Determination of Vibrational Relaxation Rates from Decay Constants
Abstract
The vibrational relaxation process of a molecule plays an important role in the processes of high speed gasdynamics, chemodynamics and ultrasound, especially in the molecular laser. A lot of relaxation experiment data have been accumulated. However, only some macroscopic physical quantities are able to be measured in experiments; or instance, in a shock tube or laser fluorescence experiment, the relaxation process of a corresponding vibrational mode can be monitored by observing the variation of a spectral radiation with time. This variation follows the form of I - I infinity = I0e lambda t, except in the beginning short moment. The decay constants, lambda, contain information of various relaxation rates of the system. However, this does not simply represent the rate of one particular process, except for a pure biatomic molecule. This paper presents the topic of how to determine the relaxation rate from decay constants.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 08, 1988
- Accession Number
- ADA197425
Entities
People
- Yan Haixing
Organizations
- National Air and Space Intelligence Center