Separation of isotopes by photo-induced predissociation

Details Separation of isotopes by photo-induced predissociation Separation of isotopes by photo-induced predissociation

1975-12-22

1980-07-15

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204DIG11, B01J 110

Patent

active

042127173

ABSTRACT:
Isotopically enriched material can be produced by photopredissociation of gaseous formaldehyde containing mixtures of isotopes of C, H, or O, by laser beams at 32980 cm.sup.-1 or at 32890 cm.sup.-1, or by an argon-ion laser beam at 351.1 nm, or by the tripled frequency of a 1.06 .mu.m neodymium-glass laser beam at approximately 0.35 .mu.m. At wavelengths shorter than 330 nm a paramagnetic gas, especially NO and also O.sub.2 may enhance the enrichment and yield.

REFERENCES:
patent: 3983020 (1976-09-01), Moore et al.
Letokhov, Science, vol. 180 (4 May 73), No. 4085, pp. 451, 455 & 456.

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