Energy Flow in Thin Shell Implosions and Explosions

Ruby, J. J.; Rygg, J. R.; Chin, D. A.; Gaffney, J. A.; Adrian, P. J.; Forrest, C. J.; Glebov, V. Yu.; Kabadi, N. V.; Nilson, P. M.; Ping, Y.; Stoeckl, C.; Collins, G. W.

doi:10.1103/physrevlett.125.215001

Energy Flow in Thin Shell Implosions and Explosions

Journal Article · Tue Nov 17 23:00:00 EST 2020 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.125.215001· OSTI ID:1725778

^[1]; Rygg, J. R. ^[2]; ^[2]; Gaffney, J. A. ^[3]; ^[4]; Forrest, C. J. ^[2]; Glebov, V. Yu. ^[2]; Kabadi, N. V. ^[4]; Nilson, P. M. ^[2]; Ping, Y. ^[3]; Stoeckl, C. ^[2]; Collins, G. W. ^[2]

Univ. of Rochester, NY (United States); Laboratory for Laser Energetics, University of Rochester
Univ. of Rochester, NY (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Energy flow and balance in convergent systems beyond petapascal energy densities controls the fate of late-stage stars and the potential for controlling thermonuclear inertial fusion ignition. Time-resolved x-ray self-emission imaging combined with a Bayesian inference analysis is used to describe the energy flow and the potential information stored in the rebounding spherical shock at 0.22 PPa (2.2 Gbar or billions of atmospheres pressure). This analysis, together with a simple mechanical model, describes the trajectory of the shell and the time history of the pressure at the fuel-shell interface, ablation pressure, and energy partitioning including kinetic energy of the shell and internal energy of the fuel. Here, the techniques used here provide a fully self-consistent uncertainty analysis of integrated implosion data, a thermodynamic-path independent measurement of pressure in the petapascal range, and can be used to deduce the energy ow in a wide variety of implosion systems to petapascal energy densities.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003856; AC52-07NA27344

OSTI ID:: 1725778

Alternate ID(s):: OSTI ID: 1810682
OSTI ID: 1899610

Report Number(s):: 2020-40, 1599, 2554; 2020-40, 1599, 2554

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 125; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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