Cl+HBr Pulsed Chemical Laser: A Theoretical and Experimental Study

Autor:	J. Richard Airey
Rok vydání:	1970
Předmět:	Exothermic reaction Hydrogen Photodissociation Analytical chemistry General Physics and Astronomy chemistry.chemical_element Chemical laser Laser law.invention Reaction rate Chemical species chemistry law Flash photolysis Physical and Theoretical Chemistry
Zdroj:	The Journal of Chemical Physics. 52:156-167
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.1672660
Popis:	The most powerful and efficient pulsed chemical lasers produced to date have resulted from the simple exothermic reactions between halogen atoms and hydrogen halides. These reactions have been initiated by flash photolysis. One such reaction is Cl+HBr→HCl+Br, − ΔH = 15.5 kcal/mole. A kinetic model has been developed for this laser system which calculates the intensity profile of the laser pulse as a function of time. The input data for the model include estimates of the reaction rate into the zeroth and first vibrational level of HCl and cross sections for collisional deactivation by the different chemical species in the laser medium. The rate of reaction into the second vibrational level of HCl is assumed to be zero. Any small finite rate into the second level would have a negligible effect on the calculated performance of the laser which operates only on the V(1 → 0) fundamental transition of HCl. The theoretical model also requires as input data the photolysis flash intensity profile, the cavity geomet...
Databáze:	OpenAIRE
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