Description Of A Measurement Program For Determining Excitation Cross Section Values Of Exhaust Species

Michael G. Dunn; John A. Lordi; Stephen Zakanycz

doi:10.1117/12.934232

12 July 1983 Description Of A Measurement Program For Determining Excitation Cross Section Values Of Exhaust Species

Michael G. Dunn, John A. Lordi, Stephen Zakanycz

Proceedings Volume 0366, Modern Utilization of infrared Technology VIII; (1983) https://doi.org/10.1117/12.934232
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

A measurement program currently underway at Calspan to determine the excitation cross section (σ*) for the interaction of CO2 and H2O molecules with atomic oxygen is described. A shock-tube technique is used to drive a monoenergetic stream of atomic oxygen, in a helium plus argon diluent, into a jet of target gas injected normal to the incident beam. Subsequent radiation resulting from the collisional interaction of the highly expanded beams is observed immediately downstream using a filtered indium antimonide detector. With this experimental technique, measurements have been obtained for interaction velocities in the range of 4.5 to 7 km/sec.

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Michael G. Dunn, John A. Lordi, and Stephen Zakanycz "Description Of A Measurement Program For Determining Excitation Cross Section Values Of Exhaust Species", Proc. SPIE 0366, Modern Utilization of infrared Technology VIII, (12 July 1983); https://doi.org/10.1117/12.934232

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