Tripled yield in direct-drive laser fusion through statistical modelling

被引：136

作者：

Gopalaswamy, V. ^{[1
,2
]}

Betti, R. ^{[1
,2
,3
]}

Knauer, J. P. ^{[1
]}

Luciani, N. ^{[1
,2
,4
]}

Patel, D. ^{[1
,2
]}

Woo, K. M. ^{[1
,3
]}

Bose, A. ^{[1
,5
]}

Igumenshchev, I. V. ^{[1
]}

Campbell, E. M. ^{[1
]}

Anderson, K. S. ^{[1
]}

Bauer, K. A. ^{[1
]}

Bonino, M. J. ^{[1
]}

Cao, D. ^{[1
]}

Christopherson, A. R. ^{[1
,2
]}

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

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

Davies, J. R. ^{[1
]}

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

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

Epstein, R. ^{[1
]}

Forrest, C. J. ^{[1
]}

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

Glebov, V. Y. ^{[1
]}

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

Harding, D. R. ^{[1
]}

Hu, S. X. ^{[1
]}

Jacobs-Perkins, D. W. ^{[1
]}

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

Kelly, J. H. ^{[1
]}

Mannion, O. M. ^{[1
,3
]}

Maximov, A. ^{[1
,2
]}

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

Michel, D. T. ^{[1
]}

Miller, S. ^{[1
,2
]}

Morse, S. F. B. ^{[1
]}

Palastro, J. ^{[1
]}

Peebles, J. ^{[1
]}

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

Regan, S. P. ^{[1
]}

Sampat, S. ^{[1
]}

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

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

Seka, W. ^{[1
]}

Shah, R. C. ^{[1
]}

Shmyada, W. T. ^{[1
]}

Shvydky, A. ^{[1
]}

Stoeckl, C. ^{[1
]}

Solodov, A. A. ^{[1
]}

Theobald, W. ^{[1
]}

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

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14627 USA

[2] Univ Rochester, Dept Mech Engn, Rochester, NY 14627 USA

[3] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[4] Politecn Milan, Dipartimento Energet, Milan, Italy

[5] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

来源：

NATURE | 2019年 / 565卷 / 7741期

关键词：

INERTIAL-CONFINEMENT FUSION; NATIONAL IGNITION FACILITY; SIMULATIONS; OMEGA;

D O I：

10.1038/s41586-019-0877-0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Focusing laser light onto a very small target can produce the conditions for laboratory-scale nuclear fusion of hydrogen isotopes. The lack of accurate predictive models, which are essential for the design of high-performance laser-fusion experiments, is a major obstacle to achieving thermonuclear ignition. Here we report a statistical approach that was used to design and quantitatively predict the results of implosions of solid deuterium-tritium targets carried out with the 30-kilojoule OMEGA laser system, leading to tripling of the fusion yield to its highest value so far for direct-drive laser fusion. When scaled to the laser energies of the National Ignition Facility (1.9 megajoules), these targets are predicted to produce a fusion energy output of about 500 kilojoules-several times larger than the fusion yields currently achieved at that facility. This approach could guide the exploration of the vast parameter space of thermonuclear ignition conditions and enhance our understanding of laser-fusion physics.

引用

页码：581 / +

页数：14

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