阻氚涂层辐照-渗氢耦合装置的设计

Design of simultaneous proton irradiation-hydrogen permeation terminal for testing tritium permeation barrier coatings

摘要:

本文设计了一套用于阻氚涂层质子辐照与氢渗透耦合的实验装置，利用四川大学原子核科学技术研究所的2×3 MV 串列加速器来研究阻氚涂层(TPB)高温、辐照、渗氢性能. 详细介绍了该装置的总体设计目标和主要组成部分，如试样架、含氢渗透气体回路及设计原理. 利用该装置获取TPB涂料的相关数据，为今后利用质子原位辐照技术研究辐照对高温环境下氢气渗透性能的影响奠定了基础. 本文还对装置参数和试验参数的优化进行了探讨.

Abstract:

A terminal for the study of simultaneous proton irradiation and hydrogen gas permeation for testing tritium permeation barrier (TPB) coatings at elevated temperature has been developed. A set of special testing equipment was added to the 2×3 MV tandem accelerator in Sichuan University providing the capability to study the synergistic effect of displacement damage, hydrogen permeation, and high temperature on the microstructure and properties of the coatings. The overall design goal and some main components of this terminal were introduced in detail, such as sample holder, hydrogen-containing permeation gas loop and design principle. The terminal was developed in order to obtain relevant data on TPB coatings, and it will enable future studies into the effect of irradiation on hydrogen permeation property in high temperature environment using in situ proton irradiation. Furthermore, the optimization of the terminal and testing parameters were discussed in this study.