Irradiation uniformity of directly driven inertial confinement fusion targets in the context of the shock-ignition scheme

被引：19

作者：

Temporal, M. ^{[1
]}

Ramis, R. ^{[1
]}

Canaud, B. ^{[2
]}

Brandon, V. ^{[2
]}

Laffite, S. ^{[2
]}

Le Garrec, B. J. ^{[3
]}

机构：

[1] Univ Politecn Madrid, ETSIA, E-28040 Madrid, Spain

[2] CEA, DIF, DAM, F-91297 Arpajon, France

[3] CEA CESTA, F-33114 Le Barp, France

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2011年 / 53卷 / 12期

关键词：

LASER FUSION; COMPUTER CODE; PHYSICS BASIS; HIGH-GAIN; FACILITY;

D O I：

10.1088/0741-3335/53/12/124008

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：

In direct drive inertial confinement fusion (ICF) the uniformity of the irradiation of the capsule still represents a crucial issue. The quality of the capsule irradiation in the context of the shock-ignition (SI) scheme has been assessed numerically. Schemes characterized by different directions of irradiation associated with a single laser beam or a bundle of laser beams have been considered. Beam imperfections as power imbalance and pointing errors have been taken into account and show that the focal spot that minimizes the root-mean-square deviation depends on these beam imperfections. We discuss the advantages provided by laser facilities accounting for a large number (up to a few thousand) of beamlets. Preliminarily results concerning the use of the Laser-Megajoule facility associated with a SI scheme will be discussed.

引用

页数：10

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