Capsule implosion optimization during the indirect-drive National Ignition Campaign

被引：140

作者：

Landen, O. L. ^{[1
]}

Edwards, J. ^{[1
]}

Haan, S. W. ^{[1
]}

Robey, H. F. ^{[1
]}

Milovich, J. ^{[1
]}

Spears, B. K. ^{[1
]}

Weber, S. V. ^{[1
]}

Clark, D. S. ^{[1
]}

Lindl, J. D. ^{[1
]}

MacGowan, B. J. ^{[1
]}

Moses, E. I. ^{[1
]}

Atherton, J. ^{[1
]}

Amendt, P. A. ^{[1
]}

Boehly, T. R. ^{[2
]}

Bradley, D. K. ^{[1
]}

Braun, D. G. ^{[1
]}

Callahan, D. A. ^{[1
]}

Celliers, P. M. ^{[1
]}

Collins, G. W. ^{[1
]}

Dewald, E. L. ^{[1
]}

Divol, L. ^{[1
]}

Frenje, J. A. ^{[3
]}

Glenzer, S. H. ^{[1
]}

Hamza, A. ^{[1
]}

Hammel, B. A. ^{[1
]}

Hicks, D. G. ^{[1
]}

Hoffman, N. ^{[4
]}

Izumi, N. ^{[1
]}

Jones, O. S. ^{[1
]}

Kilkenny, J. D. ^{[5
]}

Kirkwood, R. K. ^{[1
]}

Kline, J. L. ^{[4
]}

Kyrala, G. A. ^{[4
]}

Marinak, M. M. ^{[1
]}

Meezan, N. ^{[1
]}

Meyerhofer, D. D. ^{[2
]}

Michel, P. ^{[1
]}

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

Olson, R. E. ^{[6
]}

Nikroo, A. ^{[5
]}

Regan, S. P. ^{[2
]}

Suter, L. J. ^{[1
]}

Thomas, C. A. ^{[1
]}

Wilson, D. C. ^{[4
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Univ Rochester, Laser Energet Lab, Rochester, NY USA

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

[4] Los Alamos Natl Lab, Los Alamos, NM USA

[5] Gen Atom Co, San Diego, CA USA

[6] Sandia Natl Labs, Albuquerque, NM USA

来源：

PHYSICS OF PLASMAS | 2011年 / 18卷 / 05期

关键词：

INERTIAL CONFINEMENT FUSION; HOHLRAUM SYMMETRY EXPERIMENTS; EQUATION-OF-STATE; X-RAY BURNTHROUGH; PHYSICS BASIS; CH CAPSULES; FACILITY; SHOCK; OMEGA; TIME;

D O I：

10.1063/1.3592170

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：

Capsule performance optimization campaigns will be conducted at the National Ignition Facility [G. H. Miller, E. I. Moses, and C. R. Wuest, Nucl. Fusion 44, 228 (2004)] to substantially increase the probability of ignition. The campaigns will experimentally correct for residual uncertainties in the implosion and hohlraum physics used in our radiation-hydrodynamic computational models using a variety of ignition capsule surrogates before proceeding to cryogenic-layered implosions and ignition experiments. The quantitative goals and technique options and down selections for the tuning campaigns are first explained. The computationally derived sensitivities to key laser and target parameters are compared to simple analytic models to gain further insight into the physics of the tuning techniques. The results of the validation of the tuning techniques at the OMEGA facility [J. M. Soures et al., Phys. Plasmas 3, 2108 (1996)] under scaled hohlraum and capsule conditions relevant to the ignition design are shown to meet the required sensitivity and accuracy. A roll-up of all expected random and systematic uncertainties in setting the key ignition laser and target parameters due to residual measurement, calibration, cross-coupling, surrogacy, and scale-up errors has been derived that meets the required budget. Finally, we show how the tuning precision will be improved after a number of shots and iterations to meet an acceptable level of residual uncertainty. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3592170]

引用

页数：32

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