Tritium Formation and Mitigation in High Temperature Reactors

Piyush Sabharwall ; Carl Stoots

关键词: High Temperature Reactor;    HTGR;    Molten Salt Reactor;    MSR;   

DOI  :  10.2172/1060976
RP-ID  :  INL/EXT-12-26758
PID  :  OSTI ID: 1060976

学科分类：工程和技术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Tritium is a radiologically active isotope of hydrogen. It is formed in nuclear reactors by neutron absorption and ternary fission events and can subsequently escape into the environment. In order to prevent the tritium contamination of proposed reactor buildings and surrounding sites, this paper examines the root causes and potential solutions for the production of this radionuclide, including materials selection and inert gas sparging. A model is presented that can be used to predict permeation rates of hydrogen through metallic alloys at temperatures from 450???750?��C. Results of the diffusion model are presented for one steadystate value of tritium production in the reactor.