Abstract
13C isotope separation by multiphoton dissociation of CHClF2 was studied by a continuous-discharge CO2 laserQ-switched at 8 kHz. This laser can easily emit two or more wavelengths with good spatial and temporal overlap. The best irradiation results were obtained by the line pair 9P16 + 9P28. After optimizing also the pressures of CHClF2 and of buffer gases (He and Ar), the energy density and the gas speed, the process is now much less nonlinear than in previous experiments with a single wavelength. Differences to the TEA laser induced process were observed, and generally the pressure influence on yield and selectivity showed a variety of phenomena. They were interpreted in terms of collisional changes of spectra during the laser pulse.
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Gauthier, M., Cureton, C.G., Hackett, P.A., Willis, C.: Appl. Phys. B28, 43 (1982)
Outhouse, A., Lawrence, P., Gauthier, M., Hackett, P.A.: Appl. Phys. B36, 63 (1985)
Avatkov, O.N., Vecko, V.M., Dzneladze, D.I., Esadze, G.G., Kaminskij, A.V., Kudzijev, A.G., Kudzijev, T.A.: Chimia Vysokich Energij22, 167 (1988) (in Russian)
Baranov, V.Yu., Dyadkin, A.P., Kuz'menko, V.A.: Sov. J. Quantum Electr.18, 467 (1988)
Evseev, A.V., Laptev, V.B., Puretskii, A.A., Ryabov, E.A., Furzikov, N.P.: Sov. J. Quantum Electr.18, 385 (1988)
Evseev, A.V., Letokhov, V.S., Puretzky, A.A.: Appl. Phys. B36, 93 (1985)
Arai, S., Sugita, K., Ma, P., Ishikawa, Y., Kaetsu, H., Isomura, S.: Chem. Phys. Lett.151, 516 (1988); Appl. Phys. B48, 427 (1989)
Ma, P.H., Sugita, K., Arai, S.: Appl. Phys. B50, 385 (1990)
Fuss, W., Göthel, J., Kompa, K.L., Ivanenko, M., Schmid, W.E.: Proc. of Internat. Symp. on Isotope Separation and Chem. Exchange Uranium Enrichment, Tokyo 1990, Fujii-e, Y. (ed.) (in press)
D'Ambrosio, C., Fuss, W., Schmid, W.E., Trushin, S., Kompa, K.L.: Proceedings of the 7th Internat. Symp. on Gas Flow and Chem. Lasers, Vienna 1988, SPIE Vol. 1031, p. 48
D'Ambrosio, C., Fuss, W., Kompa, K.L., Schmid, W.E.: Appl. Phys. B47, 17 (1988); Spectrochim. Acta43A, 189 (1987)
D'Ambrosio, C., Fuss, W., Kompa, K.L., Schmid, W.E., Truŝin, S.: Infrared Phys.29, 479 (1989)
Fuss, W., Göthel, J., Kompa, K.L., Invanenko, M., Schmid, W.E.: Appl. Phys. B54 (1992) (in press)
Amrein, A., Luckhaus, D., Merkt, F., Quack, M.: Chem. Phys. Lett.152, 275 (1988)
Magill, J.V., Gough, K.M., Murphy, W.F.: Spectrochim. Acta42A, 705 (1986)
D'Ambrosio, C., Fuss, W., Kompa, K.L., Schmid, W.E.: J. Opt. Soc. Am. B5, 1540 (1988)
Lambert, J.D., Vibrational and rotational relaxation in gases, Oxford, 1977
Evseev, A.V., Puretskii, A.A., Tyakht, V.V.: Sov. Phys. JETP61, 34 (1985)
Weitz, E., Flynn, G.: Adv. Chem. Phys.47 (2), 185 (1981)
Del Bello, U., Churakov, V., Fuß, W., Kompa, K.L., Maurer, B., Schwab, C., Werner, L.: Appl. Phys. B42, 147 (1987)
Del Bello, U., Fuss, W., Kompa, K.L., Tablas, F.M.G.: J. Chem. Phys.90, 3055 (1989)
McLaughlin, J.G., Poliakoff, M., Turner, J.J.: J. Mol. Struct.82, 51 (1982)
Fuss, W., Hartmann, J., Schmid, W.E.: Appl. Phys.15, 297 (1978)
Fuss, W., Hartmann, J.: J. Chem. Phys.70, 5768 (1979)
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On leave from Inst. of Physics, Skorina Prosp. 70, Minsk, Republic of Byelorussia
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Fuß, W., Göthel, J., Ivanenko, M. et al. Isotope selective dissociation of CHClF2 by a one- and two-wavelengthQ-switched CO2 laser. Z Phys D - Atoms, Molecules and Clusters 24, 47–56 (1992). https://doi.org/10.1007/BF01436603
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DOI: https://doi.org/10.1007/BF01436603