Accession Number:

AD0466629

Title:

MOMENTUM TRANSFER APPROXIMATION FOR THE CALCULATION OF MOLECULAR TRANSITION PROBABILITIES IN HIGH TEMPERATURE GAS KINETIC COLLISIONS.

Descriptive Note:

Research note,

Corporate Author:

HELIODYNE CORP LOS ANGELES CA

Personal Author(s):

Report Date:

1965-06-01

Pagination or Media Count:

66.0

Abstract:

A straightforward method, the momentum transfer approximation, is proposed for the determination of the probabilities of inelastic non-electronic processes in high temperature gas kinetic collisions. The method is based on a very direct transcription of the physical features of high energy impacts into the transition probability formalism, and is closely similar to the Impulse approximation of nuclear physics. The model makes the assumption that the collision can be treated as quasi-impulsive, in the sense that the intramolecular binding and motions can be neglected during the collision. The momentum transfer approximation is applicable to polyatomic as well as diatomic molecules. It permits the computation of simultaneous rotation-vibration transitions, as well as dissociative transitions for any intermolecular interaction potential, and therefore, has wider applicability than most existing quasi-impulsive collision models. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE