Plasma and Fusion Research

Volume 11, 2405089 (2016)

Regular Articles

ACT2: a High Heat Flux Test Facility Using Electron Beam for Fusion Application
Yukinori HAMAJI, Masayuki TOKITANI, Suguru MASUZAKI, Ryuichi SAKAMOTO, Hitoshi TAMURA and Akio SAGARA
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
(Received 30 November 2015 / Accepted 26 January 2016 / Published 10 June 2016)

Abstract

ACT2 (Active Cooling Teststand 2), a high heat flux test facility using electron beam has been upgraded from ACT facility and started the operation. A new electron gun enables the steady state and transient heat load on actively cooled samples. ACT2 can achieve large loaded area with steady state reactor relevant heat flux (∼ 20 MW/m2) up to 200 × 200 mm2 and simulation of edge localized modes with short pulse length (∼ 100 μs). Beam profile was obtained about 9 mm with graphite probes. The heat flux is obtained by water calorimetry and measurement of the current through the samples.

Keywords

plasma facing component, divertor, heat flux, edge localized mode, fatigue, electron beam, heat removal, active cooling

DOI: 10.1585/pfr.11.2405089

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