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Title: Generating end plug potentials in tandem mirror plasma confinement by heating thermal particles so as to escape low density end stoppering plasmas

Abstract

The invention provides a method and apparatus for raising the potential of a magnetic mirror cell by pumping charged particles of the opposite sign of the potential desired out of the mirror cell through excitation, with the pumping being done by an externally imposed field at the bounce frequency of the above charged particles. These pumped simple mirror cells then provide end stoppering for a center mirror cell for the tandem mirror plasma confinement apparatus. For the substantially complete pumping case, the end plugs of a tandem mirror can be up to two orders of magnitude lower in density for confining a given center mirror cell plasma than in the case of end plugs without pumping. As a result the decrease in recirculating power required to keep the system going, the technological state of the art required, and the capital cost are all greatly lowered.

Inventors:
 [1];  [1]
  1. (Danville, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863805
Patent Number(s):
4252608
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
generating; plug; potentials; tandem; mirror; plasma; confinement; heating; thermal; particles; escape; density; stoppering; plasmas; provides; method; apparatus; raising; potential; magnetic; cell; pumping; charged; opposite; desired; excitation; externally; imposed; field; bounce; frequency; pumped; simple; cells; provide; center; substantially; complete; plugs; magnitude; confining; result; decrease; recirculating; power; required; technological; capital; cost; greatly; lowered; power required; center mirror; tandem mirror; magnetic mirror; mirror cells; charged particles; charged particle; plasma confinement; substantially complete; mirror plasma; mirror cell; confinement apparatus; /376/

Citation Formats

Baldwin, David E., and Logan, B. Grant. Generating end plug potentials in tandem mirror plasma confinement by heating thermal particles so as to escape low density end stoppering plasmas. United States: N. p., 1981. Web.
Baldwin, David E., & Logan, B. Grant. Generating end plug potentials in tandem mirror plasma confinement by heating thermal particles so as to escape low density end stoppering plasmas. United States.
Baldwin, David E., and Logan, B. Grant. Thu . "Generating end plug potentials in tandem mirror plasma confinement by heating thermal particles so as to escape low density end stoppering plasmas". United States. https://www.osti.gov/servlets/purl/863805.
@article{osti_863805,
title = {Generating end plug potentials in tandem mirror plasma confinement by heating thermal particles so as to escape low density end stoppering plasmas},
author = {Baldwin, David E. and Logan, B. Grant},
abstractNote = {The invention provides a method and apparatus for raising the potential of a magnetic mirror cell by pumping charged particles of the opposite sign of the potential desired out of the mirror cell through excitation, with the pumping being done by an externally imposed field at the bounce frequency of the above charged particles. These pumped simple mirror cells then provide end stoppering for a center mirror cell for the tandem mirror plasma confinement apparatus. For the substantially complete pumping case, the end plugs of a tandem mirror can be up to two orders of magnitude lower in density for confining a given center mirror cell plasma than in the case of end plugs without pumping. As a result the decrease in recirculating power required to keep the system going, the technological state of the art required, and the capital cost are all greatly lowered.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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