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CO2-laser isotope separation of tritium with pentafluoroethane-T (C2TF5)

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Abstract

Isotope separation of tritium by CO2 laser-induced multiphoton dissociation (MPD) of C2TF5 is reported for the first time. The MPD spectrum obtained for C2TF5 comprised a broad peak at about 940 cm−1 where C2HF5 was nearly transparent. The unimolecular dissociation of C2TF5 was induced with much lower laser fluence than that for CTF3, another working molecule we proposed for laser isotope separation of tritium. The mechanisms and kinetics of the dissociation of C2TF5 and C2HF5 were investigated under various experimental conditions: laser frequency, pulse energy, pulse duration, tritium concentration, sample pressure, buffer gas pressure and irradiation geometry. Single-step separation factors exceeding 500 were achieved with the most efficientP(20) line in 00o–10o0 transition at 944.2 cm−1.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, The University of Tokyo, 113, Hongo, Tokyo, Japan

    Y. Makide, S. Kato & T. Tominaga

  2. The Institute of Physical and Chemical Research, 351, Wako, Saitama, Japan

    K. Takeuchi

Authors
  1. Y. Makide
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  2. S. Kato
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  3. T. Tominaga
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  4. K. Takeuchi
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Makide, Y., Kato, S., Tominaga, T. et al. CO2-laser isotope separation of tritium with pentafluoroethane-T (C2TF5). Appl. Phys. B 28, 341–348 (1982). https://doi.org/10.1007/BF00686364

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  • DOI: https://doi.org/10.1007/BF00686364

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