Electron Energy Deposition in Atmospheric Gases.
Abstract
To compute state-by-state electron-impact cross sections, energy loss functions, and secondary electron distributions in energy regions where little or no experimental data exist, an electron energy deposition code (HARMONY) was developed that extends the available low-energy (below 1 to 10 keV) state-by-state calculations out to 10 MeV. The resulting energy loss functions agree quite well with the available experimental or theoretical data. The HARMONY code is presented and the energy regions for each of nine atmospheric gases are discussed for which a Born approximation and a modified Born approximation were used. Since the HARMONY code is based on the University of Florida Aeronomy Group's AURORA code, a low-energy code, emphasis is placed on the improvements made for intermediate and high energies, which include a bremsstrahlung loss and relativistic modifications. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1973
- Accession Number
- AD0769909
Entities
People
- Peter W. Lunn
Organizations
- Air Force Research Laboratory