Estimation of neutron yields produced from SS316L, CuCrZr, and graphite targets for MeV-energy electrons toward JT-60 Tokamak fusion device

Estimation of neutron yields produced from SS316L, CuCrZr, and graphite targets of the mainly In-vessel components of a Tokamak fusion device for MeV-energy electrons has been performed by neutronics analysis using a 3D Monte Carlo code [PHITS], including an electron-gamma shower M.C. code [EGS 5]....

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Bibliographic Details
Published in:Fusion engineering and design 2018-11, Vol.136, p.1653-1657
Main Authors: Sukegawa, Atsuhiko M., Okuno, Koichi, Tanaka, Seiichiro
Format: Article
Language:English
Subjects:
Disruption
EGS5
PHITS
Photoneutron
Runaway electron
Tokamak
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Summary:Estimation of neutron yields produced from SS316L, CuCrZr, and graphite targets of the mainly In-vessel components of a Tokamak fusion device for MeV-energy electrons has been performed by neutronics analysis using a 3D Monte Carlo code [PHITS], including an electron-gamma shower M.C. code [EGS 5]. Neutronics analysis for Tokamak fusion devices is performed mainly with neutrons and photons using evaluated nuclear data libraries with energy up to 20 MeV energy. Furthermore, we have experience of photoneutron emission due to runaway electrons at several hydrogen discharges in Tokamak fusion device. The energy of the runaway electrons reaches at several tens of MeV energy. A 3D Monte Carlo code [PHITS + EGS5] suitable for electron and photon transport at energies greater than 20 MeV is very attractive for the photoneutron analysis of Tokamak fusion devices.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2018.07.008