Three-dimensional reconstruction of implosion stagnation in laser direct drive on OMEGA

Churnetski, K.; Woo, K. M.; Theobald, W.; Stoeckl, C.; Ceurvorst, L.; Gopalaswamy, V.; Rinderknecht, H. G.; Heuer, P. V.; Knauer, J. P.; Forrest, C. J.; Igumenshchev, I. V.; Ivancic, S. T.; Michalko, M.; Shah, R. C.; Lees, A.; Radha, P. B.; Betti, R.; Thomas, C. A.; Regan, S. P.; Kunimune, J.; Wink, C.; Adrian, P. J.; Johnson, M. Gatu; Frenje, J. A.

doi:10.1016/j.hedp.2024.101108

Three-dimensional reconstruction of implosion stagnation in laser direct drive on OMEGA

Journal Article · Thu May 23 00:00:00 EDT 2024 · High Energy Density Physics

DOI:https://doi.org/10.1016/j.hedp.2024.101108· OSTI ID:2448382

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University of Rochester, NY (United States); Laboratory for Laser Energetics, University of Rochester
University of Rochester, NY (United States)
Massachusetts Institute of Technology (MIT), Cambridge, MA (United States)

Multidimensional effects on hot-spot formation must be considered to better understand the current limits on the performance of direct-drive inertial confinement fusion experiments on OMEGA with cryogenically layered solid deuterium–tritium targets. A comprehensive reconstruction effort has been established at the Laboratory for Laser Energetics to infer hot-spot and shell conditions at stagnation from a large collection of x-ray, neutron, and particle detectors along multiple lines of sight. Several time-gated and time-integrated x-ray imagers are being used to record the shape of the hot-spot plasma. A 3D hot-spot x-ray emission tomography technique has been developed to infer low-mode drive asymmetries from the hot-spot shape. A suite of neutron diagnostics is used to provide measurements of hot-spot flow velocity, ion temperature, and areal density. Here, the information obtained from the x-ray and neutron detectors will be combined into a coherent model of the shape of the hot spot and shell assembly.

View Accepted Manuscript (DOE)

Research Organization:: University of Rochester, NY (United States)

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

Grant/Contract Number:: NA0004144; SC0022132; SC0024381

OSTI ID:: 2448382

Journal Information:: High Energy Density Physics, Journal Name: High Energy Density Physics Vol. 52; ISSN 1574-1818

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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