In this work, laboratory-scale laser isotope separation of 13 C by isotope-selective multi-photon dissociation of CF2HCl gas molecules has been done. To do this, the pulses of a tunable TEA CO2 laser, which have been shortened using a plasma shutter, were focused inside the irradiation cell with fluence in 50 J/cm 2 . The irradiation cell was filled with 10-20 mbar of CF2HCl gas with CF2HCl:He ratio of 1:5 and 1:10. It has been shown that the abundance of 13 C in C2F4 product of dissociation increases with decreasing of the gas pressure and the number of the incident pulses. In these experiments, the highest abundance of 13 C isotope was obtained with CF2HCl: He ratio of 1:5 and ten mbar pressure of CF2HCl gas, irradiated by 1500 pulses with 50 J/cm 2 fluences.
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