Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 310, Issue -, Pages 75-80Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2013.05.008
Keywords
SRIM code; dpa; Radiation dose
Categories
Funding
- Office of Fusion Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725]
- UT-Battelle, LLC
- U.S. Department of Energy Office of Nuclear Energy
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The SRIM (formerly TRIM) Monte Carlo simulation code is widely used to compute a number of parameters relevant to ion beam implantation and ion beam processing of materials. It also has the capability to compute a common radiation damage exposure unit known as atomic displacements per atom (dpa). Since dpa is a standard measure of primary radiation damage production, most researchers who employ ion beams as a tool for inducing radiation damage in materials use SRIM to determine the dpa associated with their irradiations. The use of SRIM for this purpose has been evaluated and comparisons have been made with an internationally-recognized standard definition of dpa, as well as more detailed atomistic simulations of atomic displacement cascades. Differences between the standard and SRIM-based dpa are discussed and recommendations for future usage of SRIM in radiation damage studies are made. In particular, it is recommended that when direct comparisons between ion and neutron data are intended, the Kinchin-Pease option of SRIM should be selected. (C) 2013 Elsevier B.V. All rights reserved.
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