| 摘要 |
Isotope enrichment by laser activation wherein a multi-isotopic element Q, like Uranium, Silicon, Carbon is incorporated into gaseous QFn, QF6, QF4, QOmFn, etc and diluted in gas G like He, N2, Ar, Xe, SF6 or other inert gas; and wherein that mixture is cooled by adiabatic expansion or other means encouraging formation of dimers QF6:G in a supersonic super-cooled free jet; and wherein that jet is exposed to laser photons at wavelengths that selectively excite predetermined molecules iQF6 to iQF6*, thereby inducing rapid VT conversions and dissociations of iQF6*:G→iQF6+G+kT, while leaving non-excited dimers jQF6:G intact; and wherein a skimmer separates the supersonic free-jet core stream containing heavier jQF6:G dimers from lighter core-escaped iQF6-enriched rim gases. Particularly an advanced technique is disclosed to enrich iUF6 by free jet expansion and isotope-selective dimerization suppression, utilizing a molecular CO laser and intra-cavity UF6 irradiation with laser lines overlapping predetermined iUF6 absorptions; and providing multiple free jet separator units irradiated by one laser beam, thereby enhancing process economics. |
