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Anode plasma density measurements in a magnetically insulated diode

Journal Article · · Phys. Rev. Lett.; (United States)
The surface-flashover anode plasma in a magnetically insulated ion diode was investigated spectroscopically. From the Stark broadening of the neutral hydrogen H/sub ..beta../ line an average electron density of about 2 x 10/sup 15//cm/sup 3/ was observed in the < or approx. =1-mm anode plasma, 30 nsec into the 400--475-kV diode voltage pulse. Thereafter, the plasma front advanced into the diode gap at an average rate of 2 cm/..mu..sec. This may be explained by the ionization of neutral atoms injected into the gap during flashover.
Research Organization:
Laboratory of Plama Studies, Cornell University, Ithaca, New York 14853
DOE Contract Number:
AS08-81DP40139
OSTI ID:
6257273
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:10; ISSN PRLTA
Country of Publication:
United States
Language:
English