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Experimental Demonstration of X-Ray Drive Enhancement with Rugby-Shaped Hohlraums

Source: Phys. Rev. Lett. 104, 035004 (2010); doi:10.1103/PhysRevLett.104.035004

Published 22 January 2010

PACS
  • 52.57.Bc
    Target design and fabrication for laser ICF
  • 52.50.Jm
    Plasma production and heating by laser beams
  • 52.57.Fg
    Implosion symmetry and hydrodynamic instability for laser ICF
  • YEAR: 2010
PUBLICATION DATA
ISSN:
1553-9601 (online)
Publisher:
AIP is a member of CrossRef APS
F. Philippe, A. Casner, T. Caillaud, O. Landoas, M. C. Monteil, and S. Liberatore
CEA, DAM, DIF, F-91297 Arpajon, France

H. S. Park, P. Amendt, H. Robey, and C. Sorce
Lawrence Livermore National Laboratory, Livermore, California 94550, USA

C. K. Li, F. Seguin, M. Rosenberg, and R. Petrasso
Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

V. Glebov and C. Stoeckl
Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
Rugby-shaped hohlraums have been suggested as a way to enhance x-ray drive in the indirect drive approach to inertial confinement fusion. This Letter presents an experimental comparison of rugby-shaped and cylinder hohlraums used for D2 and D3He-filled capsules implosions on the Omega laser facility, demonstrating an increase of x-ray flux by 18% in rugby-shaped hohlraums. The highest yields to date for deuterium gas implosions in indirect drive on Omega (1.5×1010 neutrons) were obtained, allowing for the first time the measurement of a DD burn history. Proton spectra measurements provide additional validation of the higher drive in rugby-shaped hohlraums. ©2010 The American Physical Society
History: Received 9 November 2009; published 22 January 2010
Permalink: http://link.aps.org/abstract/PRL/v104/e035004
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