Research on Electron Rich Plasma Stability.
Final scientific rept. 1 Apr 70-30 Apr 71,
AVCO EVERETT RESEARCH LAB EVERETT MASS
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The report presents the final results of studies on electron rich plasmas. Studies have been conducted on the production and containment of electron rich plasmas in toroidal geometries. Electron densities in excess of 3 billioncc have been produced and contained from as much as 10 milliseconds. Studies also indicate that the optimum production of large electron densities without excessive wall bombardment should be attained with a triode type injection configuration wherein the energy investment in waves and electron temperature is minimized. This configuration should be located near the major axis of the apparatus. Containment is terminated when the ion density reaches about 20 percent of the electron density. The ions are shown to be produced from atoms which are released from the walls by electron bombardment associated with inefficiencies in the electron injection process. A technique for controlling this effect which involves electron prebombardment of the walls is described. Author
- Fusion Devices (Thermonuclear)
- Plasma Physics and Magnetohydrodynamics