Electron swarm parameters in CO2laser gas mixtures
- 21 August 1976
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 9 (12) , 1727-1734
- https://doi.org/10.1088/0022-3727/9/12/012
Abstract
Electron swarm parameters for gas mixtures used in CO2 lasers have been measured experimentally for the first time, using a new UHV discharge chamber specially constructed for the purpose. Studies have been made on six laser gas mixtures with He, N2 and CO2 in the ratio 3:1:2, 8:1:1, 3:2:1, 30:7:1, 3:1/4:1, 3:1:1. Measurements of ionization coefficient and the ratio of radial diffusion coefficient to mobility in the range 14.1<or=E/N<or=282 Td are reported. A comparison is made with the theoretical calculations of Lowke et al. (1973); the experimental values are about 50% lower than the theoretical predictions at high E/N.Keywords
This publication has 7 references indexed in Scilit:
- A comparison of a Monte Carlo simulation and the Boltzmann solution for electron swarm motion in gasesJournal of Physics D: Applied Physics, 1975
- Predicted electron transport coefficients and operating characteristics of CO2–N2–He laser mixturesJournal of Applied Physics, 1973
- Electron swarm parameters in nitrogenJournal of Physics D: Applied Physics, 1973
- The measurement of the ratio of diffusion coefficient to mobility for electrons at low E/pJournal of Physics D: Applied Physics, 1972
- Electron Energy Distributions and Collision Rates in Electrically Excited, CO, and CPhysical Review A, 1970
- ELECTRON ENERGY DISTRIBUTION FUNCTIONS AND VIBRATIONAL EXCITATION RATES IN CO2 LASER MIXTURESApplied Physics Letters, 1969
- CW HIGH-POWER CO2–N2–He LASERApplied Physics Letters, 1965