Experimental testing bench for the diagnostics of plasma generated by pulsed guns with the dielectric surface breakdown

• Дата: 2021
• Автори: Vinnikov, D.V., Katrechko, V.V., Yuferov, V.B., Tkachev, V.I., Petrenko, S.A., Fomin, V.T.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2021
• Назва видання: Вопросы атомной науки и техники
• Теми: Relativistic and nonrelativistic plasma electronics
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/195128
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Experimental testing bench for the diagnostics of plasma generated by pulsed guns with the dielectric surface breakdown / D.V. Vinnikov, V.V. Katrechko, V.B. Yuferov, V.I. Tkachev, S.A. Petrenko, V.T. Fomin // Problems of Atomic Science and Technology. — 2021. — № 4. — С. 18-23. — Бібліогр.: 5 назв. — англ.

The experimental testing bench “ETB-PG” was designed to study the operation of plasma guns. The constructional design of plasma guns with replaceable dielectric operating on the surface sparkover basis has been proposed. Discharge currents and voltages under atmospheric and vacuum conditions have been determined. The two types of discharges were detected in the pressure range varying from the atmospheric value to 10⁻⁵ Torr. An experimental Paschen curve has been plotted. A statistical dependence of the types of discharges on the number of pulses, the pressure in the chamber, and the breakdown voltage has been established. The results of optical studies of the plasma flow generated by plasma guns in the vacuum of 2∙10⁻⁴ to 2∙10⁻⁵ Torr have been presented. The propagation velocity of the plasma flow in axial and radial directions has been measured. The glow time of the injected plasma was determined for different types of the discharges. The spectrograms of the composition and degree of the plasma ionization have been obtained.