Plasma and Fusion Research

Volume 18, 1203064 (2023)

Rapid Communications

Integrated Modeling of Runaway Electron Beam Formation in JA DEMO Post-Disruption Plasmas
Yasuhiro YAMAMOTO, Akinobu MATSUYAMA, Youji SOMEYA, Weixi CHEN, Seiji MIYAMOTO1) and Yoshihide SHIBATA2)
National Institutes for Quantum Science and Technology, Rokkasho 039-3212, Japan
1)
Research Organization for Information Science and Technology, Tokai-mura, Ibaraki 319-1106, Japan
2)
National Institute of Technology Gifu College, Motosu, 501-0495, Japan
(Received 28 May 2023 / Accepted 18 June 2023 / Published 2 August 2023)

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.

Keywords

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

DOI: 10.1585/pfr.18.1203064

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