Fast-wave ion-cyclotron heating in the Princeton Large Torus
Recent experimental results for ICRF heating in PLT are presented. For the two-ion regime in D-H or D-/sup 3/He plasmas minority H and /sup 3/He ions are found to absorb the rf power and transfer it to the deuterons and electrons in accordance with Fokker-Planck theory. The deuteron heating rate is approx. 3 eV x 10/sup 13/ cm/sup -3//kW for H and approx. 6 eV x 10/sup 13/ cm/sup -3//kW for /sup 3/He minorities. Neutron fluxes of approx. 3 x 10/sup 11/ sec/sup -1/ corresponding to a T/sub d/ approx. 2 keV (..delta..T/sub d/ approx. 1.2 keV) have been produced with P/sub rf/ approx. = 620 kW at anti n/sub e/ approx. = 2.9 x 10/sup 13/ cm/sup -3/. Neutron energy spectra and mass sensitive charge exchange spectra indicate Maxwellian deuteron distributions. In addition, D-/sup 3/He fusion reaction rates greater than or equal to 10/sup 12/ sec/sup -1/ have been produced by the energetic /sup 3/He ions. For the second harmonic regime, initial heating results for an H plasma at P/sub rf/ approx. = 140 kW are consistent with the Fokker-Planck theory and the bulk heating rate is comparable to that of D heating in the D-H minority regime.
- Research Organization:
- Princeton Univ., NJ (USA). Plasma Physics Lab.
- DOE Contract Number:
- AM02-76CH03073
- OSTI ID:
- 6802079
- Report Number(s):
- PPPL-1729
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
DEUTERIUM
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
EVEN-ODD NUCLEI
FOKKER-PLANCK EQUATION
HEATING
HELIUM 3
HELIUM ISOTOPES
HIGH-FREQUENCY HEATING
HYDROGEN
HYDROGEN ISOTOPES
ICR HEATING
ISOTOPES
LIGHT NUCLEI
NEUTRON FLUX
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA HEATING
PLT DEVICES
RADIATION FLUX
STABLE ISOTOPES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
DEUTERIUM
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
EVEN-ODD NUCLEI
FOKKER-PLANCK EQUATION
HEATING
HELIUM 3
HELIUM ISOTOPES
HIGH-FREQUENCY HEATING
HYDROGEN
HYDROGEN ISOTOPES
ICR HEATING
ISOTOPES
LIGHT NUCLEI
NEUTRON FLUX
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA HEATING
PLT DEVICES
RADIATION FLUX
STABLE ISOTOPES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS