Skip to main content
SpringerLink
Log in

Quantitative conversion spectroscopy of the ultrasoft isomeric transition of uranium-235 and the electronic structure of uranium oxides

  • Solids
  • Published:
Journal of Experimental and Theoretical Physics Aims and scope Submit manuscript

Abstract

Combined measurements of conversion electron spectra and the decay constant (76.5 eV, (1/2)+→(7/2)−) of the E3-isomeric transition of the uranium-235 nucleus have been performed with collection of the isomer atoms on an indium surface. The conversion spectra are interpreted as corresponding to a mixture of two different oxides A and B of uranium, one of which (A) is similar to UO2, and the other (B) consists of a uranium-oxygen cluster based on the linear uranyl group O-U-O. From a set of mixed experimental spectra conversion spectra have been found corresponding to the chemical states A and B of the isomer atoms, and the variation of the absolute intensities of the conversion lines has been quantitatively investigated for them by varying the chemical composition of the isomer atoms and the ratio between the intensities of various conversion lines of the B spectrum. Experimental ratios between the intensities of the conversion lines are compared with the expected ratios in accordance with the distribution of the 6p electron density in the uranyl group. It is concluded that the experimental data agree with the calculation and that abrupt violations of proportionality of the partial probabilities of conversion of the electron density near the nucleus are absent. In accordance with the hypothesis of proportionality of the partial probabilities of conversion, an experimental estimate is given of the degree of localization of the deep-lying uranium 6p 1/2 shell during formation of the chemical bond in the uranyl group: around 70% of the 6p 1/2 electron density remains in the quasi-atomic uranium shell and around 30% is transferred to hybrid molecular orbitals.

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. V. N. Gerasimov and V. M. Kulakov, Izv. Akad. Nauk SSSR, Ser. Fiz. 54, 1705 (1990).

    Google Scholar 

  2. J. W. Petersen, G. Weyer, E. Holzschuh, and W. Kundig, ISOLDE Collaboration, Phys. Lett. A 146, 226 (1990).

    ADS  Google Scholar 

  3. V. N. Gerasimov, D. V. Grebennikov, V. M. Kulakov, S. K. Lisin, and V. V. Kharitonov, Preprint IAÉ-5815/2 (1994).

  4. F. Azaro and I. Perlman, Phys. Rev. 107, 318 (1957).

    ADS  Google Scholar 

  5. J. R. Huizenga, C. L. Rao, and P. W. Engelkemeir, Phys. Rev. 107, 319 (1957).

    ADS  Google Scholar 

  6. A. D. Panov, in International Conference on Nuclear Physics (XLVIth Conference on Nuclear Spectroscopy and the Structure of the Atomic Nucleus), St. Petersburg, Russia (1996), p. 340.

  7. M. C. Michel, F. Azaro, and I. Perlman, Bull. Amer. Phys. Soc. Ser. II 2, 394 (1957).

    Google Scholar 

  8. R. G. Helmer and C. W. Reich, Physica C 49, 1845 (1994).

    Google Scholar 

  9. A. Bohr and B. R. Mottelson, Nuclear Structure, Vol. 2 (Benjamin, New York, 1975).

    Google Scholar 

  10. J. Almeida, T. von Egidy, P. H.M. van Assche, H. G. Börner, W. E. Davidson, K. Schreckenbach, and A. I. Nameson, Nucl. Phys. A 315, 71 (1979).

    ADS  Google Scholar 

  11. I.-L. Lamm, Nucl. Phys. A 125, 504 (1969).

    ADS  Google Scholar 

  12. F. A. Gareev, S. P. Ivanova, L. A. Malov, and V. G. Soloviev, Nucl. Phys. A 171, 134 (1971).

    ADS  Google Scholar 

  13. D. P. Grechukhin and A. A. Soldatov, Yad. Fiz. 23, 273 (1976) [Sov. J. Nucl. Phys. 23, 143 (1976)].

    Google Scholar 

  14. V. I. Zhudov, A. G. Zelenkov, V. M. Kulakov, V. I. Mostovoi, and B. V. Odinov, JETP Lett. 30, 516 (1979).

    ADS  Google Scholar 

  15. D. P. Grechukhin, V. I. Zhudov, A. G. Zelenkov, V. M. Kulakov, B. V. Odinov, A. A. Soldatov, and Yu. A. Teterin, JETP Lett. 31, 592 (1980).

