Fast-wave heating in the two-ion hybrid regime on PLT

Technical Report · Thu Jan 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6575159· OSTI ID:6575159

Hwang, D Q; Chrien, R E; Colestock, P

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 Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AM02-76CH03073
• OSTI ID: 6575159
• Report Number(s): PPPL-1676
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ANTENNAS
ELECTRICAL EQUIPMENT
EQUIPMENT
HEATING
HIGH-FREQUENCY HEATING
HYBRID RESONANCE
HYDROMAGNETIC WAVES
ICR HEATING
ION TEMPERATURE
MAGNETOACOUSTIC WAVES
PLASMA HEATING
PLT DEVICES
RESONANCE
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS