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.
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页数：10
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