Accession Number : AD0745450

Title :   Parametric Studies of the DF-CO2 Chemical Transfer Laser.

Descriptive Note : Technical rept. 10 Jun 70-3 Jun 71,

Corporate Author : CORNELL AERONAUTICAL LAB INC BUFFALO N Y

Personal Author(s) : Falk,Theodore J.

Report Date : JUN 1972

Pagination or Media Count : 77

Abstract : Parametric studies of the power output of a D2/F2/CO2 laser were performed. A transverse-flow nitric-oxide-initiated De/F2/CO2 laser was constructed and tested at various power levels up to 560 watts. It was found that: viscous and thermal boundary layers had negligible effect in 1 inch x 6 inch flow channel tested. With a fixed optical cavity and with constant flow rates of deuterium, fluorine, and carbon dioxide, the effects of nitric oxide flow rate, helium flow rate, and operating static pressure were interrelated in a manner which suggested 'tuning' of the D2-F2 reaction length to the length of the laser cavity. The pressure at which peak power was reached, however, increased with increasing helium flow rate. All data obtained with fixed ratio of CO2 flow rate to fluorine flow rate and with optimum NO flow rate could be correlated on the basis of chemical efficiency and a parameter called the equivalent pressure. (Author)

Descriptors :   (*GAS LASERS, CHEMICAL REACTIONS), REACTION KINETICS, POWER, GAS FLOW, CARBON DIOXIDE, NITROGEN OXIDES, DEUTERIUM, FLUORINE, HELIUM, PRESSURE, GAIN, EFFICIENCY

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE