J. Phys. IV France 01 (1991) C7-647-C7-650
ABSOLUTE MEASUREMENTS OF THE I2(X) HIGH VIBRATIONAL LEVELS IN THE OXYGEN-IODINE REACTIONB. 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
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.
© EDP Sciences 1991