α-Fe自身注入引起的损伤研究(英文)  

Radiation damage of α-Fe due to 27 keV self-implantation

作　　者：胡文祥[1] 张桂林[1] 刘联璠 王嘉华[1] 周慰囡[1] 

机构地区：[1]中国科学院上海原子核研究所

出　　处：《核技术》1989年第1期1-5,共5页Nuclear Techniques

摘　　要：用27keV的^(57)Fe离子注入金属铁箔,注入剂量在2×10^(16)到5×10^(16)个/cm^2之间。由内转换电子穆斯堡尔谱观察到存在三个铁原子位:未受扰动的α-Fe原子位、同一个空穴相连结的铁原子位、以及同二个或更多空穴相结合的铁原子位。据三种位的铁原子不同的退火行为,得到单空穴迁移的温度和能量分别为100℃和0.9eV左右,空穴的热释放能量大约为1.1eV。Pure iron foils were implanted with Fe ions of 27 keV at the range of doses from 2×1016 to 5×1016 ions/cm2. The damage structure was observed by CEMS. The results show that there are three sites: Fe atom without surrounding vacancy, Fe atom associated with one vacancy, and with two or more vacancies. The temperature and the migration energy of monovacancy were estimated to be about 100℃ and 0.9 eV, respectively. The vacancy thermal release energy was 1.1eV.

关 键 词：自身离子注入 注入损伤 Α-FE 空穴 

分 类 号：R14[医药卫生—公共卫生与预防医学]