Multi-scale modeling of irradiation effects in spallation neutron source materials

T. Yoshiie, T. Ito, H. Iwase, Y. Kaneko, M. Kawai, I. Kishida, S. Kunieda, K. Sato, S. Shimakawa, F. Shimizu, S. Hashimoto, N. Hashimoto, T. Fukahori, Yukinobu Watanabe, Q. Xu, S. Ishino

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Changes in mechanical property of Ni under irradiation by 3 GeV protons were estimated by multi-scale modeling. The code consisted of four parts. The first part was based on the Particle and Heavy-Ion Transport code System (PHITS) code for nuclear reactions, and modeled the interactions between high energy protons and nuclei in the target. The second part covered atomic collisions by particles without nuclear reactions. Because the energy of the particles was high, subcascade analysis was employed. The direct formation of clusters and the number of mobile defects were estimated using molecular dynamics (MD) and kinetic Monte-Carlo (kMC) methods in each subcascade. The third part considered damage structural evolutions estimated by reaction kinetic analysis. The fourth part involved the estimation of mechanical property change using three-dimensional discrete dislocation dynamics (DDD). Using the above four part code, stress-strain curves for high energy proton irradiated Ni were obtained.

Original languageEnglish
Pages (from-to)1740-1743
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume269
Issue number14
DOIs
Publication statusPublished - Jul 15 2011

Fingerprint

Neutron sources
spallation
neutron sources
Protons
Nuclear reactions
Irradiation
irradiation
proton energy
nuclear reactions
Mechanical properties
mechanical properties
Stress-strain curves
Heavy ions
Reaction kinetics
atomic collisions
Molecular dynamics
Monte Carlo methods
Monte Carlo method
heavy ions
Defects

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Multi-scale modeling of irradiation effects in spallation neutron source materials. / Yoshiie, T.; Ito, T.; Iwase, H.; Kaneko, Y.; Kawai, M.; Kishida, I.; Kunieda, S.; Sato, K.; Shimakawa, S.; Shimizu, F.; Hashimoto, S.; Hashimoto, N.; Fukahori, T.; Watanabe, Yukinobu; Xu, Q.; Ishino, S.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 269, No. 14, 15.07.2011, p. 1740-1743.

Research output: Contribution to journalArticle

Yoshiie, T, Ito, T, Iwase, H, Kaneko, Y, Kawai, M, Kishida, I, Kunieda, S, Sato, K, Shimakawa, S, Shimizu, F, Hashimoto, S, Hashimoto, N, Fukahori, T, Watanabe, Y, Xu, Q & Ishino, S 2011, 'Multi-scale modeling of irradiation effects in spallation neutron source materials', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 269, no. 14, pp. 1740-1743. https://doi.org/10.1016/j.nimb.2010.11.076
Yoshiie, T. ; Ito, T. ; Iwase, H. ; Kaneko, Y. ; Kawai, M. ; Kishida, I. ; Kunieda, S. ; Sato, K. ; Shimakawa, S. ; Shimizu, F. ; Hashimoto, S. ; Hashimoto, N. ; Fukahori, T. ; Watanabe, Yukinobu ; Xu, Q. ; Ishino, S. / Multi-scale modeling of irradiation effects in spallation neutron source materials. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2011 ; Vol. 269, No. 14. pp. 1740-1743.
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