Cumulation of a high-current electron beam at nanosecond high-volyage discharge in a low-pressure diode
The results of an experimental study of the effect of the cumulation of a beam of runaway electrons formed in a high-voltage nanosecond discharge at low-pressure air are presented. Optimal conditions of the effect in the discharge gap with a geometry tubular cathode - a grounded flat anode were realized at air pressure of 5 Pa and a gap length of 2.75 mm. An electrons beam current pulse behind a flat anode made of an aluminum foil was recorded with a high (up to 80 ps) temporal resolution. It was found that, due to this effect, a through hole is formed in aluminum foil 20 μm thick after 2-3 discharge pulses. From the results obtained, it follows that the electrons energy of the second part of the current pulse of the beam is less as compare to the electrons energy of the first one.
Keywords
runaway electrons, high-voltage nanosecond discharge, effect of electrons beam cumulation, высоковольтный наносекундный разряд, убегающие электроны, эффект кумуляция пучка электроновAuthors
Name | Organization | |
Lomaev M.I. | Institute of High Current Electronics Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State University | lomaev@loi.hcei.tsc.ru |
Tarasenko V.F. | Institute of High Current Electronics Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State University | VFT@loi.hcei.tsc.ru |
Diatlov A.V. | National Research Tomsk State University | ruyga.hideki.sasha@gmail.com |
References
Cumulation of a high-current electron beam at nanosecond high-volyage discharge in a low-pressure diode | Izvestiya vuzov. Fizika. 2019. № 6. DOI: 10.17223/00213411/62/6/68