Thin Shell, High Velocity Inertial Confinement Fusion Implosions on the National Ignition Facility
Name
PhysRevLett.114.145004.pdf
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1002.73 KB
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Checksum (MD5)
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Author(s)
Ma, T.
Hurricane, O. A.
Callahan, D. A.
Barrios, M. A.
Casey, Daniel Thomas
Dewald, E. L.
Dittrich, T. R.
Doppner, T.
Haan, S. W.
Hinkel, D. E.
Date Issued
April 2015
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Ma, T., et al. "Thin Shell, High Velocity Inertial Confinement Fusion Implosions on the National Ignition Facility." Phys. Rev. Lett. 114, 145004 (April 2015). © 2015 American Physical Society
Version
Final published version
Abstract
Experiments have recently been conducted at the National Ignition Facility utilizing inertial confinement fusion capsule ablators that are 175 and 165 μm in thickness, 10% and 15% thinner, respectively, than the nominal thickness capsule used throughout the high foot and most of the National Ignition Campaign. These three-shock, high-adiabat, high-foot implosions have demonstrated good performance, with higher velocity and better symmetry control at lower laser powers and energies than their nominal thickness ablator counterparts. Little to no hydrodynamic mix into the DT hot spot has been observed despite the higher velocities and reduced depth for possible instability feedthrough. Early results have shown good repeatability, with up to 1/2 the neutron yield coming from α-particle self-heating.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.114.145004
