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Title: Induction plasma tube

Abstract

An induction plasma tube having a segmented, fluid-cooled internal radiation shield is disclosed. The individual segments are thick in cross-section such that the shield occupies a substantial fraction of the internal volume of the plasma enclosure, resulting in improved performance and higher sustainable plasma temperatures. The individual segments of the shield are preferably cooled by means of a counterflow fluid cooling system wherein each segment includes a central bore and a fluid supply tube extending into the bore. The counterflow cooling system results in improved cooling of the individual segments and also permits use of relatively larger shield segments which permit improved electromagnetic coupling between the induction coil and a plasma located inside the shield. Four embodiments of the invention, each having particular advantages, are disclosed.

Inventors:
 [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
864885
Patent Number(s):
4431901
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
induction; plasma; tube; segmented; fluid-cooled; internal; radiation; shield; disclosed; individual; segments; thick; cross-section; occupies; substantial; fraction; volume; enclosure; resulting; improved; performance; sustainable; temperatures; preferably; cooled; means; counterflow; fluid; cooling; segment; central; bore; supply; extending; results; permits; relatively; larger; permit; electromagnetic; coupling; coil; located; inside; embodiments; particular; advantages; supply tube; internal volume; substantial fraction; improved performance; located inside; induction coil; plasma tube; radiation shield; central bore; tube extending; relatively larger; induction plasma; improved cooling; flow fluid; /219/315/

Citation Formats

Hull, Donald E. Induction plasma tube. United States: N. p., 1984. Web.
Hull, Donald E. Induction plasma tube. United States.
Hull, Donald E. Sun . "Induction plasma tube". United States. https://www.osti.gov/servlets/purl/864885.
@article{osti_864885,
title = {Induction plasma tube},
author = {Hull, Donald E},
abstractNote = {An induction plasma tube having a segmented, fluid-cooled internal radiation shield is disclosed. The individual segments are thick in cross-section such that the shield occupies a substantial fraction of the internal volume of the plasma enclosure, resulting in improved performance and higher sustainable plasma temperatures. The individual segments of the shield are preferably cooled by means of a counterflow fluid cooling system wherein each segment includes a central bore and a fluid supply tube extending into the bore. The counterflow cooling system results in improved cooling of the individual segments and also permits use of relatively larger shield segments which permit improved electromagnetic coupling between the induction coil and a plasma located inside the shield. Four embodiments of the invention, each having particular advantages, are disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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