Improvement of an electron beam facility as a heat source for disruption simulation experiments

To perform simulated plasma disruption experiments, a heat source which can provide fast rise and high heat flux on a target surface is required. An existing electron beam facility has been improved to provide higher heat fluxes uniformly over a wider area by installing a high speed beam rastering s...

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Bibliographic Details
Published in:Fusion engineering and design 1987, Vol.5 (2), p.215-220
Main Authors: Seki, Masahiro, Yamazaki, Seiichiro, Minato, Akio, Horie, Tomoyoshi, Tanaka, Yoshihisa, Tone, Tatsuzo
Format: Article
Language:English
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Summary:To perform simulated plasma disruption experiments, a heat source which can provide fast rise and high heat flux on a target surface is required. An existing electron beam facility has been improved to provide higher heat fluxes uniformly over a wider area by installing a high speed beam rastering system. The beam rastering coils can provide a beam oscillation angle of 4.4° with a frequency of up to 400 kHz. The high frequency ensures temporal uniformity of the heat flux on a test surface. Triangular wave shaped current is supplied to excite the coils to provide spatially uniform heat flux over a test surface. Using this electron beam facility, we can provide uniform heat fluxes as high at 160 MW/m 2 on an area of 13 mm × 13 mm, and 20 MW/m 2 on 38 m × 38 mm.
ISSN:0920-3796
1873-7196
DOI:10.1016/S0920-3796(87)90111-6