NUMERICAL MODELING OF A HE-KR COIL HOLLOW-CATHODE LASER

A theoretical study of a He-Kr laser (KrII, 469.4 nm line) pumped by a helical hollow cathode discharge is presented. A detailed kinetic mod el of plasma-chemical reactions and radiative processes including the influence of gas heating on the active medium is developed. In the pro cess of numerical calculations the dependence of the plasma parameters (electron and gas temperature, electron and metastable density, upper and lower laser level density) and laser characteristics (output powe r and gain coefficient) on the variations of discharge pumping, gas-mi xture partial pressures and geometry of the coil hollow cathode, are i nvestigated. The results of the numerical calculations are in a good a greement with the experimental data.