Skip to main content
SpringerLink
Log in

Effect of flow pattern in a supersonic nozzle reactor on product branching ratio for UV photolysis of UF6/CH4 mixtures

  • Invited Paper
  • Published:
Applied Physics B Aims and scope Submit manuscript

Abstract

The product branching ratio was studied in relation to the radical scrambling mechanism of laser isotope separation of uranium. A mixture of UF6/CH4/Ar was irradiated either using a low-intensity cw-UV source (high-pressure Hg lamp, 250 nm ∼ 400 nm) or using high-intensity pulsed UV lasers (4th-harmonic YAG laser at 266 nm or KrF laser at 248 nm) in a supersonic nozzle reactor. While the latter gave a higher C2H6/CH3F ratio in the photoproduct than the former, the C2H6/CH3F branching ratio was found to disagree with the results reported in a static cell experiment. This anomaly in the results obtained using a supersonic nozzle reactor was well represented by a model proposed in this study which assumed no mixing before a shock wave zone and sufficient mixing after it, leading to complete suppression of radical recombination.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. Rabinowitz, A. Kaldor, A. Gnauck, R.L. Woodin, J.S. Gethner: Opt. Lett.,7, 212 (1982)

    Google Scholar 

  2. R.J. Jensen, O.P. Judd, J.A. Sullivan: Los Alamos Science,3, 2 (1982)

    Google Scholar 

  3. K. Takeuchi, H. Tashiro, S. Kato, K. Midorikawa, T. Oyama, S. Satooka, S. Namba: J. Nucl. Sci. Technol.,26, 301 (1989)

    Google Scholar 

  4. S. Kato, S. Satooka, T. Oyama, K. Takeuchi, K. Midorikawa, H. Tashiro, S. Namba: J. Nucl. Sci. Technol.,26, 256 (1989)

    Google Scholar 

  5. R. Foon, M. Kaufman: Prog. React. Kinet.,8, 81 (1975)

    Google Scholar 

  6. J.L. Lyman, G. Laguna, N.R. Greiner: J. Chem. Phys.,82, 183 (1985)

    Google Scholar 

  7. W.W. Rice, R.C. Oldenborg, F.B. Wampler, J.J. Tiee: Applied Optics,20, 2625 (1981)

    Google Scholar 

  8. J.L. Lyman, G. Laguna, N.R. Greiner: J. Chem. Phys.,82, 175 (1985)

    Google Scholar 

  9. D.L. Baulch, J. Duxbury: Combustion Flame37, 313 (1980)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. The Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, 351-01, Wako-shi, Saitama, Japan

    Y. Kuga, S. Satooka & K. Takeuchi

Authors
  1. Y. Kuga
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. Satooka
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. K. Takeuchi
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kuga, Y., Satooka, S. & Takeuchi, K. Effect of flow pattern in a supersonic nozzle reactor on product branching ratio for UV photolysis of UF6/CH4 mixtures. Appl. Phys. B 63, 293–298 (1996). https://doi.org/10.1007/BF01833799

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01833799

PACS

Search

Navigation