Turbulent plasma heating. Final report, 1 Jul 76-30 Sep 79
This research involved measurements of plasma heating using electron beams, anomalous dc resistivity, and double layers. In addition, the development of a compact x-ray source is being investigated. An extensive set of measurements of the interactions of an electron beam with a collisionless plasma is summarized. It is found that the two stream electron wave decays into a large amplitude ion wave and an electron wave. The ion wave beats with the two stream electron wave and produces a short wavelength electron wave. This beat wave traps and heats the thermal electrons. The efficiency of conversion of beam energy to plasma energy is found to be less than one percent. Steady state anomalous dc resistivity has been investigated in a double plasma device. The spectra of the turbulence and the level of anomalous dc resistivity has been investigated in a double plasma device. The spectra of the turbulence and the level of anomalous dc resistivity are in fair agreement with theory. Another device was constructed which will be used to investigate anomalous dc resistivity at much higher currents and electric fields. Preliminary measurements were made of very large amplitude double layer formation in other experiments. Finally, we are constructing a very high power gas puff z pinch. We will measure the time history of x-ray emission from this device.
- Research Organization:
- California Univ., Davis (USA). Dept. of Applied Science
- DOE Contract Number:
- F49620-76-C-0014
- OSTI ID:
- 6769829
- Report Number(s):
- AD-A-082228
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BEAM INJECTION HEATING
HEATING
PLASMA HEATING
PINCH EFFECT
TURBULENT HEATING
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRON BEAMS
ELECTRON PLASMA WAVES
ENERGY TRANSFER
ION PLASMA WAVES
TURBULENCE
TWO-STREAM INSTABILITY
X-RAY SOURCES
BEAMS
ELECTRICAL PROPERTIES
EQUIPMENT
INSTABILITY
ION WAVES
LEPTON BEAMS
PARTICLE BEAMS
PHYSICAL PROPERTIES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA WAVES
RADIATION SOURCES
X-RAY EQUIPMENT
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production