Contribution of Yushmanov-trapped electrons to a thermal dike

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872019· OSTI ID:280157

Tatematsu, Y; Kiwamoto, Y; Saito, T; Yoshimura, Y; Katanuma, I; Tamano, T ^[1]

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1. Plasma Research Center, University of Tsukuba, Tsukuba-shi Ibaraki-ken 305 (Japan)

A substantial amount of Yushmanov-trapped electrons are generated as a result of electron cyclotron resonance heating employed for generating a thermal dike in an open magnetic field configuration. The production rate and the energy spectrum of the trapped electrons are calculated by using a heating response function. The calculated energy spectrum of the end-loss electrons driven from the Yushmanov-trapped region indicates a reduction in power efficiency of the thermal dike. The potential profile modified by the Yushmanov-trapped particles tends to reduce their production rate, leading to a stationary state. Their significance to a thermal dike basic experiment in the end region of the GAMMA 10 tandem mirror [{ital Plasma} {ital Physics} {ital and} {ital Controlled} {ital Nuclear} {ital Fusion} {ital Research} 1992 (International Atomic Energy Agency, Vienna, 1993), Vol. 2, p. 651] is discussed. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 280157
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ECR HEATING
ENERGY LOSSES
ENERGY SPECTRA
MAGNETIC MIRRORS
PLASMA HEATING
RESPONSE FUNCTIONS
TOKAMAK DEVICES
TRAPPED ELECTRONS