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@article{Gatu:2018:10.1103/PhysRevE.98.051201,
author = {Gatu, Johnson M and Appelbe, BD and Chittenden, JP and Delettrez, J and Forrest, C and Frenje, JA and Glebov, VY and Grimble, W and Haines, BM and Igumenshchev, I and Janezic, R and Knauer, JP and Lahmann, B and Marshall, FJ and Michel, T and Séguin, FH and Stoeckl, C and Walsh, C and Zylstra, AB and Petrasso, RD},
doi = {10.1103/PhysRevE.98.051201},
journal = {Physical Review E},
title = {Impact of asymmetries on fuel performance in inertial confinement fusion},
url = {http://dx.doi.org/10.1103/PhysRevE.98.051201},
volume = {98},
year = {2018}
}

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TY  - JOUR
AB  - 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 (Tion) 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 "Tion" values. Flow due to low-mode asymmetries is expected to give rise to line-of-sight variations in measured Tion. 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 apparent Tion due to low-mode asymmetry-seeded flows. Contrasted to chimera and xrage simulations, 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.
AU  - Gatu,Johnson M
AU  - Appelbe,BD
AU  - Chittenden,JP
AU  - Delettrez,J
AU  - Forrest,C
AU  - Frenje,JA
AU  - Glebov,VY
AU  - Grimble,W
AU  - Haines,BM
AU  - Igumenshchev,I
AU  - Janezic,R
AU  - Knauer,JP
AU  - Lahmann,B
AU  - Marshall,FJ
AU  - Michel,T
AU  - Séguin,FH
AU  - Stoeckl,C
AU  - Walsh,C
AU  - Zylstra,AB
AU  - Petrasso,RD
DO  - 10.1103/PhysRevE.98.051201
PY  - 2018///
SN  - 2470-0045
TI  - Impact of asymmetries on fuel performance in inertial confinement fusion
T2  - Physical Review E
UR  - http://dx.doi.org/10.1103/PhysRevE.98.051201
UR  - http://hdl.handle.net/10044/1/64865
VL  - 98
ER  -

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