Title :
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
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;
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
DOI :
10.1109/DEIV.1996.545451
