Laboratory Studies of Atomic Collision Processes.
Abstract
Accomplishments: Dissociative recombination of O4(+) ions with electrons as a function of electron temperature. Development of computer codes to describe electron-energy gain and loss processes in plasmas heated by microwaves, including effects of inelastic collisions with molecules and spatially non uniform fields. Development of the rf conductivity method to determine electron and ion densities in plasmas at atmospheric neutral densities. Development of mass spectrometric techniques to analyze the ion composition of plasmas at high neutral densities. Measurements of electron ion recombination for several ionic species in atmospheric density helium plasmas. Development of computer codes to describe the decay of photoionized plasmas in a high neutral density environment. Measurements of the pressure dependence of positive ion negative ion recombination over the range from a few hundred Torr to 2 atmospheres. Measurements of the temperature dependence of the first and second steps in the clustering reactions of H2 CN(+) ions with HCN.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 26, 1987
- Accession Number
- ADA178591
Entities
People
- M. A. Biondi
- R. Johnsen
Organizations
- University of Pittsburgh