Isotope separation by multiphoton dissociation of molecules using high-power CO/sub 2/ laser radiation. Scaling of the process for carbon isotopes

Journal Article · Thu Apr 01 04:00:00 EST 1982 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1982v012n04ABEH012223· OSTI ID:6875306

Abdushelishvili, G I; Avatkov, O N; Bagratashvili, V N; Baranov, V Y; Bakhtadze, A B; Velikhov, E P; Vetsko, V M; Gverdtsiteli, I G; Dolzhikov, V S; Esadze, G G; Kazakov, S A; Kolomiiskii, Y R; Letokhov, V S; Pigul'skii, S V; Pis'mennyi, V D; Ryabov, E A; Tkeshelashvili, G I

Data are presented on multiphoton dissociation of halogenated methanes, CF/sub 3/I and CF/sub 3/Br, in a pulsed CO/sub 2/ laser field in the single-pulse irradiation regime. It is shown that the high parameters of an elementary separation event (dissociation yield and selectivity, quantum efficiency) for these molecules can be used to achieve efficient laser separation of the carbon isotopes /sup 12/C and /sup 13/C. An analysis is made of problems involved in organizing the chemical cycle when the process is scaled up. A description is given of an apparatus for scaled-up laser isotope separation, including a pulse-periodic CO/sub 2/ laser with a kilowatt average power, and a laser separation cell. Experiments carried out using this apparatus showed that the high parameters obtained in the single-pulse regime can also be achieved using this design and a yield rate comparable with that of traditional separation systems can be achieved for fairly low energy losses. These results make it possible to develop a commercial system for laser isotope separation using multiphoton dissociation of molecules.

• Research Organization: Institute of Spectroscopy, Academy of Sciences of the USSR, Troitsk
• OSTI ID: 6875306
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 12:4; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
070100* -- Physical Isotope Separation
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400303 -- Organic Chemistry-- Isotope Exchange & Isotope Separation-- (-1987)
BROMINATED ALIPHATIC HYDROCARBONS
CARBON ISOTOPES
CHLORINATED ALIPHATIC HYDROCARBONS
DISSOCIATION
EFFICIENCY
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
ISOTOPE SEPARATION
ISOTOPES
LASER ISOTOPE SEPARATION
MULTI-PHOTON PROCESSES
ORGANIC BROMINE COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PULSE TECHNIQUES
QUANTUM EFFICIENCY
SEPARATION PROCESSES