Growth rates of interchange modes in the dense z-pinch and gas blanket effects

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A class of models of the dense z-pinch in which the bulk of the plasma is neutrally stable against interchange is studied. At a radius a the plasma is abruptly terminated and surrounded by a gas blanket. Instability results from the surface current necessary to maintain pressure balance at the plasma-gas interface. A single dispersion relation applies to all models in this class and shows two effects of the gas blanket in reducing growth rate. (1) Partial support of plasma pressure by external gas pressure reduces the driving force for the instability, and (2) mass loading of the relatively dense ... continued below

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Pages: 19

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Suydam, B.R. May 1, 1980.

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Description

A class of models of the dense z-pinch in which the bulk of the plasma is neutrally stable against interchange is studied. At a radius a the plasma is abruptly terminated and surrounded by a gas blanket. Instability results from the surface current necessary to maintain pressure balance at the plasma-gas interface. A single dispersion relation applies to all models in this class and shows two effects of the gas blanket in reducing growth rate. (1) Partial support of plasma pressure by external gas pressure reduces the driving force for the instability, and (2) mass loading of the relatively dense neutral gas reduces growth rate.

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Pages: 19

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NTIS, PC A02/MF A01.

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  • Report No.: LA-8340-MS
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/5313725 | External Link
  • Office of Scientific & Technical Information Report Number: 5313725
  • Archival Resource Key: ark:/67531/metadc1071463

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • May 1, 1980

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • May 30, 2018, 12:40 p.m.

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Suydam, B.R. Growth rates of interchange modes in the dense z-pinch and gas blanket effects, report, May 1, 1980; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1071463/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.