Electron emission mechanism during the nanosecond high-voltage pulsed discharge in pressurized air
- Department of Physics, Technion, 32000 Haifa (Israel)
A comparison between the results of x-ray absorption spectroscopy of runaway electrons (RAEs) generated during nanosecond timescale high-voltage (HV) gas discharge and the simulated attenuation of the x-ray flux produced by the runaway electron spectrum calculated using particle-in-cell numerical modeling of such a type of discharge is presented. The particle-in-cell simulation considered the field and explosive emissions (EEs) of the electrons from the cathode. It is shown that the field emission is the dominant emission mechanism for the short-duration (<2.5 ns) high-voltage pulses, while for the long-duration (>5 ns) high-voltage pulses, the explosive emission is likely to play a significant role.
- OSTI ID:
- 22025448
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 8 Vol. 100; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Space- and time-resolved characterization of nanosecond time scale discharge at pressurized gas
Recent studies on nanosecond-timescale pressurized gas discharges
X-ray diagnostics of runaway electrons generated during nanosecond discharge in gas at elevated pressures
Journal Article
·
Fri Apr 01 00:00:00 EDT 2011
· Journal of Applied Physics
·
OSTI ID:21538219
Recent studies on nanosecond-timescale pressurized gas discharges
Journal Article
·
Tue Oct 04 20:00:00 EDT 2016
· Plasma Sources Science and Technology
·
OSTI ID:1332318
X-ray diagnostics of runaway electrons generated during nanosecond discharge in gas at elevated pressures
Journal Article
·
Sun Jan 08 23:00:00 EST 2012
· Applied Physics Letters
·
OSTI ID:22025406