Study of directly launched ion Bernstein waves in a tokamak

Journal Article · Mon Sep 14 04:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.59.1201· OSTI ID:6230225

Takase, Y; Moody, J D; Fiore, C L; McDermott, F S; Porkolab, M; Squire, J

Excitation, propagation, and absorption of directly launched ion Bernstein waves were studied with CO/sub 2/ laser scattering in the Alcator C tokamak. Optimum excitation is obtained when an ion-cyclotron harmonic layer is located just behind the antenna. Wave absorption at the ..omega.. = 3..cap omega../sub D/ = 1.5..cap omega../sub H/ layer was observed. 3 It may be necessary to control the edge density fluctuation level in order to minimize scattering of the ion Bernstein waves and optimize heating.

• Research Organization: Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 6230225
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:11; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ABSORPTION
ALCATOR DEVICE
BERNSTEIN MODE
CARBON DIOXIDE LASERS
CLOSED PLASMA DEVICES
ENERGY-LEVEL TRANSITIONS
EXCITATION
GAS LASERS
HEATING
ION WAVES
LASERS
OSCILLATION MODES
PLASMA
PLASMA HEATING
PLASMA WAVES
SCATTERING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES