Vol. 1, No 2, 1995 pp. 160 - 170
UDC
573.5
INVESTIGATIONS OF THE ELECTRICAL DISCHARGE FORMATION MECHANISMS IN NITROGEN AND KRYPTON
Đ.A. Bošan1, M.K. Radović2, V.Ž. Zlatić3, T.V. Jovanović1
1Faculty of Electronic Engineering, PF 73, 18001 Niš, Yugoslavia
2Faculty of Philosophy, Department of Physics, PF 92, 18001 Niš, Yugoslavia
3Faculty of Civil Engineering, PF 115, 18001 Niš, Yugoslavia
Abstract. Different forms of the discharge formation mechanism and the corresponding formative times (tf) of electrical discharge in nitrogen and krypton-filled, cold electrode, diodes were investigated. Using the 1 mbar pressure and overvoltage of approximately 1% above the static breakdown value (Us), total formative times up to 103 s were obtained. In this particular case, the relaxation time of the diode, after previous glow (afterglow time τ), had to be longer than 48 hours.
Having in mind this fact, one can conclude on the importance of the step by step ionization and on the importance of the presence of neutral metastable molecules of nitrogen or krypton atoms in the process of discharge formation under given conditions.
ISTRAŽIVANJA MEHANIZAMA FORMIRANJA ELEKTRIČNOG PRAŽNJENJA U AZOTU I KRIPTONU
U radu su prezentovani rezultati istraživanja različitih varijanti mehanizama formiranja električnog pražnjenja u azotu i kriptonu, kao i odgovarajućeg vremena formiranja (tf). Istraživanja su vršena sa hladnim elektrodama, pod pritiskom od 1 mbar i sa prenaponima reda 1 %. Rezultati pokazuju da u ekstremnim uslovima, sa vremenom relaksacije diode od oko 48 Časova, totalno vreme formiranja pražnjenja može dostići vrednost od 103 s.
Dobijeni rezultati sugerišu važnost stepenaste jonizacije i uloge neutralnih, metastabilnih čestica prilikom formiranja električnog pražnjenja pri navedenim uslovima.
