Skip to main content
SpringerLink
Log in

Delayed Fission of Light Am Isotopes

  • Chapter
Exotic Nuclear Spectroscopy

  • 113 Accesses

Abstract

Fission characteristics of the delayed-fission decay mode in light Am nuclei have been investigated. Total kinetic energy and mass-yield distributions were measured for 232Am and for 234Am, and delayed-fission probabilities of 6.9 х 10-4 and 6.6 х 10-5, respectively, were determined. The total kinetic energy and the asymmetric mass-yield distributions are typical of fission of mid-range actinides. No discernible influence of the anomalous triple-peaked mass division characteristic of the Th-Ra region was detected. Measurements of the time correlation between the EC х rays and the subsequent fission confirm that the observed fissions arise from the EC delayed-fission mechanism.

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

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 99.00
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. E. M. Burbidge, G. R. Burbidge, W. A. Fowler, and F. Hoyle, Rev. Mod. Phys. 29, 547 (1957).

    Article  Google Scholar 

  2. C. O. Wene and S. A. E. Johansson, Phys. Scripta 10A, 156 (1974).

    Article  CAS  Google Scholar 

  3. C. O. Wene, Astron. and Astrophys. 44, 233 (1975).

    CAS  Google Scholar 

  4. H. V. Klapdor, T. Oda, J. Metzinger, W. Hillebrandt, and F. K. Thielman, Z. Physik A299, 213 (1981).

    Google Scholar 

  5. B. S. Meyer, W. M. Howard, G. J. Matthews, K. Takahashi, P. Möller, and G. Leander, Phys. Rev. C 39, 1876 (1989).

    Article  CAS  Google Scholar 

  6. Yu. A. Lazarev, Yu. Ts. Oganessian, and V. I. Kuznetsov, Joint Institute for Nuclear Research, Dubna, Report No. JINR-E7–80–719 (1980).

    Google Scholar 

  7. Yu. P. Gangrskii, M. B. Miller, L. V. Mikhailov, and I. F. Kharisov, Yad. Fiz. 31, 306 (1980) [Sov. J. Nucl. Phys. 31, 162 (1980)].

    Google Scholar 

  8. H. L. Hall, K. E. Gregorich, R. A. Henderson, C. M. Gannett, R. B. Chadwick, J. D. Leyba, K. R. Czerwinski, B. Kadkhodayan, S. A. Kreek, D. M. Lee, M. J. Nurmia, D. C. Hoffman, C. E. A. Palmer, and P. A. Baisden, Phys. Rev. C. 41, 618 (1990).

    Article  CAS  Google Scholar 

  9. H. V. Klapdor, C. O. Wene, I. N. Isosimov, and Yu. W. Naumow, Z. Phy. A292, 249 (1979).

    Google Scholar 

  10. H. L. Hall, K. E. Gregorich, R. A. Henderson, D. M. Lee, D. C. Hoffman, M. E. Bunker, M. M. Fowler, P. Lysaght, J. W. Statuer, and J. B. Wilhelmy, Phys. Rev. C 39, 1866 (1989).

    Article  CAS  Google Scholar 

  11. V. I. Kuznetsov, N. K. Skobelev, and G. N. Flerov, Yad. Fiz. 4, 279 (1966) [Sov. J. Nucl. Phys. 4, 202 (1967)].

    Google Scholar 

  12. V. I. Kuznetsov, N. K. Skobelev, and G. N. Flerov, Yad. Fiz. 5, 271 (1967) [Sov. J. Nucl. Phys. 5, 191 (1967)].

    Google Scholar 

  13. E. E. Berlovich and Yu. P. Novikov, Dole Akad. Nauk SSSR 185, 1025 (1969) [Sov. Physics Doklady 14, 349 (1969)].

    Google Scholar 

  14. N. K. Skobelev, Yad. Fiz. 15,444 (1972) [Sov. J. Nuct Phys. 15, 249 (1972)].

    Google Scholar 

  15. D. Habs, H. Klewe-Nebenius, V. Metag, B. Neumann, and H. J. Specht, Z. Phy. A285, 53 (1978).

    Google Scholar 

  16. R. Hingman, W. Kuehn, V. Metag, R. Novotny, A. Ruckelshausen, H. Stroeher, F. Hessberger, S. Hofmann, G. Münzenberg, and W. Reisdorf, GSI, Darmstadt, Report No. GSI 85–1, 88 (1985).

