MAGNETIC IGNITION OF PULSED GAS DISCHARGES IN AIR OF LOW PRESSURE IN A COAXIAL PLASMA GUN
Technical Report
·
OSTI ID:4061786
The effect of an axial magnetic field on the breakdown voltage of a coaxial system of electrodes was previously investigated. For low values of gas pressure times electrode spacing, the breakdown voltage was decreased by the application of the magmetic field. The electron cyclotron radius now aasumes the role held by the mean free path in nonmagnetic discharges and the breakdown voltage becomes a function of the magnetic flux density. The dependence of the formative time lag as a function of the magnetic flux density is established and the feasibility of using a magnetic field for igniting high-voltage, high-current discharges is shown through theory and experiment. With a 36 microfarad capacitor bank charged to 48,000 volts, a peak current of 1.3 x 10/sup 6/ amperes in a coaxial type of plasma gun was achieved with a current rise time of only 2 microseconds. (auth)
- Research Organization:
- National Aeronautics and Space Administration. Langley Research Center, Langley Field, Va.
- NSA Number:
- NSA-15-023000
- OSTI ID:
- 4061786
- Report Number(s):
- NASA-TN-D-910
- Country of Publication:
- United States
- Language:
- English
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