Accession Number : AD0762201

Title :   Energy Transfer Reactions Involving Metastable Species of Atmospheric Interest.

Descriptive Note : Final rept.,

Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s) : Black,Graham

Report Date : 11 MAY 1973

Pagination or Media Count : 19

Abstract : Energy transfer reactions of electronically excited atomic and diatomic species were studied. The excited species were created by vacuum ultraviolet irradiation of simple molecules, with image-tube spectrographs and filtered photomultipliers being utilized to detect and monitor emission features. A pulsed photolysis-signal integration system was used to determine absolute rate coefficients for energy transfer reactions of O(singlet S), N2(A triplet Sigma(u)(+)), and N(doublet D). The variations of these rate coefficients with temperature were determined for application of quenching rate coefficients to various regions of the earth's atmosphere. One such application was to time-lag measurements of O(singlet S) emission in Type-B red aurora; O(singlet D) and CO(a triplet pi) were also studied. (Modified author abstract)

Descriptors :   (*UPPER ATMOSPHERE, REACTION KINETICS), OXYGEN, NITROGEN, ATOMS, DIATOMIC MOLECULES, TEMPERATURE

Subject Categories : Atmospheric Physics
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE