High beta capture and mirror confinement of laser produced plasmas. Final report
The LITE fusion plasma research program at UTRC has been investigating the stabilization and confinement physics of a mirror plasma created by energetic neutral beam heating of a confined target plasma. During the period covered by this report work has been concentrated on the investigation of hot ion losses in a warm target plasma, development of a cryocondensation pump for the LITE beam line neutralizer, theoretical studies of ECRH modification of the ambipolar potential in mirror plasmas, and analysis of the effects of localized cold plasma on DCLC stabilization. The results of these investigations are summarized below and detailed in four papers which comprise the body of this report. Measurements of the lifetime of hot ions in a mirror confined warm plasma have been carried out by observations of the hot ion buildup time obtained with energetic neutral beam injection. A cryocondensation pump of novel design has been constructed and incorporated in the neutralizer chamber of the LITE neutral beam line. Calculations have been carried out to evaluate the sizes and shapes of ambipolar potential modification produced by electron cyclotron resonance heated electrons and to determine the spatial distribution and densities of cold ions trapped in the potential wells. The effects of the spatial distribution of the cold ions on their effectiveness for stabilizing the drift cyclotron loss cone instability has been studied numerically using the formulation of Pearlstein in which the dispersion relation for the DCLC mode is solved for finite-size plasmas containing hot and cold components.
- Research Organization:
- United Technologies Research Center, East Hartford, Conn. (USA)
- DOE Contract Number:
- EY-76-C-02-2277
- OSTI ID:
- 5107999
- Report Number(s):
- COO-2277-11; UTRC/R-77-953600-28; TRN: 78-008841
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DRIFT INSTABILITY
STABILIZATION
LOSS CONE INSTABILITY
MAGNETIC MIRROR TYPE REACTORS
LASER-PRODUCED PLASMA
CRYOPUMPS
DISPERSION RELATIONS
ECR HEATING
HIGH-BETA PLASMA
ION TEMPERATURE
LITHIUM HYDRIDES
NEUTRAL ATOM BEAM INJECTION
PLASMA CONFINEMENT
RESEARCH PROGRAMS
ALKALI METAL COMPOUNDS
BEAM INJECTION
CONFINEMENT
HEATING
HIGH-FREQUENCY HEATING
HYDRIDES
HYDROGEN COMPOUNDS
INSTABILITY
LABORATORY EQUIPMENT
LITHIUM COMPOUNDS
PLASMA
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PUMPS
THERMONUCLEAR REACTORS
VACUUM PUMPS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production