Sheath broadening in imploding z-pinches due to large-bandwidth Rayleigh-Taylor instability

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The magnetic Rayleigh-Taylor (RT) instability has been predicted and observed to cause breakup of the plasma sheath in imploding Z-pinches. In this work we show that for the type of density profile encountered in strongly radiating pinches, instability at very short wavelengths grows to the non-linear stage and seeds progressively longer wavelengths. The result is a self-similar broadening of the sheath as found for mix layers in fluid RT unstable systems.

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4 p.

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Hammer, J.H.; Eddleman, J.L.; Tabak, M.; Toor, A.; Zimmerman, G.B. & De Groot, J.S. June 4, 1996.

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Description

The magnetic Rayleigh-Taylor (RT) instability has been predicted and observed to cause breakup of the plasma sheath in imploding Z-pinches. In this work we show that for the type of density profile encountered in strongly radiating pinches, instability at very short wavelengths grows to the non-linear stage and seeds progressively longer wavelengths. The result is a self-similar broadening of the sheath as found for mix layers in fluid RT unstable systems.

Physical Description

4 p.

Notes

OSTI as DE96012184

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  • 11. international conference on high power particle beams, Prague (Czech Republic), 10-14 Jun 1996

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  • Other: DE96012184
  • Report No.: UCRL-JC--123519
  • Report No.: CONF-9606214--2
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 248877
  • Archival Resource Key: ark:/67531/metadc666482

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  • June 4, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Feb. 23, 2016, 12:09 p.m.

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Hammer, J.H.; Eddleman, J.L.; Tabak, M.; Toor, A.; Zimmerman, G.B. & De Groot, J.S. Sheath broadening in imploding z-pinches due to large-bandwidth Rayleigh-Taylor instability, article, June 4, 1996; California. (digital.library.unt.edu/ark:/67531/metadc666482/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.