Spectroscopic diagnosis of foam z-pinch plasmas on SATURN

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Solid and annular silicon aerogel and agar foams were shot on the accelerator SATURN to study plasma initiation, acceleration, and stagnation. SATURN delivers 7 MA with a 50 nsec rise time to these foam loads. We fielded several spectroscopic diagnostics to measure plasma parameters throughout the z-pinch discharge. A spatially resolved single frame time-gated EUV spectrometer measured the extent of plasma ablation off the surface foam. A time integrated crystal spectrometer showed that characteristic K shell radiation of silicon in the aerogel and of S and Na impurities in the agar were all attenuated when the foam loads were coated ... continued below

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15 p.

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Nash, T. J.; Derzon, M. S.; Allshouse, G.; Deeney, C.; Jobe, D.; McGurn, J. et al. June 1996.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Solid and annular silicon aerogel and agar foams were shot on the accelerator SATURN to study plasma initiation, acceleration, and stagnation. SATURN delivers 7 MA with a 50 nsec rise time to these foam loads. We fielded several spectroscopic diagnostics to measure plasma parameters throughout the z-pinch discharge. A spatially resolved single frame time-gated EUV spectrometer measured the extent of plasma ablation off the surface foam. A time integrated crystal spectrometer showed that characteristic K shell radiation of silicon in the aerogel and of S and Na impurities in the agar were all attenuated when the foam loads were coated with a conductive layer of gold. The time resolved pinhole camera showed that in general the quality of the pinch implosions was poor but improved with increasing efforts to improve current continuity such as prepulse and conductive coatings.

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15 p.

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INIS; OSTI as DE96010986

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  • 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996

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  • Other: DE96010986
  • Report No.: SAND--96-1290C
  • Report No.: CONF-960543--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 243438
  • Archival Resource Key: ark:/67531/metadc667283

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  • June 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 3, 2015, 11:16 p.m.

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Nash, T. J.; Derzon, M. S.; Allshouse, G.; Deeney, C.; Jobe, D.; McGurn, J. et al. Spectroscopic diagnosis of foam z-pinch plasmas on SATURN, article, June 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc667283/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.