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Title: On the Use of SRIM for Computing Radiation Damage Exposure

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.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [3] ;  [4]
  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Div.
  2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States). Nuclear Engineering and Radiological Sciences
  4. Radiation Effects Consulting, Richland, WA (United States)
Publication Date:
OSTI Identifier:
1132718
Report Number(s):
PNNL-SA--98405
Journal ID: ISSN 0168-583X; AF5810000; TRN: US1400374
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms; Journal Volume: 310
Publisher:
Elsevier
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY SRIM code; ; ATOMIC DISPLACEMENTS; RADIATION DOSES