Electron Excitation of O(2) Metastables in O(2)-N(2) Mixtures and of Free-Free Radiation in Argon.
Abstract
Measurements have been made of electron excitation coefficients for the production of O2(a(1)delta) metastables in mixtures of O2 and N2 for a range of mixture ratios and mean electron energies. The results are in agreement with calculations using the best available electron collision cross sections sets provided proper allowance is made for cascading from high excited states. Measurements have been made of coefficients for the production of free-free photons (Bremsstrahlung) as a result of the collisions of electrons with argon atoms. These measurements were made under the carefully controlled conditions of the electron drift tube. The mean electron energy was varied from 1.4 to 4.2 eV and the wavelength was varied from 500 nm to 1.3 nm. The results are in agreement with theory to within the experimental uncertainty of + or - 20%.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1982
- Accession Number
- ADA115818
Entities
People
- Arthur V. Phelps
- C. Yamabe
Organizations
- National Institute of Standards and Technology