Laser-induced discharge characteristics in low vacuum with residual helium gas and air

Author

Okubo, H. ; Ota, K. ; Yuasa, S. ; Hayakawa, N. ; Hikita, M.

Author_Institution

Nagoya Univ., Japan

Volume

2

fYear

1996

fDate

21-26 Jul 1996

Firstpage

683

Abstract

This paper describes the fundamental characteristics of TEA-CO₂ laser-induced plasma in low vacuum. Experimental results revealed that there existed a threshold pressure for the laser-induced plasma production in He gas and air in low vacuum. The pressure dependence of shape and intensity of plasma was observed and discussed. Laser-triggered breakdown characteristics under uniform field were also measured in atmospheric air

Keywords

carbon compounds; discharges (electric); electric breakdown; gas lasers; insulation testing; plasma production by laser; vacuum breakdown; vacuum insulation; CO₂; TEA-CO₂ laser; discharge characteristics; insulation breakdown testing; laser-induced plasma production; laser-triggered breakdown; plasma intensity; plasma shape; uniform electric field; vaccum insulation breakdown; Chemical lasers; Electric breakdown; Fiber lasers; Gas lasers; Helium; Laser stability; Plasma measurements; Plasma properties; Plasma stability; Production;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on

Conference_Location

Berkeley, CA

Print_ISBN

0-7803-2906-6

Type

conf

DOI

10.1109/DEIV.1996.545451

Filename

545451