Evaluation of Rocket Flame Emissions for Military Surveillance Applications.
Abstract
The purpose of the reported research was to study the quantitative determination of the chemical mechanisms which are responsible for CO fourth positive radiation in the vacuum ultraviolet; such radiation is of importance for military surveillance purposes because it has been detected in flames. The vacuum ultraviolet chemiluminescence from photolyzed (C3O2/0 and C3O2/NO2 mixtures in a fast flow system has been measured and identified as the CO fourth positive (A singlet Pi to X singlet Sigma) system. Photolysis of C3O2 provided a means of generating the C2O radicals in concentrations which could be varied by adjusting the C3O2 flow rate or the flash energy. Chemiluminescence was found to require the presence of ground state atomic oxygen. The results indicate that the observed chemiluminescence was due to chemiexcitation of CO(A singlet Pi). The rate of decay of chemiluminescent emission following photolysis has been measured. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1972
- Accession Number
- AD0893865
Entities
People
- William L. Shackleford
Organizations
- TRW Inc.