Production of hot electrons for axisymmetric thermal barrier formation in a tandem mirror

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.865473· OSTI ID:5079711

Kiwamoto, Y; Saito, T; Cho, T; Yamaguchi, N; Mase, A; Sakasai, A; Kariya, T; Kondoh, T; Gotoh, H; Katanuma, I; others, and

Hot electrons have been produced by second harmonic electron-cyclotron resonance heating in axisymmetric end mirrors of the tandem mirror GAMMA10 (Phys. Rev. Lett. 55, 939 (1985)) with an on-axis density fraction reaching 80% and temperature of 25--50 keV, satisfying theoretically required conditions for the formation of thermal barriers. The successful control of the electron temperature may be attributed to the relativistic detuning of the second harmonic resonance for localized microwave power absorption. The time evolutions of relevant parameters are studied with extensive diagnostics.

• Research Organization: Plasma Research Center, University of Tsukuba, Sakura Ibaraki 305, Japan
• OSTI ID: 5079711
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:9; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
ABSORPTION
CONTROL
CYCLOTRON RESONANCE
ECR HEATING
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ENERGY ABSORPTION
ENERGY RANGE
HEATING
HIGH-FREQUENCY HEATING
HOT PLASMA
MAGNETIC MIRRORS
MICROWAVE RADIATION
OPEN PLASMA DEVICES
PLASMA
PLASMA DIAGNOSTICS
PLASMA HEATING
RADIATIONS
RELATIVISTIC RANGE
RESONANCE
SYMMETRY
TANDEM MIRRORS
THERMAL BARRIERS
THERMONUCLEAR DEVICES
TUNING