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The effect of resonant magnetic perturbations on runaway electron transport in ITER

G Papp, M Drevlak, T Fülöp, G I Pokol2012年Plasma Physics and Controlled FusionIF 2.2出版社

In this paper the effect of resonant magnetic perturbations (RMPs) on the net radial transport of runaway electrons (REs) is calculated by simulating the RE drift orbits in magnetostatic perturbed fields. Through the transport, RMP influences the time dynamics and preferred loss directions of the REs, which are determined for different magnetic perturbation configurations. The distribution of the field mesh exit points of the REs become more localized compared with the unperturbed case, since the loss pattern depends on the geometric properties of the RMP configuration such as periodicity or helicity. On the other hand, the loss patterns do not depend on the particle energies and starting positions. The particle radial steps are correlated with the local radial magnetic perturbation component, which makes the transport chaotic, but deterministic.

日本語訳

本論文では、共鳴磁場摂動(RMP)が runaway電子(RE)の径方向輸送に及ぼす影響を、磁静摂動場中でのREドリフト軌道のシミュレーションにより計算する。この輸送を通じて、RMPはREの時間的ダイナミクスと優先的な損失方向に影響を及ぼし、これらは異なる磁場摂動配位に対して決定される。磁場摂動のメッシュ出口点の分布は、非摂動の場合と比較してより局在化する。これは、損失パターンがRMP配位の幾何学的特性(周期性やヘリシティなど)に依存するためである。一方、損失パターンは粒子エネルギーや初期位置には依存しない。粒子の径方向ステップは局所的な径方向磁場摂動成分と相関しており、これにより輸送はカオス的ではあるが決定的なものとなる。

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iter高精度(タイトル一致)

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ITERMagnetic perturbationResonant magnetic perturbationRunaway electronElectron transport
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