| Issue |
J. Phys. Colloques
Volume 41, Number C9, Novembre 1980
Third International Symposium on Gas-Flow and Chemical Lasers
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|---|---|---|
| Page(s) | C9-363 - C9-369 | |
| DOI | https://doi.org/10.1051/jphyscol:1980950 | |
Third International Symposium on Gas-Flow and Chemical Lasers
J. Phys. Colloques 41 (1980) C9-363-C9-369
DOI: 10.1051/jphyscol:1980950
1 Gruppo Nazionale di Elettronica Quantistica e Plasmi del C.N.R.
2 Istituto di Fisica, Università di Parma, Italy.
3 Istituto di Fisica, Facoltà di Ingegneria di Napoli, Italy.
J. Phys. Colloques 41 (1980) C9-363-C9-369
DOI: 10.1051/jphyscol:1980950
PLASMA INSTABILITY IN HIGH-POWER CO2 LASER AMPLIFIERS
R. Bruzzese1, S. Solimeno1, G.L. Braglia2, S. Martelluci3 et J. Quartieri31 Gruppo Nazionale di Elettronica Quantistica e Plasmi del C.N.R.
2 Istituto di Fisica, Università di Parma, Italy.
3 Istituto di Fisica, Facoltà di Ingegneria di Napoli, Italy.
Abstract
In the present paper a general model of plasma instabilities m high-power e-beam sustained CO2 laser amplifiers is illustrated. This model improves the Nighan-Haas one by allowing explicitly for the various degrees of vibrational freedom and taking into account the stabilizing effect of the laser field intensity. Two numerical codes, which have been used to calculate the steady-state plasma properties needed to carry out the stability analysis, are also presented. The model has been used to test the degree of thermal and ionic instability of an EDCL device using four-component gas mixture (CO2 - N2 - He-CO).