Updated Excitation and Ionization Cross Sections for Electron Impact on Atomic Oxygen
Abstract
Cross sections for the excitation and ionization of atomic oxygen by electron impact are presented as the result of a critical review of experimental and theoretical work on this subject. An effort has been made to compile the most accurate and complete set of cross sections available. More than 60 profiles of excitation cross sections versus electron-impact energy are presented. These include transitions to the forbidden metastable O(1D) and O(1S) states, the allowed autoionizing O(2p5 3po) state, nine allowed Rydberg series, and twenty nine forbidden Rydberg series. Recommended ionization cross sections for transitions to the outer electron ionization states o+ (4so), o+(2do), and o+(2po), to the inner electron ionization state o+(4p), and to the o2+ state are also given. Many of these excitation and ionization cross sections are based on recently published laboratory measurements, and differ from previously accepted values by factors of approx. 2-3, and in a few cases by up to a factor of 10. Keywords: Electron impact excitation, Electron impact ionization, Cross sections, Atomic oxygen, Electron energy deposition.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 29, 1988
- Accession Number
- ADA206987
Entities
People
- Forrest R. Gilmore
- Russ R. Laher