原子与分子物理学报2017，Vol.34Issue(5)：942-948,7.DOI:10.3969/j.issn.1000-0364.2017.05.023
CuCrZr合金质子辐照效应的模拟研究
A simulation study of the proton radiation effects in CuCrZr alloy
摘要
Abstract
Simulation experiments were performed through tracking the motion of a large number of incident par-ticles to study the interaction between protons and CuCrZr alloy with the irradiation of 1~10 MeV proton based on the method of Mote Carlo. The impact of irradiation depth and proton energy on the alloy was considered re-spectively to calculate the condition of irradiation ability, energy loss, range, vacancy distribution and irradiation damage when tracking huge numbers of incident particles. Then, the failure mechanism of heat sink materials was analyzed under the simulated environment of fusion reaction to CuCrZr alloy. The results indicate that an ine-lastic collision occurs between CuCrZr alloy and protons, and the loss of energy is mainly due to ionization energy loss. Therefore, the CuCrZr alloy shows good antiradiation performance when the proton energy is between 1 MeV to 10MeV. The higher the alloy protons' energy increases, the deeper the protons' peak value becomes, analo-gous to the approximate exponential relationship. The peak depth value ranges from 2 μm to 250 μm. When the incident proton energy reaches MeV level,the sputtering yield could reduce to zero, so the CuCrZr alloy behave well to avoid the erosion. The vacancy' s quantity is linear with the energy of the incident protons, at the same time, the distribution of the vacancy and the protons stay in the alloy is synchronous. The proton damage effi-ciency presents Gauss distribution in the depth direction of the alloy. And the maximum damage is closely related to the depth of irradiation. With the increase of the energy of the incident proton, the maximum damage efficien-cy is decreasing.关键词
CuCrZr合金/辐照效应/模拟Key words
CuCrZr alloy/Irradiation effect/Simulation分类
数理科学引用本文复制引用
李克用,马瑞,苟富均,谢泉,任蕾..CuCrZr合金质子辐照效应的模拟研究[J].原子与分子物理学报,2017,34(5):942-948,7.基金项目
贵州省联合基金(黔科合LH[2014]7606) （黔科合LH[2014]7606）
贵州大学引进人才项目(贵大人基合字(2014)44号) （贵大人基合字(2014）
