Skip to main content
SpringerLink
Log in

Uranium symmetric/asymmetric neutron-induced fission up to 200 MeV

  • Published:
The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

Abstract.

The symmetric SL-mode and asymmetric lumped (S1 + S2)-mode fission cross-sections of 235U(n,F) and 233U(n,F) reactions are calculated up to \(E_{\rm {n}} = 200\) MeV within a statistical model. For each U nuclide, emerging in \((\rm {n},x\rm {nf})\) reactions a separate triaxial outer fission barrier is assumed for the SL-mode. To reproduce the measured branching ratio of symmetric and asymmetric fission events for the 238U(n,F) reaction, more fissions coming from neutron-deficient nuclei were assumed. The damping of the triaxial collective modes contribution to the level density at the SL-mode outer saddle was essential for the branching ratio description. These assumptions allow to reproduce observed fission cross-sections of 235U(n,F) and 233U(n,F) reactions. The calculated branching ratio sensitivity to the target nuclide fissility is investigated.

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.M. Strutinsky, Nucl. Phys. A 95, 420 (1967).

    Article  Google Scholar 

  2. V.M. Maslov, Nucl. Phys. A 717, 3 (2003).

    Article  Google Scholar 

  3. U. Brosa, S. Grossmann, A. Müller, Phys. Rev. 197, 167 (1990).

    Article  Google Scholar 

  4. P. Möller, D.G. Madland, A.J. Sierk et al. , Nature 409, 785 (2001).

    Article  Google Scholar 

  5. F.-J. Hambsch, private communication (2001).

  6. F. Vives, F.-J. Hambsch, H. Bax, S. Oberstedt, Nucl. Phys. A 662, 63 (2000).

    Article  Google Scholar 

  7. V.M. Maslov, F.-J. Hambsch, Nucl. Phys. A 705, 352 (2002).

    Article  Google Scholar 

  8. E. Konecny, H.J. Specht, J. Weber, Phys. Lett. B 45, 329 (1973).

    Article  Google Scholar 

  9. J. Weber, H.C. Britt, A. Gavron et al. , Phys. Rev. 13, 2413 (1976).

    Article  Google Scholar 

  10. S. Oberstedt, F.-J. Hambsch, F. Vives, Nucl. Phys. A 644, 289 (1998).

    Article  Google Scholar 

  11. F.-J. Hambsch, F. Vives, P. Ziegler et al. , Nucl. Phys. A 679, 3 (2000).

    Article  Google Scholar 

  12. C.M. Zoller, A. Gavron, J.P. Lestone et al. , IKDA 95/25, Darmstadt.

  13. P. Lisowski, A.D. Carlson, O.A. Wasson et al. , Proceedings of the Specialists’ Meeting on Neutron Cross Section Standards for the Energy Region above 20 MeV, Uppsala, Sweden, 21-23 May, 1991 (OECD, Paris, 1991) p. 177.

  14. O.A. Shcherbakov, A. Donets, A. Evdokimov, A. Fomichev, T. Fukahori, A. Hasegawa, A. Laptev, V. Maslov, G. Petrov, S. Soloviev, Yu. Tuboltsev, A. Vorobyev, Proceedings of the International Conference on Nuclear Data for Science and Technology, October 7-12, 2001, Tsukuba, Japan (Atomic Energy Society, Tokyo, Japan, 2001) p. 230.

  15. V.M. Maslov, Yu.V. Porodzinskij, A. Hasegawa, M. Baba, Proceedings of the International Conference on Nuclear Data for Science and Technology, October 7-12, 2001, Tsukuba, Japan (Atomic Energy Society, Tokyo, Japan, 2001) p. 80.

