Polar-drive implosions on OMEGA and the National Ignition Facility

被引：26

作者：

Radha, P. B. ^{[1
]}

Marshall, F. J. ^{[1
]}

Marozas, J. A. ^{[1
]}

Shvydky, A. ^{[1
]}

Gabalski, I. ^{[1
]}

Boehly, T. R. ^{[1
]}

Collins, T. J. B. ^{[1
]}

Craxton, R. S. ^{[1
]}

Edgell, D. H. ^{[1
]}

Epstein, R. ^{[1
]}

Frenje, J. A. ^{[2
]}

Froula, D. H. ^{[1
]}

Goncharov, V. N. ^{[1
]}

Hohenberger, M. ^{[1
]}

McCrory, R. L. ^{[1
,3
,4
]}

McKenty, P. W. ^{[1
]}

Meyerhofer, D. D. ^{[1
,3
,4
]}

Petrasso, R. D. ^{[2
]}

Sangster, T. C. ^{[1
]}

Skupsky, S. ^{[1
]}

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

[2] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

[3] Univ Rochester, Dept Mech Engn, Rochester, NY 14623 USA

[4] Univ Rochester, Dept Phys, Rochester, NY 14623 USA

来源：

PHYSICS OF PLASMAS | 2013年 / 20卷 / 05期

关键词：

INERTIAL CONFINEMENT FUSION; LASER; SIMULATIONS;

D O I：

10.1063/1.4803083

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：

Polar-drive (PD) experiments on the OMEGA [Boehly et al., Opt. Commun. 133, 495 (1997)] laser are described. Continuous pulse shapes, where a low-power foot is followed by a rise to the main pulse, and triple-picket pulse shapes, where three pickets precede the main pulse, are used to irradiate warm plastic shell capsules. Both of these pulse shapes set the target on a low, ignition-relevant adiabat of similar to 3.5. The areal density is modeled very well in these implosions indicating that shock timing is well modeled in PD geometry. It is shown that the symmetry can be predictably varied by changing the beam pointings. Symmetry is also well reproduced across the two pulse shapes. Limitations of OMEGA experiments are discussed. Preliminary designs for PD implosion experiments on the NIF, with the goal of addressing ignition-relevant issues for PD, including symmetry are presented. (C) 2013 AIP Publishing LLC.

引用

页数：9

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