Actions for ECRH (electron-cyclotron resonance heating)-heated distributions in thermal-barrier tandem mirrors [electronic resource].

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ECRH (electron-cyclotron resonance heating)-heated distributions in thermal-barrier tandem mirrors [electronic resource].

Published
Livermore, Calif : Lawrence Livermore National Laboratory, 1987.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 12 : digital, PDF file
Additional Creators
Lawrence Livermore National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The distribution function is calculated for electrons subjected to strong electron-cyclotron resonance heating (ECRH) at the plug and barrier in a tandem-mirror thermal-barrier cell. When ECRH diffusion locally dominates over collisions and a boundary condition (associated with electrons passing to the center cell) imposes variations on the distribution function rapid compared to the variation of the ECRH and collisional diffusion coefficients, the kinetic equation can be reduced approximately to Laplace's equation. For the typical case where velocity space is divided into distinct regions in which plug and barrier ECRH dominate, the solution in each region can be expressed in terms of the plasma dispersion function or exponential integrals, according to whether the passing electrons are dominated by collisions or ECRH, respectively. The analytic results agree well with Fokker-Planck code results, in terms of both velocity-space structure and values of moments. 10 refs., 4 figs.
Report Numbers
E 1.99:ucrl-97582
E 1.99: conf-8709203-1
conf-8709203-1
ucrl-97582
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
09/01/1987.
"ucrl-97582"
" conf-8709203-1"
"DE88002390"
International school of plasma physics, Varenna, Italy, 1 Sep 1987.
Cohen, R.H.; LoDestro, L.L.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14753384