management Co., Ltd., Zhejiang Haiyan 314300
  • Received:2013-10-23 Online:2014-07-20 Published:2025-01-10

摘要: 通过秦山三期CANDU6核电站惰性气体产生、转移与释放机理的分析,指出核电站放射性源项报告中惰性气体排放量计算方法产生偏差的原因,并进一步明阐明CANDU6核电站流出物中133Xe、85Kr与131mXe等主要惰性气体活度的定量关系。利用该研究结果,通过测量133Xe的活度来估算探测下限值很高的85Kr与131mXe活度,从而大大降低核电站惰性气体的统计排放量,这一方法也可应用于压水堆核电站。

关键词: 85Kr, 放射性惰性气体, 气态流出物, 破损燃料, 源项

Abstract: By analyzing the production, transfer and release mechanism of noble gas from the Third Qinshan Nuclear Power Plant (TQNPP) CANDU6 reactors, derived the origin of calculation errors for noble gas emissions in the radioactive source term report, and further set forth the quantitative relationship of major noble gas including133Xe, 85Kr and 131mXe in the effluent of CANDU6 reactors. Therefore, the estimation of 131mXe and 85Kr, which have much higher lower limit of detection, can beachieved by measuring the activity of 133Xeinstead, and thus greatly reduce nuclear statistics of noble gas emissions. This method is also applicable to PWR reactors.

Key words: 85Kr, radioactive noble gas, gaseous effluent, defective fuel, source term

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