    Google Scholar 

  17. Yu. A. Iazarev, Yu. Ts. Oganessian, I. V. Shirokovsky, S. P. Tretyakova, V. K. Utyonkov, and G. V. Buklanov, Europhys. Lett. 4, 893 (1987).

    Article  Google Scholar 

  18. L. P. Somerville, A. Ghiorso, M. J. Nurmia, and G. T. Seaborg, LBL Nuclear Science Division Annual Report, 1976–1977, Report No. LBL-6575, 39 (1977).

    Google Scholar 

  19. V. I. Kuznetsov, Yad. Fiz. 30, 321 (1979) [Sov. J. Nuci. Phys. 30, 166 (1979)].

    Google Scholar 

  20. R. W. Hoff, in Weak and Electromagnetic Interactions in Nuclei, Ed. by H. V. Klapdor, (Springer-Verlag, Heidelburg, 1986), p. 207.

    Chapter  Google Scholar 

  21. R. W. Hoff, Inst. Phys. Conf. Ser. No. 88/J.Phys. G: Nuci. Phys. 14,Suppl, S343 (1986).

    Google Scholar 

  22. Yu. P. Gangrskii, G. M. Marinescu, M. B. Miller, V. N. Samoyusk, and I. F. Kharisov, Yad. Fiz. 27, 894 (1978) [Sov. J. Nuci. Phys. 27, 475 (1978)].

    Google Scholar 

  23. A. Baas-May, J. V. Kratz, and N. Trautmann, Z. Physik A322, 457 (1985).

    Google Scholar 

  24. P. Willer, W. D. Myers, W. J. Swiatecki, and J. Treiner, At. Data Nucl. Data Tables 39, 225 (1988).

    Article  Google Scholar 

  25. H. L. Hall, M. J. Nurmia, and D. C. Hoffman, Nucl. Inst. Meth. A276, 649 (1989).

    CAS  Google Scholar 

  26. D. C. Hoffman and M. M. Hoffman, Ann. Rev. Nuci. Sei. 24, 151 (1974).

    Article  CAS  Google Scholar 

  27. H. J. Specht, Rev. Mod. Phys. 46, 773 (1974).

    Article  CAS  Google Scholar 

  28. H. J. Specht, Phys. Scripta 10A, 21 (1974).

    Article  CAS  Google Scholar 

  29. R. Vandenbosch and J. R. Huizenga, Nuclear Fission, (Academic Press, New York, 1973).

    Google Scholar 

  30. E. Konecny, H. J. Specht, and J. Weber, Phys. Leu. 45B, 329 (1973).

    Google Scholar 

  31. J. Blons, C. Mazur, D. Paya, M. Ribrag, and H. Weigmann, Nuci. Phys. A414, 1 (1984).

    Article  CAS  Google Scholar 

  32. M. G. Itkis, V. N. Okolovich, and A. Ya. Rusanov, Fiz. Elem. Chastits At. Yadra 19, 701 (1988) [Sov. J. Part. Nuci. 19, 301 (1988)].

    Google Scholar 

  33. B. S. Bhandari and A. S. Al-Kharam, Phys. Rev. C 39, 917 (1989).

    Article  CAS  Google Scholar 

  34. D. C. Hoffman and L. P. Somerville, Charged Particle Emission from Nuclei, Vol. III, Ed. by D. N. Poenaru and M. Ivascu, (CRC Press, Boca Raton, FL, 1989), p. 1.

