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Fast electron propagation in high density plasmas created by shock wave compression

J J Santos, D Batani, P McKenna, S D Baton, F Dorchies, A Dubrouil, C Fourment, S Hulin, Ph Nicolaï, M Veltcheva2009年Plasma Physics and Controlled FusionIF 2.2出版社

We present one of the first results of relativistic laser intensities of the transport of fast electrons in high density and warm plasmas. The fast electrons are produced by the interaction of 40 J, 1 ps, 5 × 1019 W cm−2 laser pulses with solid foil targets. A 200 J, 1.5 ns laser focalized over a 500 µm diameter zone on the opposite side of the foil is used to create a shock propagating through and compressing the target to 2–3 times its solid density before the relativistic interaction. For both the solid and the compressed cases, the fast electron transport divergence and range are investigated, via the Kα emission from an embedded copper layer, for a conducting (aluminium) and an insulating (plastic) target material.

日本語訳

我々は、高密度かつ高温のプラズマ中における高速電子の輸送に関する、相対論的レーザー強度での最初の結果の一つを提示する。高速電子は、40 J、1 ps、5 × 10¹⁹ W cm⁻²のレーザーパルスと固体フォイルターゲットとの相互作用によって生成される。200 J、1.5 nsのレーザーをフォイルの反対側の500 µm径の領域に集光し、相対論的相互作用の前にターゲットを固体密度の2〜3倍まで圧縮する衝撃波を生成する。固体状態と圧縮状態の両方の場合について、埋め込まれた銅層からのKα放射を介して、導電性(アルミニウム)および絶縁性(プラスチック)のターゲット材料における高速電子の輸送の発散と到達範囲を調査する。

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Fusion Advanced Studies TorusShock waves
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