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Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak

M. Weiland, R. Bilato, B. Geiger, P.A. Schneider, G. Tardini, M. Garcia-Muñoz, F. Ryter, M. Salewski, H. Zohm, the ASDEX Upgrade Team2017年被引用 41Nuclear FusionIF 3出版社

Recent upgrades to the FIDA (fast-ion D-alpha) diagnostic at ASDEX Upgrade allow to reconstruct the fast-ion phase space at several radial positions with decent energy and pitch resolution. These new diagnostic capabilities are applied to study the physics of 2nd harmonic ion cyclotron heating, which is a foreseen heating scenario for ITER. In particular, the acceleration of deuterium beam ions above the injection energy by absorption of ion cyclotron waves at the 2nd harmonic is investigated and compared to theoretical predictions by the TORIC-SSFPQL and TORIC-NUBEAM code packages. Furthermore, comparisons to other fast-ion diagnostics (neutron yield and neutral particle analyzers) are discussed.

日本語訳

ASDEX UpgradeにおけるFIDA(高速イオンD-α)診断の最近の改良により、適切なエネルギーおよびピッチ分解能を持つ複数の半径位置での高速イオンの位相空間再構成が可能となった。これらの新しい診断能力は、ITERで予定されている加熱シナリオである第2高調波イオンサイクロトロン加熱の物理を研究するために適用される。特に、第2高調波でのイオンサイクロトロン波の吸収による注入エネルギー以上の重水素ビームイオンの加速が調査され、TORIC-SSFPQLおよびTORIC-NUBEAMコードパッケージによる理論的予測と比較される。さらに、他の高速イオン診断(中性子収量および中性粒子分析器)との比較についても議論される。

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asdex-upgrade高精度(タイトル一致)iter中精度(概要文一致)

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ASDEXASDEX UpgradeIon cyclotron heating
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