Under the condition of magnetic confinement, the paper analyzes the followi
ng discharge processes from CO gas: (I) the variation of electron energy di
stribution; (2) the impact excitation rates of electron for the vibrational
CO molecules; and (3) the vibrational-state population of CO molecule and
small-signal gain. Our results show that, by adding magnetic field, the ele
ctron density increases greatly in the energy region corresponding to the m
aximum electron cross sections of CO molecule, while the electron impact on
excitation rates also increases. At the same time, the vibrational-state p
opulation of CO molecule and the laser small-signal gain of every vibration
al level are also higher than that without magnetic field. (C) 2001 Publish
ed by Elsevier Science Ltd.