Studies of the Vibrational Relaxation of Diatomic Molecules in a Shock Heated Molecular Beam and Its Application to Ionization by Electron Impact,
Abstract
The shock heated molecular beam technique was used to obtain vibrationally exicted oxygen, nitrogen and carbon monoxide molecules. The vibrational distribution of these diatomic molecules, in argon gas as the 'carrier' gas of a shock heated molecular beam, has been calculated by considering atomic recombination and collisional excitation-de-excitation during the expansion. The vibrationally excited molecules, which correspond to vibrational temperatures Tv, in the range 1800 K to 7000 K, are used to examine the role played by vibrational excitation in both direct and dissociative electron impact ionization cross sections, over a range of electron energies from 50-500 eV.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1981
- Accession Number
- ADP000276
Entities
People
- A. W. Yau
- B. Evans
- R. M. Hobson
- S. Ono
- S. Teii
Organizations
- University of York