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Experimental configuration of direct drive cylindrical implosions on the OMEGA laser

Rev. Sci. Instrum. 70, 471 (1999); doi:10.1063/1.1149480

Issue Date: January 1999

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Cris W. Barnes, David L. Tubbs, J. B. Beck, N. M. Hoffman, K. A. Klare, J. A. Oertel, and R. G. Watt
Los Alamos National Laboratory, Los Alamos, New Mexico 87545

T. R. Boehly, D. K. Bradley, and J. P. Knauer
Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623
Details about the cylindrical implosions using direct-drive irradiation on the OMEGA Laser facility are provided. The experimental configuration, including orientation, construction, and mounting of the targets is described. An attempt to characterize the modulation transfer function of the primary x-ray framing camera diagnostic results in insufficient exposure contrast but relative agreement with other determinations. The x-ray intensity of the titanium backlighter driven by the 2.5-ns-linear ramp of the laser beams is described, and the relative intensity on film is compared to similar Nova experiments. The parallax effects of different length marker layers of high-opacity dichloropolystyrene are measured, resulting in the conclusion that the marker layer length should be matched to the laser drive illumination profile. ©1999 American Institute of Physics.
History: Presented 8 June 1998
Permalink: http://link.aip.org/link/?RSINAK/70/471/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.70.La
    Physics of plasmas and electric discharges Plasma diagnostic techniques and instrumentation X-ray and -ray measurements
  • 52.58.Ns
    Physics of plasmas and electric discharges Nonmagnetic confinement Other inertial confinement (including laser)
  • YEAR: 1999

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ISSN:
0034-6748 (print)   1089-7623 (online)
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REFERENCES (10)
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  1. W. W. Hsing and N. M. Hoffman, Phys. Rev. Lett. 78, 3876 (1997).
  2. W. W. Hsing, C. W. Barnes, J. B. Beck, N. Hoffman, D. Galmiche, A. Richard, J. Edwards, P. Graham, S. Rothman, and B. Thomas, Phys. Plasmas 4, 1832 (1997).
  3. D. L. Tubbs, C. W. Barnes, J. B. Beck, N. M. Hoffman, J. A. Oertel, R. G. Watt, T. R. Boehly, D. Bradley, and J. P. Knauer, Lasers Part Beams. (submitted).
  4. T. R. Boehly et al., Opt. Commun. 133, 495 (1997).
  5. R. S. Craxton, Laboratory for Laser Energetics Report No. DOE/DP 40200-101, University of Rochester (1989).
  6. D. K. Bradley et al., Rev. Sci. Instrum. 63, 4813 (1992).
  7. H. F. Robey, K. S. Budil, and B. A. Remington, Rev. Sci. Instrum. 68, 792 (1997).
  8. V. A. Smalyuk, T. R. Boehly, D. K. Bradley, J. P. Knauer, and D. D. Meyerhofer, Rev. Sci. Instrum. (these proceedings).
  9. Memo by D. Hargrove, Report No. L-24646-01, 15 October 1997.
  10. G. F. Stone, Report No. UCRL-50021-85, November, 1986, pp. 4–102.

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