Impact of asymmetries on fuel performance in inertial confinement fusion
Impact of asymmetries on fuel performance in inertial confinement fusion
复制标题
惯性约束聚变中不对称性对燃料性能的影响
DOI:
10.1103/physreve.98.051201
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发表时间:
2018
影响因子:
2.4
通讯作者:
Gatu Johnson M
中科院分区:
文献类型:
--
作者:
Gatu Johnson M
Low-mode asymmetries prevent effective compression, confinement, and heating of the fuel in inertial confinement fusion (ICF) implosions, and their control is essential to achieving ignition. Ion temperatures () in ICF experiments are inferred from the broadening of primary neutron spectra. Directional motion (flow) of the fuel at burn also impacts broadening and will lead to artificially inflated “” values. Flow due to low-mode asymmetries is expected to give rise to line-of-sight variations in measured. We report on intentionally asymmetrically driven experiments at the OMEGA laser facility designed to test the ability to accurately predict and measure line-of-sight differences in apparentdue to low-mode asymmetry-seeded flows. Contrasted tochimeraand xragesimulations, the measurements demonstrate how all asymmetry seeds have to be considered to fully capture the flow field in an implosion. In particular, flow induced by the stalk that holds the target is found to interfere with the seeded asymmetry. A substantial stalk-seeded asymmetry in the areal density of the implosion is also observed.
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DOI:
10.1063/1.4952440
发表时间:
2016
期刊:
The Review of scientific instruments
影响因子:
--
作者:
W. Donaldson;J. Katz;R. Huff;E. Hill;J. Kelly;J. Kwiatkowski;R. B. Brannon;R. Boni
通讯作者:
R. Boni
影响因子:
2.2
作者:
T. Murphy
通讯作者:
T. Murphy
影响因子:
2.2
作者:
Haines, Brian M.;Grim, Gary P.;Wilhelmy, Jerry B.
通讯作者:
Wilhelmy, Jerry B.
影响因子:
2.2
作者:
F. Marshall;J. Delettrez;R. Epstein;Robert A. Forties;R. Keck;J. Kelly;P. McKenty;S. Regan;L. Waxer
通讯作者:
L. Waxer
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
D. Munro
通讯作者:
D. Munro