Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion.

Smalyuk, V.A. and Betti, R. and Delettrez, J.A. and Glebov, V.Y. and Meyerhofer, D.D. and Radha, P.B. and Regan, S.P. and Sangster, T.C. and Sanz, Javier and Seka, W. and Stoeckl, C. and Yaakobi, B. and Frenje, J.A. and Li, C.K. and Petrasso, R.D. and Séguin, F.H. (2010). Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion.. "Physical Review Letters", v. 104 (n. 16); pp.. ISSN 0031-9007. https://doi.org/10.1103/PhysRevLett.104.165002.

Description

Title: Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion.
Author/s:
  • Smalyuk, V.A.
  • Betti, R.
  • Delettrez, J.A.
  • Glebov, V.Y.
  • Meyerhofer, D.D.
  • Radha, P.B.
  • Regan, S.P.
  • Sangster, T.C.
  • Sanz, Javier
  • Seka, W.
  • Stoeckl, C.
  • Yaakobi, B.
  • Frenje, J.A.
  • Li, C.K.
  • Petrasso, R.D.
  • Séguin, F.H.
Item Type: Article
Título de Revista/Publicación: Physical Review Letters
Date: April 2010
ISSN: 0031-9007
Volume: 104
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Direct-drive implosions with 20-μm-thick glass shells were conducted on the Omega Laser Facility to test the performance of high-Z glass ablators for direct-drive, inertial confinement fusion. The x-ray signal caused by hot electrons generated by two-plasmon-decay instability was reduced by more than ∼40× and hot-electron temperature by ∼2× in the glass compared to plastic ablators at ignition-relevant drive intensities of ∼1×1015  W/cm2, suggesting reduced target preheat. The measured absorption and compression were close to 1D predictions. The measured soft x-ray production in the spectral range of ∼2 to 4 keV was ∼2× to 3× lower than 1D predictions, indicating that the shell preheat caused by soft x-rays is less than predicted. A direct-drive-ignition design based on glass ablators is introduced.

More information

Item ID: 7647
DC Identifier: http://oa.upm.es/7647/
OAI Identifier: oai:oa.upm.es:7647
DOI: 10.1103/PhysRevLett.104.165002
Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.104.165002
Deposited by: Memoria Investigacion
Deposited on: 04 Jul 2011 09:17
Last Modified: 20 Apr 2016 16:43
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