  16. M. Uhl, B. Strohmaier, IRK-76/01, IRK, Vienna (1976).

  17. C.K. Cline, Nucl. Phys. A 195, 353 (1972).

    Article  Google Scholar 

  18. E. Gadioli, E. Gadioli Erba, P.G. Sona, Nucl. Phys. A 217, 589 (1973).

    Article  Google Scholar 

  19. A.R. Junghans, M. de Jong, H.-G. Clerc et al. , Nucl. Phys. A 629, 635 (1998).

    Article  Google Scholar 

  20. V.M. Maslov, Yu.V. Porodzinskij, M. Baba, A. Hasegawa et al. , Eur. Phys. J. A 18, 93 (2003).

    Article  Google Scholar 

  21. W.P. Abfalterer et al. , Phys. Rev. C 63, 044608 (2001).

    Article  Google Scholar 

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

  23. A.V. Ignatjuk, K. Istekov, G.N. Smirenkin, Sov. J. Nucl. Phys. 29, 450 (1979).

    Google Scholar 

  24. W.M. Howard, P. Möller, At. Data Nucl. Data Tables 25, 219 (1980).

    Google Scholar 

  25. G. Hansen, A.S. Jensen, Nucl. Phys. A 406, 236 (1983).

    Article  Google Scholar 

  26. V.M. Maslov, Yu.V. Porodzinskij, JAERI-Research 98-038, Japan, 1998.

  27. W.O. Myers, W.J. Swiatecki, Ark. Fys. 36, 343 (1967).

    Google Scholar 

  28. S. Bjørnholm, J.E. Lynn, Rev. Mod. Phys. 52, 725 (1980).

    Article  Google Scholar 

  29. K.-H. Schmidt et al. , Nucl. Phys. A 665, 221 (2000).

    Article  Google Scholar 

  30. V.M. Maslov, in Handbook for Calculations of Nuclear Reaction Data: Reference input parameter library, IAEA-TECDOC-1034 (IAEA, Vienna, 1998) p. 81.

  31. V.M. Maslov, INDC(BLR)-013, IAEA, Vienna, 1998.

  32. W.P. Poenitz, Nucl. Sci. Eng. 64, 89 (1977).

    Google Scholar 

  33. J.B. Czirr, J.B. Sidhu, Nucl. Sci. Eng. 57, 18 (1975).

    Google Scholar 

  34. B. Leugers, S. Cierjacks, P. Brotz et al. , in Proceedings of the NEANDC/NEACRP Specialists Meeting on Fast Neutron Fission Cross Sections 233U, 235U, 238U and 239Pu (USA, Argonne, 1976), ANL-79-90 (Argonne National Laboratory, 1976) p. 183.

  35. G.W. Carlson, J.W. Behrens, Nucl. Sci. Eng. 66, 205 (1978).

    Google Scholar 

  36. V.N. Dushin, A.V. Fomichev, S.S. Kovalenko et al. , At. Energ. 55, (4), 218 (1983).

  37. V.M. Adamov, B.M. Aleksandrov, I.D. Alkhazov et al. , Yad. Konstanty 24, 8 (1977).

    Google Scholar 

  38. K.R. Zasadny, H.M. Agrawal, M. Mahdavi, G.F. Knoll, Trans. Am. Nucl. Soc. 47, 425 (1984).

    Google Scholar 

  39. V.A. Kalinin, S.S. Kovalenko, V.N. Kuz’min et al. , Vopr. At. Nauki Tekh. (Ser. Yad. Konstanty) 4, 3 (1987).

    Google Scholar 

  40. W. Younes, J.A. Becker, L.A. Bernstein et al. , Phys. Rev. C 64, 044607 (2001).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Joint Institute for Nuclear and Energy Research, “Sosny”, 220109, Minsk, Belarus

    V. M. Maslov

Authors
  1. V. M. Maslov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. M. Maslov.

Additional information

Communicated by A. Molinari

Received: 26 August 2003, Revised: 31 January 2004, Published online: 17 August 2004

PACS:

24.10.Pa Thermal and statistical models - 25.85.Ec Neutron-induced fission - 24.75. + i General properties of fission

V.M. Maslov: maslov@bas-net.by

Rights and permissions

Reprints and permissions

About this article

Cite this article

Maslov, V.M. Uranium symmetric/asymmetric neutron-induced fission up to 200 MeV. Eur. Phys. J. A 21, 281–286 (2004). https://doi.org/10.1140/epja/i2003-10210-4

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1140/epja/i2003-10210-4

Keywords

Search

Navigation