Synthesis of the Plasma Chemistry Occurring in High Power CO2 Lasers
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
Pagination or Media Count:
The neutral chemistry of the following mixtures have been studied by using a quadrupole mass spectrometer and a theoretical model CO2Ar, N2Ar, CO2N2Ar, CO2HeAr, and CO2N2HeAr. Co2 dissociation occurs by direct electron impact and appears to depend on initial CO2 concentration and mixture. Very little N2 dissociation occurs in a pure N2 discharge however, dissociation of N2 increases when it is added to a mixture containing CO2. This dissociation is less than 1. Consequently, the dominant nitrogen oxide in mixtures containing CO2 and N2 is NO, and the concentration of NO never exceeds 1. The species CHO and CH2O are present at high discharge currents if there is a small amount of water contamination in mixtures containing CO2.
- Lasers and Masers
- Plasma Physics and Magnetohydrodynamics