MC法计算研究氢离子对钨的辐射损伤  

Calculation and Study of Radiation Damage of Tungsten by Hydrogen Ions Using MC Method

作　　者：张艳丽 曹中胜 王城 唐海川 ZHANG Yan-li;CAO Zhong-sheng;WANG Cheng;TANG Hai-chuan(Xichang University,Xichang Sichuan 615013,China;Engineering and Technical College of Chengdu University of Technology,Leshan Sichuan 614000,China)

机构地区：[1]西昌学院理学院,四川西昌615013 [2]成都理工大学工程技术学院,四川乐山614000

出　　处：《核电子学与探测技术》2025年第2期255-259,共5页Nuclear Electronics & Detection Technology

基　　金：西昌学院博士科研启动项目(015/117281540);凉山州科技计划重点研发项目(22ZDYF0190)资助。

摘　　要：本文基于蒙特卡罗(MC)法研究了氢离子(氘和氚)在钨中的能量损失、衰减、背散射、空位数、溅射率、射程等,旨在研究氢离子对钨材的初级辐射损伤。研究结果表明,氢离子对钨的辐射损伤主要是电离损伤,氢离子在钨中沉积呈现B ragg峰曲线分布,且峰在钨中的深度随入射能量增大而增大,氢离子背散射几率随入射能量增大而减小,在钨中形成的空位数随入射能量增大而线性增大,且在相同能量条件下,氚大于氘。溅射率在入射能量为1keV-100 keV时较大。氢离子对钨的辐射损伤均集中在表层。此结果对钨材作为聚变堆第一壁材料的辐射损伤研究具有一定的参考价值。The energy loss,decay,backscattering,vacancy number,sputtering rate,and range of hydrogen ions(deuterium and tritium)in tungsten were studied based on the MC method,so that the primary radiation damage of hydrogen ions on tungsten materials is investigated.The research results indicate that the radiation damage of hydrogen ions to tungsten is mainly ionization damage.The deposition of hydrogen ions in tungsten exhibits a Bragg peak curve distribution,and the depth of the peak in tungsten increases with the increase of incident energy.The backscattering probability of hydrogen ions decreases with the increase of incident energy.The number of vacancies formed by hydrogen ions in tungsten increases linearly with the increase of incident energy,and under the same energy conditions,tritium’s is greater than deuterium’s.The sputtering rate is relatively high in the incident energy range of 1keV-100 keV.The radiation damage of hydrogen ions to tungsten is mainly concentrated on the surface of tungsten.This study has an certain reference value in the application of tungsten for the first wall materials.

关 键 词：第一壁材料 钨 辐射损伤 蒙特卡罗方法 

分 类 号：TL99[核科学技术—核技术及应用]