Bound-Bound Radiation/Collisional-Radiative Recombination in Oxygen and Nitrogen Plasmas
Abstract
Number densities of several excited states of atomic oxygen and nitrogen have been measured in the decaying non-thermal plasma of a theta-pinch afterglow. The spatial variation of the electron density and temperature as a function of time after the initiation of main bank discharge have also been measured to facilitate a comparison of excited state number densities with model calculations. Measurements of the atomic oxygen excited states indicate that quintet to triplet spin exchange collisions and doubly excited states must be included in the model. The measured populations of the excited atomic nitrogen states agree well with those calculated at high density but disagree badly at lower densities. The discrepancies seem to be real since they are larger than expected measurement uncertainty.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 13, 1975
- Accession Number
- ADA011491
Entities
People
- Larry A. Jones
Organizations
- United States Naval Research Laboratory