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Title: Demonstrated high performance of gas-filled rugby-shaped hohlraums on Omega

A direct experimental comparison of rugby-shaped and cylindrical shaped gas-filled hohlraums on the Omega laser facility demonstrates that higher coupling and minimal backscatter can be achieved in the rugby geometry, leading to significantly enhanced implosion performance. A nearly 50% increase of x-ray drive is associated with earlier bangtime and increase of neutron production. The observed drive enhancement from rugby geometry in this study is almost twice stronger than in previously published results.
Authors:
;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; « less
  1. CEA, DAM, DIF, F-91297 Arpajon (France)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  3. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  4. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)
  5. General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)
Publication Date:
OSTI Identifier:
22303749
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPARATIVE EVALUATIONS; CYLINDRICAL CONFIGURATION; GEOMETRY; IMPLOSIONS; LASERS; NEUTRONS; PERFORMANCE; X RADIATION