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Title Radiation Damage Calculation in PHITS and Benchmarking Experiment for Cryogenic-Sample High-Energy Proton Irradiation
  • Y. Iwamoto, D. Satoh
    JAEA, Ibaraki-ken, Japan
  • Y. Ishi, Y. Kuriyama, T. Uesugi, H. Yashima, T. Yoshiie
    Kyoto University, Research Reactor Institute, Osaka, Japan
  • H. Matsuda, S.I. Meigo
    JAEA/J-PARC, Tokai-mura, Japan
  • T. Nakamoto
    KEK, Ibaraki, Japan
  • K. Niita
    Research Organization for Information Science & Technology, Ibaraki, Japan
  • R.M. Ronningen
    FRIB, East Lansing, Michigan, USA
  • T. Shima
    RCNP, Osaka, Japan
Abstract The radiation damage model in the Particle and Heavy Ion Transport code System (PHITS) has been developed using the screened Coulomb scattering to evaluate the energy of the target Primary Knock on Atom (PKA) created by the projectile and the secondary particles which include all particles created from the sequential nuclear reactions. For the high-energy proton incident reactions, a target PKA created by the secondary particles was more dominant than a target PKA created by the projectile. To validate prediction of DPA values in metals irradiated by >100 MeV protons, we developed a proton irradiation device with a Gifford-McMahon (GM) cryocooler to cryogenically cool wire samples. By using this device, the defect-induced electrical resistivity changes related to the DPA cross section of copper and aluminum were measured under irradiation with 125 and 200 MeV protons at cryogenic temperature. A comparison of the experimental DPA cross sections with the calculated results indicates that the athermal-recombination-corrected displacement damage (arc-dpa) provide better quantitative descriptions of the DPA cross section than NRT-dpa without defect production efficiencies.
Funding The experimental study was supported by JSPS KAKENHI, Grant Number JP 16H04638 and 25820450. The calculation work was supported in part by the US National Science Foundation under grant PHY06-06007.
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Conference HB2018, Daejeon, Korea
Series ICFA Advanced Beam Dynamics Workshop (61st)
Proceedings Link to full HB2018 Proccedings
Session WG-E
Date 19-Jun-18   16:00–18:00
Main Classification Beam Instruments and Interactions
Keywords proton, radiation, target, experiment, scattering
Publisher JACoW Publishing, Geneva, Switzerland
Editors Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-202-8
Published July 2018
Copyright © 2018 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
cc Creative Commons Attribution 3.0