Three-dimensional diagnostics and measurements of inertial confinement fusion plasmas

被引：7

作者：

Schlossberg, D. J. ^{[1
]}

Bionta, R. M. ^{[1
]}

Casey, D. T. ^{[1
]}

Eckart, M. J. ^{[1
]}

Fittinghoff, D. N. ^{[1
]}

Geppert-Kleinrath, V ^{[2
]}

Grim, G. P. ^{[1
]}

Hahn, K. D. ^{[1
]}

Hartouni, E. P. ^{[1
]}

Jeet, J. ^{[1
]}

Kerr, S. M. ^{[1
]}

Mackinnon, A. J. ^{[1
]}

Moore, A. S. ^{[1
]}

Volegov, P. L. ^{[2
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Los Alamos Natl Lab, Los Alamos, NM 87185 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2021年 / 92卷 / 05期

关键词：

Inertial confinement fusion;

D O I：

10.1063/5.0043853

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Recent inertial confinement fusion measurements have highlighted the importance of 3D asymmetry effects on implosion performance. One prominent example is the bulk drift velocity of the deuterium-tritium plasma undergoing fusion ("hotspot"), v(HS). Upgrades to the National Ignition Facility neutron time-of-flight diagnostics now provide v(HS) to better than 1 part in 10(4) and enable cross correlations with other measurements. This work presents the impact of v(HS) on the neutron yield, downscatter ratio, apparent ion temperature, electron temperature, and 2D x-ray emission. The necessary improvements to diagnostic suites to take these measurements are also detailed. The benefits of using cross-diagnostic analysis to test hotspot models and theory are discussed, and cross-shot trends are shown. Published under license by AIP Publishing.

引用

页数：5

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