Tripled yield in direct-drive laser fusion through statistical modelling

Gopalaswamy, V.; Betti, R.; Knauer, J. P.; Luciani, N.; Patel, D.; Woo, K. M.; Bose, A.; Igumenshchev, I. V.; Campbell, E. M.; Anderson, K. S.; Bauer, K. A.; Bonino, M. J.; Cao, D.; Christopherson, A. R.; Collins, G. W.; Collins, T. J. B.; Davies, J. R.; Delettrez, J. A.; Edgell, D. H.; Epstein, R.; Forrest, C. J.; Froula, D. H.; Glebov, V. Y.; Goncharov, V. N.; Harding, D. R.; Hu, S. X.; Jacobs-Perkins, D. W.; Janezic, R. T.; Kelly, J. H.; Mannion, O. M.; Maximov, A.; Marshall, F. J.; Michel, D. T.; Miller, S.; Morse, S. F. B.; Palastro, J.; Peebles, J.; Radha, P. B.; Regan, S. P.; Sampat, S.; Sangster, T. C.; Sefkow, A. B.; Seka, W.; Shah, R. C.; Shmyada, W. T.; Shvydky, A.; Stoeckl, C.; Solodov, A. A.; Theobald, W.; Zuegel, J. D.; Johnson, M. Gatu; Petrasso, R. D.; Li, C. K.; Frenje, J. A.

Tripled yield in direct-drive laser fusion through statistical modelling

V. Gopalaswamy (), R. Betti, J. P. Knauer, N. Luciani, D. Patel, K. M. Woo, A. Bose, I. V. Igumenshchev, E. M. Campbell, K. S. Anderson, K. A. Bauer, M. J. Bonino, D. Cao, A. R. Christopherson, G. W. Collins, T. J. B. Collins, J. R. Davies, J. A. Delettrez, D. H. Edgell, R. Epstein, C. J. Forrest, D. H. Froula, V. Y. Glebov, V. N. Goncharov, D. R. Harding, S. X. Hu, D. W. Jacobs-Perkins, R. T. Janezic, J. H. Kelly, O. M. Mannion, A. Maximov, F. J. Marshall, D. T. Michel, S. Miller, S. F. B. Morse, J. Palastro, J. Peebles, P. B. Radha, S. P. Regan, S. Sampat, T. C. Sangster, A. B. Sefkow, W. Seka, R. C. Shah, W. T. Shmyada, A. Shvydky, C. Stoeckl, A. A. Solodov, W. Theobald, J. D. Zuegel, M. Gatu Johnson, R. D. Petrasso, C. K. Li and J. A. Frenje
Additional contact information
V. Gopalaswamy: University of Rochester
R. Betti: University of Rochester
J. P. Knauer: University of Rochester
N. Luciani: University of Rochester
D. Patel: University of Rochester
K. M. Woo: University of Rochester
A. Bose: University of Rochester
I. V. Igumenshchev: University of Rochester
E. M. Campbell: University of Rochester
K. S. Anderson: University of Rochester
K. A. Bauer: University of Rochester
M. J. Bonino: University of Rochester
D. Cao: University of Rochester
A. R. Christopherson: University of Rochester
G. W. Collins: University of Rochester
T. J. B. Collins: University of Rochester
J. R. Davies: University of Rochester
J. A. Delettrez: University of Rochester
D. H. Edgell: University of Rochester
R. Epstein: University of Rochester
C. J. Forrest: University of Rochester
D. H. Froula: University of Rochester
V. Y. Glebov: University of Rochester
V. N. Goncharov: University of Rochester
D. R. Harding: University of Rochester
S. X. Hu: University of Rochester
D. W. Jacobs-Perkins: University of Rochester
R. T. Janezic: University of Rochester
J. H. Kelly: University of Rochester
O. M. Mannion: University of Rochester
A. Maximov: University of Rochester
F. J. Marshall: University of Rochester
D. T. Michel: University of Rochester
S. Miller: University of Rochester
S. F. B. Morse: University of Rochester
J. Palastro: University of Rochester
J. Peebles: University of Rochester
P. B. Radha: University of Rochester
S. P. Regan: University of Rochester
S. Sampat: University of Rochester
T. C. Sangster: University of Rochester
A. B. Sefkow: University of Rochester
W. Seka: University of Rochester
R. C. Shah: University of Rochester
W. T. Shmyada: University of Rochester
A. Shvydky: University of Rochester
C. Stoeckl: University of Rochester
A. A. Solodov: University of Rochester
W. Theobald: University of Rochester
J. D. Zuegel: University of Rochester
M. Gatu Johnson: Massachusetts Institute of Technology
R. D. Petrasso: Massachusetts Institute of Technology
C. K. Li: Massachusetts Institute of Technology
J. A. Frenje: Massachusetts Institute of Technology

Nature, 2019, vol. 565, issue 7741, 581-586

Abstract: Abstract 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.

Date: 2019
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DOI: 10.1038/s41586-019-0877-0

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