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New experimental results on beam-plasma interaction in solenoids

A V Arzhannikov, A V Burdakov, V A Kapitonov, V S Koidan, V V Konyukhov, S V Lebedev, K I Mekler, V S Nikolaev, V V Postupaev, D D Ryutov1988年Plasma Physics and Controlled FusionIF 2.2出版社

New results are presented on studying the beam-plasma interaction and plasma heating dynamics at the INAR device. The specific features of the generation of 'hot' (E>approximately 1keV) plasma electrons containing the main part of the plasma energy are studied. In the case of a beam with a small initial angular spread, the 'hot' electrons are mainly generated near the point where the beam is injected into the plasma. Also reported are the results of the experiments in which the magnetic field in the beam-plasma interaction region was increased up to 70 kOe. In this case, at the plasma length of 75 cm, the total beam energy losses exceed 40%. The growth of the plasma energy content at higher magnetic field is observed. The first stage of the GOL-3 experiment is described which is aimed at the study of the plasma heating of a solenoid by a 100 kJ microsecond electron beam. This experimental device is ready for operation.

日本語訳

INAR装置におけるビーム・プラズマ相互作用とプラズマ加熱の研究に関する新しい結果が提示される。プラズマエネルギーの主要部分を含む「高温」(E>約1keV)プラズマ電子の生成の具体的な特徴が研究される。初期角度広がりが小さいビームの場合、「高温」電子は主にビームがプラズマへ入射する点の近傍で生成される。ビーム・プラズマ相互作用領域の磁場を70kOeまで増加させた実験結果も報告される。この場合、プラズマ長75cmにおいて、ビームの全エネルギー損失は40%を超える。より高い磁場におけるプラズマエネルギー含有量の増大が観察される。100kJマイクロ秒電子ビームによるソレノイドのプラズマ加熱を目的としたGOL-3実験の第一段階が記述される。この実験装置は運転準備が整っている。

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