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U.S. Department of Energy
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IONIZATION EXPERIMENT ON AN ELECTRODELESS DISCHARGE WITH TOROIDAL GEOMETRY

Technical Report ·
OSTI ID:4819364
Measurements were made concerning the initial breakdown of a gas subjected to an electrodeless discharge in a toroidal geometry with the magnetic field in the longitudinal direction. The current through a ring conductor embracing the toroidal discharge tube established the rotational transform required for plasma equilibrium. Smear photographs of the discharge were made, looking through the discharge tube in a plane which passes through the torus axis. Simultaneous measurements of light intensity (by photomultipliers) and of the magnetic field in the gas showed that the initial breakdown occurs at a time when the magnetic field is zero. The data allowed an interpretation in which the plasma has the form of a shell. Marginal breakdown conditions were measured. (auth)
Research Organization:
Giannini Scientific Corp., Santa Ana, Calif.
NSA Number:
NSA-16-007192
OSTI ID:
4819364
Report Number(s):
AFOSR=ulik
Country of Publication:
United States
Language:
English