NDLI: DPA damage analysis for 14-MeV neutrons on PFC materials

Content Provider	Springer Nature Link
Author	Lee, Bo young Kim, Hee soo Ko, Seung kook Kim, Dong woo Noh, Seung jung
Copyright Year	2015
Abstract	The dpa (displacement per atom) damage for 14-MeV neutron in a pfc materials was simulated using MCNPX/SPECTER code. The dpa values in the main components of the structural material SS316L, Fe, Cr and Ni, were calculated to analyze the effect of nuclear damage. According to the neutron wall load for ITER design base, a neutron flux of 3.5 × 10$^{13}$ neutrons/cm$^{2}$·sec was applied. The simulated dpa values were found to be as 3.0 dpa/fpy for Fe, 2.9 dpa/fpy for Cr and 3.1 dpa/fpy for Ni. For practical experiments, the simulated dpa values due to the irradiation damage of 17-MeV protons were found to be as 0.67 dpa at the peak and 0.05 at the surface for SS316L using by SRIM code at the same fluence. For the 17-MeV proton irradiation, the Bragg peak appears at a 0.64-mm depth. Also, SS316L specimens irradiated by a 17-MeV proton beam with a fluence of 10$^{16}$ protons/cm$^{2}$ were analyzed by using transmission electron microscopy.
Starting Page	1841
Ending Page	1844
Page Count	4
File Format	PDF
ISSN	03744884
Journal	Journal of the Korean Physical Society
Volume Number	66
Issue Number	12
e-ISSN	19768524
Language	English
Publisher	The Korean Physical Society
Publisher Date	2015-07-09
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical, Mathematical and Computational Physics fpy (full-power year) Bragg peak dpa (displacement per atom) pfc (plasma facing component) Physics Particle and Nuclear Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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