d-/sup 3/ He reaction measurements during fast wave minority heating in the PLT tokamak experiment

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Phys. Fluids; (United States)

OSTI ID:5975276

Chrien, R E; Strachan, J D

Time- and energy-resolved d-/sup 3/He fusion reactions have been measured to infer the energy of the d/sup +/ or He/sup + +/ minority ions heated near their cyclotron frequency by the magnetosonic fast wave. The average energy of the reacting /sup 3/He ions during /sup 3/He minority heating is in the range of 100--400 keV, as deduced from the magnitude of the reaction rate, its decay time, and the energy spread of the proton reaction products. The observed reaction rate and its scaling with wave power and electron density and temperature are in qualitative agreement with a radial reaction rate model using the minority distribution predicted from quasilinear velocity space diffusion. Oscillations in the reaction rate are observed concurrent with sawtooth and m = 2 magnetohydrodynamic activity in the plasma.

• Research Organization: Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08540
• OSTI ID: 5975276
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:7; 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
CHARGED PARTICLES
CLOSED PLASMA DEVICES
CYCLOTRON FREQUENCY
CYCLOTRON RESONANCE
DEUTERONS
ELECTRON TEMPERATURE
ENERGY RANGE
ENERGY RESOLUTION
FUSION REACTIONS
HEATING
HELIUM IONS
IONS
KEV RANGE
KEV RANGE 100-1000
NUCLEAR REACTIONS
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA HEATING
PLT DEVICES
PROBES
PROTON PROBES
RESOLUTION
RESONANCE
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TIME RESOLUTION
TIMING PROPERTIES
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS