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Isotope Enrichment by Laser Stimulation Causing Condensation Repression

[+] Author Affiliations
Jay F. Kunze, K. T. S. Islam, Ernest Nieschmidt

Idaho State University, Pocatello, ID

Paper No. ICONE10-22606, pp. 157-163; 7 pages
doi:10.1115/ICONE10-22606
From:
  • 10th International Conference on Nuclear Engineering
  • 10th International Conference on Nuclear Engineering, Volume 4
  • Arlington, Virginia, USA, April 14–18, 2002
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-3598-7 | eISBN: 0-7918-3589-8
  • Copyright © 2002 by ASME

abstract

Sulfur isotopes in SF6 molecules have been enriched, in a laboratory experiment, using tuned laser radiation to excite a particular sulfur isotopic molecule and inhibit its condensation on the cooled annulus inside of the chamber. The evidence of enrichment was determined by examining the residual gas with a Fourier Transform lnfra Red Spectrometer. The enrichment was observed during a transient experiment in which the temperature of the condensing surface was gradually decreased, and gas pressure of the SF6 molecules was in the range of 8 Torr (0.01 atmospheres). These results show that excitation to a single excited level can create differential rates of condensation so as to achieve an enrichment factor of approximately 2.0 in a single stage.

Copyright © 2002 by ASME

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