    ADS  Google Scholar 

  16. D. P. Grechukhin and A. A. Soldatov, VANT, Ser. Jad. Konst., No. 2(56), 36 (1984).

  17. B. W. Veal, D. J. Lam, W. T. Carnall, and H. R. Hoekstra, Phys. Rev. B 12, 5651 (1975).

    Article  ADS  Google Scholar 

  18. D. P. Grechukhin and A. A. Soldatov, Yad. Fiz. 38, 1397 (1983) [Sov. J. Nucl. Phys. 38, 849 (1983)].

    Google Scholar 

  19. H. Mazaki and S. Shimizy, Phys. Rev. 148, 1161 (1966).

    Article  ADS  Google Scholar 

  20. M. Neve de Mevergnies, Phys. Lett. B 26, 615 (1968).

    ADS  Google Scholar 

  21. M. Neve de Mevergnies, Phys. Rev. Lett. 23, 422 (1969).

    ADS  Google Scholar 

  22. M. Neve de Mevergnies, Phys. Rev. Lett. 29, 1188 (1972).

    ADS  Google Scholar 

  23. M. Neve de Mevergnies and P. Del Marmol, Phys. Lett. B 49, 428 (1974).

    ADS  Google Scholar 

  24. V. I. Zhudov, V. K. Kulakov, and B. V. Odinov, in Abstracts of the XXIXth Conference on Nuclear Spectroscopy and the Structure of the Atomic Nucleus (Nauka, Leningrad, 1979), p. 563.

  25. V. I. Zhudov, V. M. Kulakov, B. V. Odinov, and A. D. Panov, VANT, Ser. Vad. Konst., No. 4(58), 3 (1984).

  26. V. Yu. Dobretsov, Zh. Éksp. Teor. Fiz. 102, 774 (1992) [Sov. Phys. JETP 75, 424 (1992)].

    Google Scholar 

  27. V. I. Zhudov and D. V. Grebennikov, VANT, Ser. Yad.-Fiz. Issled., No. 11(19), 100 (1990).

  28. A. D. Panov, Poverkhnost’ No. 10, 21 (1995).

  29. A. D. Panov, Preprint IAÉ-5901/2 (1995).

  30. M. A. Kelly and C. E. Tyler, Hewlett-Packard J. 24, 2 (1973).

    Google Scholar 

  31. A. D. Panov, Preprint IAÉ-5954/2 (1995).

  32. M. P. Seach and W. A. Dench, Surf. Interface Anal. 1, 2 (1979).

    Google Scholar 

  33. A. D. Panov, Preprint IAÉ-5960/2 (1996).

  34. A. D. Panov, Preprint IAÉ-5926/2 (1996).

  35. A. L. Gubskii, A. P. Kovtun, Yu. A. Teterin, and A. S. Baev, Preprint IAÉ-4053/12 (1984).

  36. V. I. Nefedov, Yu. A. Teterin, T. Raikh, and Kh. Niche, Dokl. Akad. Nauk 348, 634 (1996).

    Google Scholar 

  37. L. V. Volod’ko, A. I. Komyak, and D. S. Umreiko, Uranyl Compounds. Spectra and Structure, Vol. 1 [in Russian] (Belorussian State Univ. Press, Minsk, 1981).

    Google Scholar 

  38. V. A. Gubanov, A. Rosen, and D. E. Ellis, J. Inorg. Nucl. Chem. 41, 975 (1979).

    Article  Google Scholar 

  39. A. D. Panov, VANT, Ser. Obshch. Yad. Fiz., No. 4(40), 79 (1987).

  40. Yu. A. Teterin and A. S. Baev, X-Ray Photo-Electron Spectroscopy of Compounds of the Light Actinides: Review [in Russian] (State Committee on the Use of Atomic Energy of the USSR, Moscow, 1986).

    Google Scholar 

  41. C. Y. Yang, K. H. Jonson, and J. A. Horsley, J. Chem. Phys. 68, 1001 (1978).

    ADS  Google Scholar 

  42. J. H. Wood, M. Boring, and S. B. Woodruff, J. Chem. Phys. 74, 5225 (1981).

    ADS  Google Scholar 

  43. P. F. Walch and D. E. Ellis, J. Chem. Phys. 65, 2387 (1976).

    Article  ADS  Google Scholar 

  44. V. A. Glebov and V. S. Nefedov, Koord. Khim. 7, 1664 (1981).

    Google Scholar 

  45. V. A. Glebov and V. S. Nefedov, Koord. Khim. 7, 1673 (1981).

    Google Scholar 

  46. R. S. Mulliken, J. Chem. Phys. 23, 1833 (1955).

    Google Scholar 

  47. Yu. A. Teterin, V. A. Terekhov, and K. E. Ivanov, Dokl. Akad. Nauk 345, 356 (1995) [Phys. Dokl. 40, 195 (1995)].

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Russian Scientific Center “Kurchatov Institute,”, 123182, Moscow, Russia

    A. D. Panov

Authors
  1. A. D. Panov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Zh. Éksp. Teor. Fiz. 112, 574–595 (August 1997)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Panov, A.D. Quantitative conversion spectroscopy of the ultrasoft isomeric transition of uranium-235 and the electronic structure of uranium oxides. J. Exp. Theor. Phys. 85, 313–324 (1997). https://doi.org/10.1134/1.558280

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1134/1.558280

Keywords

Search

Navigation