Multiple particle type interaction isotopically selective...

Details Multiple particle type interaction isotopically selective... Multiple particle type interaction isotopically selective...

B - Operations, Transporting

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204/91.8

B01D 57/00 (2006.01) B01D 59/34 (2006.01) H01J 49/10 (2006.01)

Patent

CA 1067037

A B S T R A C T Method and apparatus for impact ionization of particles excited with isotopic selectivity, particularly for use in a system of uranium isotope separation and enrichment. Efficient impact ionization is achieved by first selectively exciting vaporized particles of the desired isotope in a beam of finely tuned laser radiant energy. The energies of the interacting photons are selected to produce a total energy shift during excitation which is slightly less than the ionization energy for the selected isotope. The excited isotope will thus be raised to an excitation level only slightly below the ionization level. This level is selected to permit efficient ionization, particle collisional ionization, between energetic particles in the uranium vapor environment and the highly excited particles of the desired isotope type.

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