Han Rongdian Weng Huimin Xu Jihua Guo Xuezhe. Investigation of N ion induced defects in metal Ni with slow positron beam[J]. Nuclear techniques, 1993, (8): 449-453.
Han Rongdian Weng Huimin Xu Jihua Guo Xuezhe. Investigation of N ion induced defects in metal Ni with slow positron beam[J]. Nuclear techniques, 1993, (8): 449-453.DOI:
The defect distribution in Ni was studied using a slow positron beam after N+ions implantation with energy of 95 keV and dose of 6.4×1017/cm2. The positron diffusion parameter in defect- free Ni was derived to be Eo= 4.6 ±0.6keV. It was found that defects in the sample existed from surface to the depth of 190nm and the largest defect density was in the region from 27nm to 110nm. This result is in agreement with that of Monte Carlo simulation calculation.