Skip to main content
SpringerLink
Log in

Determination of fission barrier heights from β-delayed fission

  • Published:
Zeitschrift für Physik A Atoms and Nuclei

Abstract

Beta delayed fission (βDF) gives a possibility to investigate the fission barrier for nuclei far off beta stability. However, before any information on the fission barrier can be extracted, the effect of low-lying structures in the beta-strength function (S β) on theβDF branching ratio has to be considered. This is in general not done. In this paper the lowlying structures that occur inS β are discussed and microscopic calculations for the Gamow-Teller strength function are presented for232Th (β −-decay) and232Pu,240Cm,244,248Cf and248Fm (β +-decay). Using the calculated strength functionsβ +DF branching ratios are calculated and compared with the experimental ones. The sensitivity of the results to different shapes ofS β is investigated. It is concluded that, when the expected structures inS β are considered, there are at present no indications fromβ + DF measurements that the errors in the fission barrier calculations are larger than the uncertainty given for those calculations. The difference in magnitude between theβ − DF and theβ +DF branching ratios is also explained by the occurrence of low-lying structures inS β.

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. Kusnetsov, V.I., Skobelev, N.K., Flerov, G.N.: Sov. J. Nucl. Phys.4, 202 (1967); Sov. J. Nucl. Phys.5, 191 (1967)

    Google Scholar 

  2. Eccles, S.F.: Proc. Symp. on Engineering with Nuclear Explosives, Las Vegas, Nevada, (1970), Vol. 2, 1269

  3. Dorn, D.W., Hoff, R.W.: Phys. Rev. Lett.14, 440 (1965)

    Google Scholar 

  4. Ingley, J.S.: Nucl. Phys. A124, 130 (1969) (contains all data available up to 1969)

    Google Scholar 

  5. Wene, C.-O., Johansson, S.A.E.: Phys. Scripta10A, 156 (1974)

    Google Scholar 

  6. Wene, C.-O., Johansson, S.A.E.: CERN-Report 76-13, p. 584 (1976)

  7. Habs, D., Klewe-Nebenius, H., Metag, V., Neumann, B., Specht, H.J.: Z. Physik A285, 53 (1978)

    Google Scholar 

  8. Gangsky, Yu.P.: preprint JINR P7-10797 (1977)

  9. Gangrsky, Yu.P.: Isv. Akad. Nauk SSSR, in press

  10. Gangrsky, Yu.P.: priv. communication

  11. Below, A.G., Gangrsky, Yu.P., Kucher, A.M., Marinescu, G.M., Miller, M.B., Kharisov, I.F.: preprint JINR P15-9795 (1976)

  12. Batist, L.H., Berlovich, E., Gawrilow, W.W., Novikov, Yu.N., Orlov, C.Yu., Tichonow, W.I.: preprint No 363 (1977), Institute of Nucl. Physics, Leningrad

    Google Scholar 

  13. Klapdor, H.V., Wene, C.-O.: report MPI-H v25 (1978) MaxPlanck-Institut für Kernphysik, Heidelberg, and in press in Bulletin of the Academy of Sciences of the USSR (1979)

    Google Scholar 

  14. Klapdor, H.V., Wene, C.-O., Isosimov, I.N., Naumow, Yu.W.: Phys. Lett78 B, 20 (1978)

    Google Scholar 

  15. Duke, C.L., Hansen, P.G., Nielsen, O.B., Rudstam, G.: Nucl. Phys. A151, 609 (1970)

    Google Scholar 

  16. Hardy, J.C., Jonson, B., Hansen, P.G.: Nucl. Phys. A305, 15 (1978)

    Google Scholar 

  17. Shalev, S., Rudstam, G.: Nucl. Phys. A230, 153 (1974); A235, 397 (1974); A275, 76 (1977)

    Google Scholar 

  18. Takahashi, K.: Progr. Theor. Phys.47, 1500 (1972)

    Google Scholar 

  19. Klapdor, H.V.: Phys. Lett.65 B, 34 (1976) and CERN-Report 76-13 (1976), p. 311

    Google Scholar 

  20. Klapdor, H.V., Wene, C.-O.: Astrophys. J.230, L113 (1979)

    Google Scholar 

  21. Kratz, K.-L., Rudolph, W., Ohm, H., Franz, H., Herrmann, G., Ristori, C., Crancon, J., Asghar, M., Crawford, G.I., Nuh, F.M., Prussin, S.G.: Phys. Lett.65 B, 231 (1976)

