Fast-wave heating in the two-ion hybrid regime on PLT
Plasma heating using the fast magnetosonic wave in the ion cyclotron range of frequencies is being studied both experimentally and theoretically in order to evaluate its potential for heating reactor plasmas. RF pulses at power levels up to 800 kW and length >130 ms have been delivered to a set of two parallel 1/2 turn loop antennae with 80% of the power coupled to the plasma. The parallel antennae have been driven both in and out-of-place so that the k/sub phi/ dependence of the antenna coupling and plasma heating can be determined. The heating experiments were conducted in the two-ion hybrid regime where the deuterium plasma contained a small component of a second ion species (hydrogen or /sup 3/He). A bulk ion temperature increase of up to 1.2 keV has been achieved at the 620 kW power level with /sup 3/He as the minority species and anti n/sub e/ = 2.9 x 10/sup 13/ cm/sup -3/. Energetic minority distributions have been detected consistent with theory.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- DOE Contract Number:
- AM02-76CH03073
- OSTI ID:
- 6575159
- Report Number(s):
- PPPL-1676; TRN: 81-006476
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ICR HEATING
PLT DEVICES
ANTENNAS
HYBRID RESONANCE
ION TEMPERATURE
MAGNETOACOUSTIC WAVES
ELECTRICAL EQUIPMENT
EQUIPMENT
HEATING
HIGH-FREQUENCY HEATING
HYDROMAGNETIC WAVES
PLASMA HEATING
RESONANCE
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production