ABSOLUTE MEASUREMENTS OF THE I2(X) HIGH VIBRATIONAL LEVELS IN THE OXYGEN-IODINE REACTION

B. BARNAULT; A.J. BOUVIER; D. PIGACHE; R. BACIS

doi:doi:10.1051/jp4:19917173

Numéro		J. Phys. IV France Volume 01, Numéro C7, Décembre 1991 2nd International Conference Laser M2P


Page(s)		C7-647 - C7-650
DOI		https://doi.org/10.1051/jp4:19917173

2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-647-C7-650
DOI: 10.1051/jp4:19917173

ABSOLUTE MEASUREMENTS OF THE I₂(X) HIGH VIBRATIONAL LEVELS IN THE OXYGEN-IODINE REACTION

B. BARNAULT¹, A.J. BOUVIER², D. PIGACHE¹ and R. BACIS²

¹ Office National d'Etudes et de Recherches Aérospatiales, BP. 72, F-92322 Châtillon cedex, France
² Laboratoire de Spectroscopie Ionique et Moléculaire, Université Lyon I, 43 boulevard du 11 novembre 1918, F-69622 Villeurbanne, France

Abstract
The dissociation with of I₂ by O₂ ([MATH]) in a Chemical Oxygen Iodine Laser (COIL) cannot occur a single collision. A two-step model where the excited intermediate species is identified with the vibrational states of I₂X(O⁺_g), with V between 30 and 43, has been proposed. The existence of these species has already been checked by using laser fluorescence excitation spectroscopy. The aim of this work is to perform absolute measurements of the iodine vibrational levels populations along the reaction zone in order to have a better understanding of the dissociation mechanism.