Abstract
A pulse (∼200 µs) of electron beam (0.3∼1.5 kV, 2∼20 mA) is injected into Argon gas (10-5∼10-4Torr) in a magnetic field (50∼300 G). A two-stream instability develops from low frequency (∼MHz) to high frequency (∼100 MHz) in proportion to the increase of the plasma frequency. When the instability frequency reaches the cyclotron frequency, the wave energy is rapidly transferred by cyclotron damping to the plasma and an ionization avalanche (beam plasma discharge) occurs.
Original language | English (US) |
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Pages (from-to) | 173-176 |
Number of pages | 4 |
Journal | Japanese Journal of Applied Physics |
Volume | 29 |
Issue number | 1 R |
DOIs | |
State | Published - Jan 1990 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Physics and Astronomy
Keywords
- Beam plasma discharge
- Cyclotron damping
- Electron heating
- Two stream instability