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

被引：1

作者：

Churnetski, K. ^{[1
]}

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

Theobald, W. ^{[1
]}

Stoeckl, C. ^{[1
]}

Ceurvorst, L. ^{[1
]}

Gopalaswamy, V. ^{[1
]}

Rinderknecht, H. G. ^{[1
]}

Heuer, P. V. ^{[1
]}

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

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

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

Ivancic, S. T. ^{[1
]}

Michalko, M. ^{[1
]}

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

Lees, A. ^{[1
]}

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

Betti, R. ^{[1
]}

Thomas, C. A. ^{[1
]}

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

Kunimune, J. ^{[2
]}

Wink, C. ^{[2
]}

Adrian, P. J. ^{[2
]}

Johnson, M. Gatu ^{[2
]}

Frenje, J. A. ^{[1
,2
]}

机构：

[1] Univ Rochester, Lab Laser Energet, Rochester, NY 14623 USA

[2] MIT, Plasma Sci & Fus Ctr, Cambridge, MA USA

来源：

HIGH ENERGY DENSITY PHYSICS | 2024年 / 52卷

关键词：

Inertial confinement fusion; X-ray Imager; Direct drive; Low -mode asymmetry; X-ray tomography;

D O I：

10.1016/j.hedp.2024.101108

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

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. 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.

引用

页数：5

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