Abstract
Large-scale silicon isotope separation based on the IRMPD of natural Si2F6 has been carried out using a commercially available high power CO2 TEA laser and a flow reaction system. The decomposition product SiF4 containing 19–33% of 30Si was obtained at a production rate of 1.5×10−2−2.6×10−2 mol·h−1, depending on experimental parameters such as laser wavelength, laser fluence, pressure, and flow rate. SiF4 containing 12% of 29Si was obtained under slightly different conditions, i.e., at a shorter wavelength than that for 30Si. When 39% of Si2F6 was decomposed at a slow flow rate, residual Si2F6 was found to have 99.7% of 28Si. The production rate was 4.2×10−2 mol·h−1.
Similar content being viewed by others
References
R.V. Ambartzumian, V.S. Letokhov, E.A. Ryabov, N.V. Chekalin: Sov. Phy. JETP Lett. 20, 273 (1974)
V.S. Letokhov: Nonlinear Laser Chemistry (Springer, Berlin, Heidelberg 1983)
M. Gauthier, C.G. Cureton, P.A. Hackett, C. Willis: Appl. Phys. B 28, 43 (1982)
M. Gauthier, A. Outhouse, Y. Ishikawa, K.O. Kutschke, P.A. Hackett: Appl. Phys. B 35, 173 (1984)
A. Outhouse, P. Lawrence, M. Gauthier, P.A. Hackett: Appl. Phys. B 36, 63 (1985)
S. Arai, K. Sugita, P.H. Ma, Y. Ishikawa, H. Kaetsu, S. Isomura: Chem. Phys. Lett. 151, 516 (1988)
S. Arai, K. Sugita, P.H. Ma, Y. Ishikawa, H. Kaetsu, S. Isomura: Appl. Phys. B 48, 427 (1989)
K. Sugita, P. Ma, Y. Ishikawa, S. Arai: Appl. Phys. B 52, 266 (1991)
G.I. Abdushelishvili, O.N. Avatkov, V.N. Bagratashvili, V.Yu. Baranov, A.B. Bakhtadze, E.P. Velikhov, V.M. Vetsko, I.G. Gverdtsiteli, V.S. Dolzhhikov, G.G. Esadze, S.A. Kazakov, Yu.R. Kolomiiskii, V.S. Letokhov, S.V. Pigulskii, V.D. Pismennyi, E.A. Ryabov, G.I. Tkeshelashvili: Sov. J. Quantum Electron. 12, 459 (1982); V.Yu. Baranov: IEEE J. QE-19, 1577 (1983)
W. Fuss, W.E. Schmid: Ber. Bunsenges. Phys. Chem. 83, 1148 (1979); C. D'Ambrosio, W. Fuss, K.L. Kompa, W.E. Schmid, S. Trusin: Infrared Phys. 29, 479 (1989)
M. Kamioka, S. Arai, Y. Ishikawa, S. Isomura, N. Takamiya: Chem. Phys. Lett. 119, 357 (1985)
M. Kamioka, Y. Ishikawa, H. Kaetsu, S. Isomura, S. Arai: J. Phys. Chem. 90, 5727 (1986)
S. Arai, M. Kawai, H. Morimoto, K. Tanaka, H. Seyama, M. Soma: Appl. Phys. B 47, 243 (1988)
F. Hofler, S. Waldhor, E. Hengge: Spectrochim. Acta 28 A, 29 (1972)
V.A. Sahini, Rodica Grigonovici, A. Butucelea: Revue Roumaine de Chimie 23, 643 (1978)
J. Heicklen, V. Knight: Spectrochimica Acta 20, 295 (1964)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Arai, S., Kaetsu, H. & Isomura, S. Practical separation of silicon isotopes by IRMPD of Si2F6 . Appl. Phys. B 53, 199–202 (1991). https://doi.org/10.1007/BF00357136
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00357136