    Google Scholar 

  35. Y. A. Ellis-Akovali, Nuci. Data Sheets 40, 523 (1983).

    Article  CAS  Google Scholar 

  36. H. W. Schmitt, W. E. Kiker, and C. W. Williams, Phys. Rev. 137, B837 (1965).

    Article  Google Scholar 

  37. E. Weissenberger, P. Geltenbort, A. Oed, F. Gonnenwein, and H. Faust, Nuci. Inst. Meth. A248, 506 (1986).

    Article  Google Scholar 

  38. L. C. Northcliffe and R. F. Schilling, Nuci. Data Tables A7, 233 (1970).

    Article  Google Scholar 

  39. R. Brandt, S. G. Thompson, R. C. Gatti, and L. Phillips, Phys. Rev. 131, 2617 (1963).

    Article  CAS  Google Scholar 

  40. V. Viola, Nuci. Data, Sect.B 1, 391 (1966).

    Article  CAS  Google Scholar 

  41. J. P. Unik, J. E. Gindler, L. E. Glendenin, K. F. Flynn, A. Gorski, and R. K. Sjoblom, in Proceedings of the 3rd LEA Symposium on the Physics and Chemistry of Fission, 1973, Vol. 2 (International Atomic Energy Agency, Vienna, 1974), p. 19.

    Google Scholar 

  42. J. T. Routti and S. G. Prussin, Nuci. Inst. Meth. 72, 125 (1969).

    Article  CAS  Google Scholar 

  43. J. B. Cumming, NAS-NS 3107, 25 (1963).

    Google Scholar 

  44. C. M. Lederer and V. M. Shirley, Table of Isotopes, 7th Ed. (John Wiley & Sons, New York, 1978).

    Google Scholar 

  45. J. H. Scofield, At. Data Nucl. Data Tables 14 121 (1974)

    Google Scholar 

  46. D. N. Poenaru, M. S. Ivascu, and D. Mazilu, Charged Particle Emission from Nuclei,Vol. III, Ed. by D. N. Poenaru and M. Ivascu, (CRC Press, Boca Raton, FL, 1989), p. 41.

    Google Scholar 

  47. H. L. Hall, K. E. Gregorich, R. A. Henderson, C. M. Gannett, R. B. Chadwick, J. D. Leyba, K. R. Czerwinski, B. Kadkhodayan, S. A. Kreek, D. M. Lee, M. J. Nurmia, and D. C. Hoffman, Phys. Rev. Lett. 63, 2548 (1989).

    Article  CAS  Google Scholar 

  48. R. M. Diamond, Nuclei Off the Line of Stability, Ed. by R. A. Meyer, and D. S. Brenner (ACS Symposium Series, Washington, DC, 1986), p. 341.

    Chapter  Google Scholar 

  49. “GAMMASPHERE - A Proposal for a National Gamma-Ray Facility,” Ed. by M.-A. Delaplanque and R. M. Diamond, LBL Publication No. PUB-5202 (1988).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, University of California, Berkeley, CA, 94720, USA

    H. L. Hall & D. C. Hoffman

  2. Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, CA, 94720, USA

    H. L. Hall & D. C. Hoffman

Authors
  1. H. L. Hall
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. D. C. Hoffman
    View author publications

    You can also search for this author in PubMed Google Scholar

Editor information

Editors and Affiliations

  1. Michigan State University, East Lansing, Michigan, USA

    William C. McHarris

Rights and permissions

Reprints and permissions

Copyright information

© 1990 Springer Science+Business Media New York

About this chapter

Cite this chapter

Hall, H.L., Hoffman, D.C. (1990). Delayed Fission of Light Am Isotopes. In: McHarris, W.C. (eds) Exotic Nuclear Spectroscopy. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3684-0_37

Download citation

  • DOI: https://doi.org/10.1007/978-1-4615-3684-0_37

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-6637-9

  • Online ISBN: 978-1-4615-3684-0

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics

Search

Navigation