Integrated Modeling of Runaway Electron Beam Formation in JA DEMO Post-Disruption Plasmas

Yasuhiro YAMAMOTO; Akinobu MATSUYAMA; Youji SOMEYA; Weixi CHEN; Seiji MIYAMOTO; Yoshihide SHIBATA

doi:10.1585/pfr.18.1203064

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Integrated Modeling of Runaway Electron Beam Formation in JA DEMO Post-Disruption Plasmas

Yasuhiro YAMAMOTO, Akinobu MATSUYAMA, Youji SOMEYA, Weixi CHEN, Seiji MIYAMOTO, Yoshihide SHIBATA

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Keywords: disruption, runaway electron, integrated modeling, DEMO, Compton scattering

JOURNAL FREE ACCESS

2023 Volume 18 Pages 1203064

DOI https://doi.org/10.1585/pfr.18.1203064

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Abstract

The runaway electron (RE) beam formation in JA DEMO is simulated using the integrated disruption code INDEX. It is shown that the gamma-ray flux is comparable with that of the published results for ITER and the Compton scattering of gamma rays governs an irreducible minimum of the RE seed (~ 0.01 - 0.1 A), which can lead to multi-mega-ampere RE beams in the absence of significant radial transport of REs.

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