摘要
氘(D)-氚(T)聚变是目前聚变研究的主要对象,也是未来最可能首先实现工程应用的聚变反应。氘氚聚变反应堆在消耗大量氚的同时,需要依靠锂-6增殖足够的氚来实现氚燃料自持。在国内,氚和浓缩锂-6都属于核材料,按照国家核材料管制条例要求,使用和生产核材料须建立核材料衡算系统。为此,本文针对液态包层聚变堆方案,简要归纳了聚变堆系统氚的物料流动和平衡特点,提出了聚变堆氚材料衡算系统的初步方案,包括平衡区划分、关键测量点设置、衡算测量方法和分析技术难题等。
Deuterium(D)-Tritium(T)fusion is a key object of fusion research and it is most likely to be the first to achieve application of fusion reactions.D-T fusion reactor consumes a large amount of tritium.Tritium is rare in nature.The tritium self-sufficiency depends on 6Li proliferation in the blanket.In China,both tritium and concentrated 6Li are nuclear materials.In order to meet the requirements of Nuclear Material Control Regu⁃lation issued by the State Council.To build a nuclear material accounting system is obligatory to use or product nuclear material.For this purpose,this paper shows a brief summary about characteristics of material flow of tritium with a classic fusion reactor.A preliminary scheme of the nuclear material accounting system is shown.It includes the division of the balance area of tritium,the setting of key measurement points and the selection of measurement methods.A method for measuring tritium based on lithium isotope mass spectrometry is also suggested to solve this problem.
作者
梅华平
魏世平
何梅生
Mei Huaping;Wei Shiping;He Meisheng(Institute of Nuclear Energy Safety Technology,Chinese Academy of Science,Hefei 230031,China)
出处
《核安全》
2021年第4期51-55,共5页
Nuclear Safety
基金
国家重点研发计划政府间国际科技创新合作专项磁约束核聚变能发展研究,项目编号:2017YFE0300305。
关键词
聚变堆
核材料衡算系统
氚
分析技术
fusion reactor
nuclear material accounting system
tritium
analytical technique
