Isotopically selective dissociation of Freon 12 molecules in a single-frequency pulsed CO2 laser field

An experimental investigation was made of dependences of the dissociation selectivity and yield of 13CF2Cl2 molecules on the gas pressure, wavelength, radiation energy density, and laser pulse shape. The dissociation selectivity for the P20 line and a radiation energy density of 4 J/cm2 carried by short pulses (approx.100 nsec) was 35--95 at pressures of 1--20 Torr. The dissociation yield was 3--5% and the working pressure of the natural Freon was up to 10 Torr