Monte-Carlo studies of radiation damage by fusion neutron in the first wall

Author

Gao, Xinghua ; Hou, Y.K. ; Pan, Z.Y. ; Shao, O.Y. ; Chen, J.X. ; Wu, S.M.

Author_Institution

Inst. of Plasma Phys., Acad. Sinica, Anhui, China

fYear

1991

fDate

30 Sep-3 Oct 1991

Firstpage

1060

Abstract

A Monte Carlo Neutron Transport Program, NTGM, and Neutron Radiation Damage Program, NRDGM, are presented for studying radiation damage of the first wall. The programs are applied to a static multicomponent amorphous target. With the average wall load of 1 MW/m ² the PKA (primary knock on atom) energy spectra (30 eV to 1 MeV), average displacement per atom rate (16.8 dpa/a), average helium and hydrogen production rates (204 appm/a and 623 appm/a) have been calculated for the first wall (type 316 stainless steel) using designed neutron spectra at the EHR (Experimental Hybrid Reactor) first wall. It is shown that the EHR´s radiation damage is more serious than that of a pure fusion reactor

Keywords

Monte Carlo methods; fusion reactor materials; fusion reactor theory and design; neutron effects; neutron transport theory; nuclear engineering computing; EHR; Experimental Hybrid Reactor; H; He; Monte Carlo Neutron Transport Program; Monte-Carlo studies; NRDGM; NTGM; Neutron Radiation Damage Program; PKA; average displacement; average wall load; energy spectra; first wall; fusion neutron; neutron spectra; primary knock on atom; production rates; pure fusion reactor; radiation damage; static multicomponent amorphous target; type 316 stainless steel; Amorphous materials; Atomic measurements; Fusion reactor design; Helium; Hydrogen; Inductors; Monte Carlo methods; Neutrons; Production; Steel;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0132-3

Type

conf

DOI

10.1109/FUSION.1991.218688

Filename

218688