    Google Scholar 

  22. Kratz, K.-L., Rudolph, W., Ohm, H., Franz, H., Zendel, M., Herrmann, G., Prussin, S.G., Nuh, F.M., Shibab-Eldin, A.A., Slaughter, D.R., Halversson, W., Klapdor, H.V.: Nucl. Phys. A317, 335 (1979)

    Google Scholar 

  23. Klapdor, H.V.: Phys. Lett.35 B, 405 (1971)

    Google Scholar 

  24. Schrader, M., Klapdor, H.V., Bergdolt, G., Bergdolt, A.M.: Phys. Lett.60 B, 39 (1975)

    Google Scholar 

  25. Naumow, Yu.W., Kraft, O.E.: Sov. J. Part. Nucl.,6, 361 (1976)

    Google Scholar 

  26. Doering, R.R., Galonsky, A., Patterson, D.M., Bertsch, G.F.: Phys. Rev. Lett.35, 1691 (1975)

    Google Scholar 

  27. Bohr, A., Mottelson, B.: Nucl. Structure, vol. I and II, New York: Benjamin, W.A. (1969), (1975)

    Google Scholar 

  28. Paul, P. In: Int. Conf. on Photonuclear Reactions and Applications, U.S. Atomic Energy Commission Office of Information Services, Oak Ridge, Tenn, (1973), vol. I., p. 407

    Google Scholar 

  29. Ivanova, S.P., Komow, A.L., Malow, L.A., Soloview, W.G.: Sov. J. Part. Nucl., Vol 7: 2, (1976)

    Google Scholar 

  30. Naumow, Yu.W.: Isv. Akad. Nauk SSSR (ser. fiz)39, 1656 (1975)

    Google Scholar 

  31. Klapdor, H.V., Schrader, M., Bergdolt, G., Bergdolt, A.M., Naumow, Yu.W.: Isv. Akad. Nauk SSSR (ser. fiz.)42, 64 (1978)

    Google Scholar 

  32. Bykow, A.A., Naumow, Yu.W.: Isv. Akad. Nauk SSSR (ser. fiz.)42, 1911 (1978)

    Google Scholar 

  33. Back, B.B., Hansen, O., Britt, H.V., Garrett, J.D.: Phys. Rev. C9, 1924 (1974)

    Google Scholar 

  34. Back, B.B., Britt, H.C., Hansen, O., Leroux, B., Garrett, J.D.: Phys. Rev. C10, 1948 (1974)

    Google Scholar 

  35. Britt, H.C., Bolsterli, M., Nix, J.R., Norton, J.L.: Phys. Rev. C7, 801 (1973)

    Google Scholar 

  36. Winterberg, F.: Nature241, 449 (1973)

    Google Scholar 

  37. Lynn, J.E. In: Nuclear Structure, Dubna Symp. (IAEA, Vienna 1968) p. 463

    Google Scholar 

  38. Möller, P., Nix, J.R. In: Proc. Third IAEA Symp. on Physics and Chemistry of Fission, Rochester, N.Y. 1973 (IAEA, Vienna, 1974) Vol I., p. 103

    Google Scholar 

  39. Glässel, P., Rösler, H., Specht, H.J.: Nucl. Phys.256, 220 (1976)

    Google Scholar 

  40. Wene, C.-O.: Astron. Astrophys.44, 233 (1975)

    Google Scholar 

  41. Atomic and Nuclear Data Tables,17, No. 5–6 (1976)

Download references

Author information

Authors and Affiliations

  1. Max-Planck-Institut für Kernphysik, Heidelberg, Germany

    H. V. Klapdor

  2. Department of Nuclear Physics, Lund Institute of Technology, Lund, Sweden

    C. -O. Wene

  3. Institute of Physics, University of Leningrad, USSR

    I. N. Isosimov & Yu. W. Naumow

Authors
  1. H. V. Klapdor
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. C. -O. Wene
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. I. N. Isosimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yu. W. Naumow
    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

Klapdor, H.V., Wene, C.O., Isosimov, I.N. et al. Determination of fission barrier heights from β-delayed fission. Z Physik A 292, 249–255 (1979). https://doi.org/10.1007/BF01547469

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01547469

Keywords

Search

Navigation