Backward runaway electrons in a subnanosecond air discharge at atmospheric pressure. (13th November 2015)

• Record Type: Journal Article
• Authors: Tarasenko, Victor F.; Kostyrya, Igor' D.; Beloplotov, Dmitry V.
• Is Part Of: Laser and particle beams. Volume 34:Number 1(2016)
• Page Start: 23
• Page End: 30
• Publication Date: 2015-11-13
• Subjects: Atmospheric pressure air, -- Nanosecond discharge, -- Runaway electrons beam, -- X-rays; Laser beams -- Periodicals; Particle beams -- Periodicals; 535.5
• DOI: 10.1017/S0263034615000907
• Languages: English
• ISSNs: 0263-0346

Abstract

Abstract: In the paper, we study the conditions for the generation of backward runaway electrons through a grounded grid cathode in atmospheric pressure air at high-voltage pulses with a full width at half maximum of 1 ns and risetime of 0.3 ns applied to the gap from a SLEP-150 pulser. The study confirms that backward runaway electrons and X-rays do arise near grid cathodes in atmospheric pressure air. It is shown that the current of the backward beam and the X-rays from the gas diode depend differently on the interelectrode distance. The average X-ray exposure dose in a pulse is more than 3.5 mR.