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Superthermal electrons in the TJ-IU torsatron

F Medina, L Rodríguez-Rodrigo, M A Ochando, F Castejón1998年Plasma Physics and Controlled FusionIF 2.2出版社

The generation and behaviour of superthermal electrons are studied as a function of magnetic configuration in the TJ-IU torsatron. Characterization of fast electrons is carried out with soft x-ray (SXR) and hard x-ray (HXR) diagnostic systems, covering the range from 0.4 keV to several MeV. The mean energies reached by the superthermal electron populations are found to be consistent with the occurrence of electron cyclotron (EC) off-axis absorption for the different radial magnetic field ripples at the axis. The interpretation of the experimental observations has been based on the influence of trapping factors at the magnetic axis and electron density profiles in the superthermal electron mean energy and density.

日本語訳

超熱電子の生成と挙動を、TJ-IUトルサトロンにおける磁場配位の関数として研究した。高速電子の特性評価は、0.4 keVから数MeVの範囲をカバーする軟X線(SXR)および硬X線(HXR)診断システムを用いて実施した。超熱電子集団が到達する平均エネルギーは、軸上の異なる半径方向磁場リップルに対する電子サイクロトロン(EC)オフアクシス吸収の発生と一致することが見出された。実験観測の解釈は、磁気軸における捕捉因子と、超熱電子の平均エネルギーおよび密度における電子密度分布の影響に基づいて行われた。

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Superthermal electrons
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