Photochemical isotope separation

Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy

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423 3, B01D 5900

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active

046612211

ABSTRACT:
A process for separating isotopes by selective excitation of isotopic species of a volatile compound by tuned laser light. A highly cooled gas of the volatile compound is produced in which the isotopic shift is sharpened and defined. Before substantial condensation occurs, the cooled gas is irradiated with laser light precisely tuned to a desired wavelength to selectively excite a particular isotopic species in the cooled gas. The laser light may impart sufficient energy to the excited species to cause it to undergo photochemical reaction or even to photoionize. Alternatively, a two-photon irradiation may be applied to the cooled gas to induce photochemical reaction or photoionization. The process is particularly applicable to the separation of isotopes of uranium and plutonium.

REFERENCES:
patent: 3443087 (1969-05-01), Robieux et al.
patent: 3558877 (1971-01-01), Pressman
patent: 3713030 (1973-01-01), Kantrowitz
Gerry, "Gasdynamic Lasers", IEEE Spectrum, (Nov. 1970) vol. 7, No. 11, pp. 51-58.
Kataev et al, "Spectroscopy of Vapors of Low-Volatility Compounds Supercooled in a Supersonic Stream", Sov. Phys.-JETP, vol. 37, #5 (Nov. 1973) pp. 772-777.
Milne et al, "Molecular Beams in High Temperature Chemistry", in Eyring Ed, Adv. High Temp. Chem., vol. 2 (1969) pp. 107-150.
Vallach et al, "Transverse Excitation Pulsed Laser in Gas Dynamically Cooled Mixtures", App. Phys. Lett., vol. 20, #10 (1972) pp. 395-398.
Farrar et al., "Photochemical Isotope Separation as Applied to Uranium", Report #K-L-3054, Rev. 1, Mar. 15, 1972.
Hagena et al, "Untersuchung der Thermischen Relaxation . . . ", Z. Naturforsch., 15a (1960), pp. 851-858.
Hartmanshenn et al, "Reduction of Uranium Hexafluoride", Chem. Abstracts, vol. 75, 1971, Abs. #94217z.
Kidder, "Isotope Separation by Means of Selective Photoexcitation", Lawrence Livermore Labs., QD-7-2-98 (Nov. 1972).

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