Abstract
Nanosecond discharges in air are investigated at pressures in the range 10-100 torr with a current density of (1-5). 10**3 A/cm**2. The results show that a high-conductivity spark channel is initiated by a cathode spot a certain time after the initiation of the discharge. The duration of discharges without spots is measured. A mechanism for the appearance of a spot based on an instability of the cathode sheath caused by field emission from microscopic protuberances is discussed.
Original language | English |
---|---|
Pages (from-to) | 236-238 |
Number of pages | 3 |
Journal | Soviet physics. Technical physics |
Volume | 24 |
Issue number | 2 |
Publication status | Published - Feb 1979 |
ASJC Scopus subject areas
- Engineering(all)