用于核释热率测定的堆内量热计研究进展  

Research progress of in-pile calorimeter for measuring nuclear heating rate

作　　者：张俊新 张亮[2] 曲国峰 马天驰 任飞旭 彭星杰 韩纪锋 赵光[2] ZHANG Junxin;ZHANG Liang;QU Guofeng;MA Tianchi;REN Feixu;PENG Xingjie;HAN Jifeng;ZHAO Guang(Key Laboratory of Radiation Physics and Technology of the Ministry of Education,Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610065,China;Nuclear Power Institute of China,Chengdu 610005,China)

机构地区：[1]四川大学原子核科学技术研究所辐射物理及技术教育部重点实验室,成都610065 [2]中国核动力研究设计院,成都610005

出　　处：《核技术》2024年第7期1-14,共14页Nuclear Techniques

基　　金：四川大学-中国核动力研究设计院联合创新基金项目(No.SCU&DRSI-LHCX-36);中核集团青年英才项目(No.K301007041)资助。

摘　　要：核释热率是反应堆堆芯设计与辐照试验的关键参数,通常通过在反应堆实验孔道中进行实验测定的方法获得,基于量热法的堆内量热计是裂变反应堆内部核释热率测定的重要工具。本文综述了常见堆内量热计的工作原理,评述了国内外堆内量热计技术的现状和进展;对比了单模块量热计和多模块(差示)量热计的结构设计方法和性能特征,并介绍了代表量热计发展方向之一的多模态集成化测量装置设计方法。阐述了量热计堆内和堆外校准方法及其原理,分析了系数法、归零值法和附加电流法三种校准方法的优缺点,展望了堆内量热计的发展趋势和研究方向。The nuclear heating rate is a critical parameter for reactor core design and irradiation tests,it is typically determined via experimental measurements in a reactor experimental channel.In-pile calibration of calorimeter is an important method for measuring the nuclear heating rate in a fission reactor.This paper summarizes the working principle of the common in-pile calorimeter and reviews the current situation and research progress with regard to in-pile calorimetry employed worldwide.The structural design and performance characteristics of single-cell and multi-cell(differential)calorimeters are compared,and the design method of multimodal integrated measurement device,which represents one of development directions of calorimeters,is introduced.Moreover,the in-and out-pile calibration principles and application methods are described.The advantages and disadvantages of the calibration methods are analyzed,and the developing trend and direction for next-generation in-pile calorimeters are prospected.

关 键 词：量热法 核释热率 量热计 核反应堆 校准方法 

分 类 号：TL99[核科学技术—核技术及应用]