Implosion configurations for robust ignition using high- density carbon (diamond) ablator for indirect-drive ICF at the National Ignition Facility

D. D.M. Ho, S. W. Haan, J. D. Salmonson, D. S. Clark, J. D. Lindl, J. L. Milovich, C. A. Thomas, L. F. Berzak Hopkins, N. B. Meezan

Research output: Contribution to journalConference articlepeer-review

35 Scopus citations

Abstract

We present five ignition scale capsule designs using high-density carbon ablators with fuel adiabat (α) ranging from 1.5 to 4. All five have 1D yield > 1 MJ. The sensitivities of these capsules to surface roughness and P2 radiation asymmetries were studied. The most robust configuration with respect to surface roughness depends on the amplitude of the surface spectrum. The most robust configuration with respect to P2 asymmetry is the α = 1.5 configuration which has the highest 1D margin. We find that α = 2 and 2.5 configurations have the highest overall robustness. Further analysis is needed to study the effects of more complicated 3D behaviors.

Original languageEnglish (US)
Article number012023
JournalJournal of Physics: Conference Series
Volume717
Issue number1
DOIs
StatePublished - May 26 2016
Externally publishedYes
Event9th International Conference on Inertial Fusion Sciences and Applications, IFSA 2015 - Seattle, United States
Duration: Sep 20 2015Sep 25 2015

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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