Nanosecond discharge in air at atmospheric pressure as an x-ray source with high pulse repetition rates

The properties of x-ray radiation and runaway electrons produced using a nanosecond volume discharge are examined. X-ray radiation at a pulse repetition rate of 3kHz was obtained time in a gas diode filled with air at atmospheric pressure. The current pulse width (FWHM) for runaway electrons generated in the gas diode was ∼100ps. A prepulse was observed on an oscilloscope trace of the main runaway electron beam current.