dc.creator Alamichel, C. en_US dc.creator Picard-Bersellini, A. en_US dc.date.accessioned 2006-06-15T14:15:24Z dc.date.available 2006-06-15T14:15:24Z dc.date.issued 1979 en_US dc.identifier 1979-RH-03 en_US dc.identifier.uri http://hdl.handle.net/1811/10943 dc.description $^{1}$ A. Picard-Bersellini, These Paris XI, 1976, $^{2}$ A. Picard-Bersellini and C. Rossetti, Spectrochimica Acta 32A, 1725, (1976), $^{3}$ R. J. Harrach and T.H. Einwohner : Four temperature model for a $CO_{2}$ laser amplifier UCRL - 51399 (30 May, 1973). en_US dc.description Author Institution: en_US dc.description.abstract In previous publications (1,2) one of us has given experimental results about vibroluminescence of $N_{2}O$ excited by activated nitrogen. In the present work we apply to the preceding results the Lawrence Livermore kinetic model of $CO_{2}$ laser (3) whose physical assumptions are: - each mode is described by a vibrational temperature, - the population of the higher excited states is sufficiently low the anharmonicity may be neglected, - energy transfer taken into account are: . between $N_{2}$ and $N_{2}O\nu_{3}$ mode ($\Delta v = \pm 1$ and $\Delta v_{3} = \pm 1$) . between $N_{2}O\nu_{3}$ and $\nu_{2}$ modes ($\Delta v_{2} = \pm 3$ and $\Delta v_{3} = \pm 1$) . $v \rightarrow T$ transfer between $\nu_{2}$ mode and translational energy ($\Delta v_{2} = -1$) - rate constants for the above transfers are given by Landau-Teller cross sections. we have changed the preceding assumption about the $\nu_{3} \rightarrow \nu_{2}$ transfer: in our program we take into account the different paths in the decay of the $\nu_{3}$ mode according to the collision reaction: $N_{2}O(001) + M \rightarrow N_{2}O (0m0) +$M Through a least square method giving the optimum values of the rate constants, we have found that, around $400^{\circ} K$, the process m = 3 is dominating and that the process with m = 2 is more important than the process with m = 4 or 1, this last one being negligible. en_US dc.format.extent 116479 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title RATE CONSTANT OF VIBRATIONAL TRANSFER FROM THE $nu_{3}$ MODE TO THE $\nu_{1}$ AND $\nu_{2}$ MODES OF $N_{2}O$ en_US dc.type article en_US
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