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High-energy kinetic theory of plasmas generated by both an electric field and a sustained particle beam. Application to laser plasmas

N Peyraud-Cuenca, P Faucher1994年Plasma Physics and Controlled FusionIF 2.2出版社

A kinetic model is proposed to investigate how application of a uniform external electric field can appreciably increase the 'tail' of the electron distribution function (EDF) in sustained particle-beam-generated plasmas. Such an increase is of interest in laser plasmas for the enhancement of the laser effect directly related to the 'tail' of the EDF through the branching ratios for energy deposition on excited states. Application is made to argon and we have obtained that, for the amplitude of the electric field commonly generated, the enhancement of the laser effect can be of the order of 15 per cent.

日本語訳

一様な外部電場の印加が、持続的な粒子ビーム生成プラズマにおける電子分布関数(EDF)の「テール」を著しく増加させ得ることを調べるために、運動論モデルが提案される。このような増加は、励起状態へのエネルギー付与の分岐比を通じてEDFの「テール」に直接関連するレーザー効果の増強のために、レーザープラズマにおいて重要である。アルゴンに適用され、一般的に生成される電場の振幅に対して、レーザー効果の増強は約15パーセントのオーダーとなり得ることが得られた。

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