Accession Number : AD0746376

Title :   Atmospheric Pressure Pulsed CO2 Laser Utilizing Preionization by High-Energy Electron,

Corporate Author : DEFENCE STANDARDS LABS MARIBYRNONG (AUSTRALIA)

Personal Author(s) : Garnsworthy,R. K. ; Mathias,L. E. S. ; Carmichael,C. H. H.

Report Date : 08 OCT 1971

Pagination or Media Count : 3

Abstract : An atmospheric-pressure pulsed CO2 laser is described in which the gas is preionized by the injection of high-energy electrons into the laser volume. These electrons are derived from a high-voltage (120-kV) glow discharge surrounding the laser. The preionization achieved has allowed 300 J to be delivered to 1.7 liter of gas in a single discharge without the development of arcs, irrespective of whether the gas contained helium. The highest output energy (20 J) was obtained with a mixture of CO2, N2, and He in the proportions 3:3:4 by volume. (Author)

Descriptors :   (*GAS LASERS, CARBON DIOXIDE), (*INFRARED LASERS, EXCITATION), IONIZATION, ELECTRIC DISCHARGES, ELECTRON BEAMS, PERFORMANCE(ENGINEERING), AUSTRALIA

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE