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Calculations on displacement damage and its related parameters for heavy ion bombardment in reactor materials

Technical Report:

Abstract

The depth distribution of displacement damage expressed in displacements per atom (DPA) in reactor materials such as Mo, Nb, V, Fe and Ni bombarded by energetic nitrogen, argon and self ions with incident energy below 2 MeV was calculated following the theory developed by Lindhard and co-workers for the partition of energy as an energetic ion slowing down. In this calculation, energy loss due to electron excitation was taken into account for the atomic collision cascade after the primary knock-on process. Some parameters indispensable for the calculation such as energy loss rate, damage efficiency, projected range and its straggling were tabulated as a function of incident ion energy of 20 keV to 2 MeV. The damage and parameters were also calculated for 2 MeV nickel ions bombarding Fe targets. In this case, the DPA value is of 40--75% overestimated in a calculation disregarding electronic energy loss for primary knock-on atoms. The formula proposed in this report is significant for calculations on displacement damage produced by heavy ion bombardment as a simulation of high fluence fast neutron damage.
Publication Date:
Apr 01, 1975
Product Type:
Technical Report
Report Number:
JAERI-M-6094
Reference Number:
AIX-07-243092; ERA-01-026131; EDB-76-075354
Subject:
36 MATERIALS SCIENCE; IRON; PHYSICAL RADIATION EFFECTS; MOLYBDENUM; NICKEL; NIOBIUM; VANADIUM; ATOM-ATOM COLLISIONS; CRYSTAL DEFECTS; ELECTRONS; ENERGY LOSSES; HEAVY IONS; ION BEAMS; KEV RANGE 10-100; KEV RANGE 100-1000; KNOCK-ON; MEV RANGE 01-10; RADIATION EFFECTS; RANGE; REACTOR MATERIALS; ATOM COLLISIONS; BEAMS; CHARGED PARTICLES; COLLISIONS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; IONS; KEV RANGE; LEPTONS; METALS; MEV RANGE; REFRACTORY METALS; TRANSITION ELEMENTS; 360106* - Metals & Alloys- Radiation Effects
OSTI ID:
7359055
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo
Country of Origin:
Japan
Language:
Japanese
Availability:
INIS
Submitting Site:
INIS
Size:
Pages: 39
Announcement Date:

Technical Report:

Citation Formats

Sone, K, and Shiraishi, K. Calculations on displacement damage and its related parameters for heavy ion bombardment in reactor materials. Japan: N. p., 1975. Web.
Sone, K, & Shiraishi, K. Calculations on displacement damage and its related parameters for heavy ion bombardment in reactor materials. Japan.
Sone, K, and Shiraishi, K. 1975. "Calculations on displacement damage and its related parameters for heavy ion bombardment in reactor materials." Japan.
@misc{etde_7359055,
title = {Calculations on displacement damage and its related parameters for heavy ion bombardment in reactor materials}
author = {Sone, K, and Shiraishi, K}
abstractNote = {The depth distribution of displacement damage expressed in displacements per atom (DPA) in reactor materials such as Mo, Nb, V, Fe and Ni bombarded by energetic nitrogen, argon and self ions with incident energy below 2 MeV was calculated following the theory developed by Lindhard and co-workers for the partition of energy as an energetic ion slowing down. In this calculation, energy loss due to electron excitation was taken into account for the atomic collision cascade after the primary knock-on process. Some parameters indispensable for the calculation such as energy loss rate, damage efficiency, projected range and its straggling were tabulated as a function of incident ion energy of 20 keV to 2 MeV. The damage and parameters were also calculated for 2 MeV nickel ions bombarding Fe targets. In this case, the DPA value is of 40--75% overestimated in a calculation disregarding electronic energy loss for primary knock-on atoms. The formula proposed in this report is significant for calculations on displacement damage produced by heavy ion bombardment as a simulation of high fluence fast neutron damage.}
place = {Japan}
year = {1975}
month = {Apr}
}