Effects of radiation on direct-drive laser fusion targets

被引：31

作者：

Colombant, DG ^{[1
]}

Bodner, SE

Schmitt, AJ

Klapisch, M

Gardner, JH

Aglitskiy, Y

Deniz, AV

Obenschain, SP

Pawley, CJ

Serlin, V

Weaver, JL

机构：

[1] USN, Div Plasma Phys, Res Lab, Washington, DC 20375 USA

[2] ARTEP Inc, Columbia, MD 20145 USA

[3] USN, Lab Computat Phys, Res Lab, Washington, DC 20375 USA

[4] SAIC, Mclean, VA 22310 USA

[5] USN, Div Opt Sci, Res Lab, Washington, DC 20375 USA

来源：

PHYSICS OF PLASMAS | 2000年 / 7卷 / 05期

关键词：

D O I：

10.1063/1.874026

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The role played by radiation in the radiation-preheated direct-drive laser fusion target design is discussed. The soft x-rays emitted during the foot of the laser pulse-at a few 10(12) W/cm(2)-preheat the low-opacity foam ablator which helps to control the Rayleigh-Taylor instability. The foam opacity is, however, thick enough to stop that radiation, keeping the fuel on a low adiabat. Radiation effects are also important in the blow-off corona of the target because they establish a long scale-length plasma. This may help to shield the ablation region from the nonuniformities in the laser absorption. (C) 2000 American Institute of Physics. [S1070-664X(00)92905-7].

引用

页码：2046 / 2054

页数：9

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