18 April 2009 A new measurement of the singlet delta pooling rate
Author Affiliations +
Proceedings Volume 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 71312L (2009); doi: 10.1117/12.816746
Event: XVII International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2008, Lisboa, Portugal
Abstract
The singlet delta pooling rate has been measured in a chemical generator using gas phase laser Raman spectroscopy. The measured rate is four times the currently accepted pooling rate constant. Our measurement also agrees with recent ab initio rate calculations. This rate is one of the most important losses in the COIL laser and is believed responsible for the production of vibrationally excited singlet delta oxygen. The vibrationally excited oxygen is thought to play a role in the iodine dissociation process. A higher rate for this process will enhance dissociation at the cost of increased transport losses. The previous experimental measurement was reviewed and an over simplification of the data analysis identified.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William E. McDermott, Keith Hobbs, Thomas Henshaw, "A new measurement of the singlet delta pooling rate", Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71312L (18 April 2009); doi: 10.1117/12.816746; https://doi.org/10.1117/12.816746
PROCEEDINGS
11 PAGES


SHARE
KEYWORDS
Oxygen

Raman spectroscopy

Chlorine

Gas lasers

Microwave radiation

Chemical oxygen iodine lasers

Iodine

RELATED CONTENT

Current status of COIL research in Germany
Proceedings of SPIE (March 29 1996)
Chemical generation of atomic iodine for COIL
Proceedings of SPIE (May 06 2002)
History of COIL development in Japan: 1982-2002
Proceedings of SPIE (May 06 2002)
A new project for developing a prototype COIL module at...
Proceedings of SPIE (November 10 2003)
Multikilowatt supersonic chemical oxygen-iodine laser
Proceedings of SPIE (March 31 1995)
German COIL efforts: status and perspectives
Proceedings of SPIE (May 06 2002)

Back to Top