METHOD OF LASER SEPARATION OF OXYGEN ISOTOPES Russian patent published in 2020 - IPC B01D59/00 

FIELD: technological processes.

SUBSTANCE: invention relates to a method for laser separation of oxygen isotopes and can be used to obtain isotopically enriched oxygen, as well as for subsequent synthesis of fluorine isotope ¹⁸F, important in medical diagnostics. Method includes irradiation of oxygen with resonant infrared radiation with wave length: 6.811 mcm; 3.431 mcm; 2.304 mcm; 1.741 mcm; 1.403 mcm; 1.178 mcm; 1.017 mcm; 897.0 nm; 803.5 nm or 728.8 nm; subsequent exposure to strong laser light of the optical or infrared range and intensity greater than 3×10¹³ W/cm², and extraction of formed positive ions, wherein the time between the effects of resonant infrared and laser radiation should not exceed the decay time of O₂ oscillatory state.

EFFECT: invention provides higher efficiency of oxygen isotope separation by laser radiation.

1 cl, 2 dwg