Core conditions for alpha heating attained in direct-drive inertial confinement fusion

Bose, A.; Woo, K. M.; Betti, R.; Campbell, E. M.; Mangino, D.; Christopherson, A. R.; McCrory, R. L.; Nora, R.; Regan, S. P.; Goncharov, V. N.; Sangster, T. C.; Forrest, C. J.; Frenje, J.; Gatu Johnson, M.; Glebov, V. Yu; Knauer, J. P.; Marshall, F. J.; Stoeckl, C.; Theobald, W.

doi:10.1103/PhysRevE.94.011201

Title: Core conditions for alpha heating attained in direct-drive inertial confinement fusion

Journal Article · Thu Jul 07 00:00:00 EDT 2016 · Physical Review E

DOI:https://doi.org/10.1103/PhysRevE.94.011201· OSTI ID:1262304

Bose, A. ^[1]; Woo, K. M. ^[1]; Betti, R. ^[1]; Campbell, E. M. ^[1]; Mangino, D. ^[1]; Christopherson, A. R. ^[1]; McCrory, R. L. ^[1]; Nora, R. ^[2]; Regan, S. P. ^[1]; Goncharov, V. N. ^[1]; Sangster, T. C. ^[1]; Forrest, C. J. ^[1]; Frenje, J. ^[3]; Gatu Johnson, M. ^[3]; Glebov, V. Yu ^[1]; Knauer, J. P. ^[1]; Marshall, F. J. ^[1]; Stoeckl, C. ^[1]; Theobald, W. ^[1]

Univ. of Rochester, Rochester, NY (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

It is shown that direct-drive implosions on the OMEGA laser have achieved core conditions that would lead to significant alpha heating at incident energies available on the National Ignition Facility (NIF) scale. The extrapolation of the experimental results from OMEGA to NIF energy assumes only that the implosion hydrodynamic efficiency is unchanged at higher energies. This approach is independent of the uncertainties in the physical mechanism that degrade implosions on OMEGA, and relies solely on a volumetric scaling of the experimentally observed core conditions. It is estimated that the current best-performing OMEGA implosion [Regan et al., Phys. Rev. Lett. 117, 025001 (2016)] extrapolated to a 1.9 MJ laser driver with the same illumination configuration and laser-target coupling would produce 125 kJ of fusion energy with similar levels of alpha heating observed in current highest performing indirect-drive NIF implosions.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0001857; NA0002949; NA0001944; FC02-04ER54789

OSTI ID:: 1262304

Alternate ID(s):: OSTI ID: 1260858

Journal Information:: Physical Review E, Vol. 94, Issue 1; ISSN 2470-0045

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 28 works

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Tripled yield in direct-drive laser fusion through statistical modelling Gopalaswamy, V.; Betti, R.; Knauer, J. P. Nature, Vol. 565, Issue 7741 https://doi.org/10.1038/s41586-019-0877-0	journal	January 2019
Monochromatic backlighting of direct-drive cryogenic DT implosions on OMEGA Stoeckl, C.; Epstein, R.; Betti, R. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4977918	journal	May 2017
A comprehensive alpha-heating model for inertial confinement fusion Christopherson, A. R.; Betti, R.; Bose, A. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.4991405	journal	January 2018
The physics of long- and intermediate-wavelength asymmetries of the hot spot: Compression hydrodynamics and energetics Bose, A.; Betti, R.; Shvarts, D. Physics of Plasmas, Vol. 24, Issue 10 https://doi.org/10.1063/1.4995250	journal	October 2017
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Effects of residual kinetic energy on yield degradation and ion temperature asymmetries in inertial confinement fusion implosions Woo, K. M.; Betti, R.; Shvarts, D. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5026706	journal	May 2018
Analysis of trends in experimental observables: Reconstruction of the implosion dynamics and implications for fusion yield extrapolation for direct-drive cryogenic targets on OMEGA Bose, A.; Betti, R.; Mangino, D. Physics of Plasmas, Vol. 25, Issue 6 https://doi.org/10.1063/1.5026780	journal	June 2018
Theory of alpha heating in inertial fusion: Alpha-heating metrics and the onset of the burning-plasma regime Christopherson, A. R.; Betti, R.; Howard, J. Physics of Plasmas, Vol. 25, Issue 7 https://doi.org/10.1063/1.5030337	journal	July 2018
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