Abstract
Using energy method based on SRIM to calculate defect production is gradually becoming an international standard, which is crucial for quantitative comparison of radiation effects results obtained by different research groups. Several abnormal phenomena were shown and discussed when the displacements per atom (dpa) values were calculated by energy method with “Detailed calculation with Full Damage cascades” (F-C) mode. These phenomena include negative dpa values which are clearly contradicted physical meaning of dpa, vary with different ions and targets. Based on the SRIM simulation result data, a dpa calculation script was developed, which may facilitate the calculation of defect production.
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