中子照相技术应用于锆合金包壳氢含量分析的初步研究Preliminary Study on the Application of Neutron Photography to the Analysis of Hydrogen Content in Fuel Rod Cladding
刘晓光,汤琪,贺林峰,王华才,李玉庆,武梅梅,孙凯,焦学胜,魏国海,陈东风
摘要(Abstract)：
燃料棒锆合金包壳机械性能受氢含量的影响较大，由于中子与氢反应截面相对于锆合金基底要大得多，因此中子照相技术在锆合金氢含量定量分析中具有潜在应用价值。为将中子照相技术应用于锆合金含氢量定量分析中，本研究通过气相渗氢工艺获得具有不同氢含量的低锡Zr-4合金，并利用中国先进研究堆中子成像测试平台对样品进行中子成像，经过数据处理，获得了低锡Zr-4合金氢含量-灰度的定量关系，为中子照相技术应用于燃料棒包壳氢含量分析奠定了基础。
关键词(KeyWords)： 气相渗氢;中子照相;锆合金;氢含量
基金项目(Foundation):
作者(Author): 刘晓光,汤琪,贺林峰,王华才,李玉庆,武梅梅,孙凯,焦学胜,魏国海,陈东风
参考文献(References)：
- [1]Limback M,Dahlback M,Hallstadius L.,et al.Test reactor study of the phenomena involved in secondary fuel degradation[C].Proceedings of the 2004 International Meeting on LWR Fuel Performance,Orlando,Florida,2004
- [2]IAEA.Review of fuel failures in water cooled reactors[R].Vienna:IAEA,2010.
- [3]Mirco Grosse.Neutron Radiography:A Powerful Tool for Fast,Quantitative and Non-Destructive Determination of Hydrogen Concentration and Distribution in Zirconium Alloys,Zirconium in the Nuclear Industry:16th International Symposium[C],Philadelphia:ASTM,2015.
- [4]魏国海，韩松柏，陈东风，等.中子照相技术在核燃料元件无损检测中的应用[J].核技术，2012,35(11):821-826.
- [5]Aaron E Craft,Daniel M Wachs,Maria A,et al.Neutron Radiography of Irradiated Nuclear Fuel at Idaho National Laboratory[J].Physics Procedia,2015,69:483-490.
- [6]Grosse M,Roessger C,Stuckert J,et al.Neutron Imaging Investigations of the Secondary Hydriding of Nuclear Fuel Cladding Alloys during Loss of Coolant Accidents[J].Physics Procedia,2015,69:436-444.
- [7]Lehmann E H,Vontobel P,A Hermann.Non-destructive analysis of nuclear fuel by means of thermal and cold neutrons[J].Nuclear Instruments and Methods in Physics Research A,2003,515:745-759.
- [8]Grosse M,Lehmann E,P Vontobel,et al.Quantitative determination of absorbed hydrogen in oxidized zircaloy by means of neutron radiography[J].Nuclear Instruments and Methods in Physics Research A,2006,566:739-745.
- [9]Robert Zubler,Pavel Trtik,Johannes Bertsch,et al.High resolution neutron imaging of spent fuel cladding sections[C].56th Annual Meeting on Hot Laboratories and Remote Handling,Mamallapuram,2019.
- [10]孙勇.锆合金氢含量中子成像无损定量分析[R].北京：国家自然科学基金委员会，2018.
- [11]魏国海.压水堆乏燃料元件三维中子照相无损检测方法研究[R].北京：国家自然科学基金委员会，2018.
- [12]魏国海，韩松柏，贺林峰，等.核燃料元件模拟件的中子照相无损检测[J].核技术，2013,36(7):37-43.
- [13]曾文，邱日盛，栾佰峰，等.氢含量对再结晶Zr-Sn-Nb管材氢化物微观结构及取向的影响[J].稀有金属材料与工程，2019(5):1361-137