Zeitschrift für Physik A Atoms and Nuclei

, Volume 314, Issue 2, pp 135–142 | Cite as

The level scheme of91Tc and theβ decay of91Ru(9/2+)

  • P. Komninos
  • E. Nolte
  • P. Blasi


The level scheme of91Tc has been studied by means of in-beamγ-ray spectroscopy in the irradiations of58Ni and54Fe targets by40Ca beams from the Munich MP tandem and the heavy ion post accelerator. A large number of positive as well as of negative parity yrast-levels with excitation energies up to 8 MeV has been established. The level scheme of91Tc has been compared with shell model claculations and a good agreement for all identified levels has been found.

In parallel investigations of the residual activities of the reaction40Ca→54Fe, theβ decay of the (9/2+ ground) state of91Ru has been investigated. Aβ decay scheme of91Ru(9/2+) has been established. The half-life of91Ru(9/2+) has been measured to be 9±1 s.


Spectroscopy Elementary Particle Excitation Energy Residual Activity Shell Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Lederer, C.M., Shirley, V.S.: Table of Isotopes. 7th Edn. New York: J. Wiley & Sons 1978Google Scholar
  2. 2.
    de Lange, J.C., Bron, J., Poelgeest, A., Verheul, H., Ewbank, W.B.: Z. Phys. A — Atoms and Nuclei279, 79 (1976)Google Scholar
  3. 3.
    Gloeckner, D.H., Macfarlane, M.H., Lawson, R.D., Serduke, F.J.D.: Phys. Lett.40B 597 (1972)Google Scholar
  4. 4.
    Gloeckner, D.H., Serduke, F.J.D.: Nucl. Phys. A220, 477 (1974)Google Scholar
  5. 5.
    Gross, R., Frenkel, A.: Nucl. Phys. A267, 85 (1976)Google Scholar
  6. 6.
    Serduke, F.J.D., Lawson, R.D., Gloeckner, D.H.: Nucl. Phys. A256, 45 (1976)Google Scholar
  7. 7.
    Fields, C.A., de Boer, F.W.N., Kraushaar, J.J., Pratt, W.W., Ristinen, R.A., Samuelson, L.E.: Z. Phys. A — Atoms and Nuclei295, 365 (1980)Google Scholar
  8. 8.
    Takagi, N.: Nucl. Phys. A346, 93 (1980)Google Scholar
  9. 9.
    Serduke, F.J.D., Henning, W.: Bull. Am. Phys. Soc.20, 73 (1975)Google Scholar
  10. 10.
    Diana, B.J., de Boer, F.W.N., Fields, C.A.: Z. Phys. A — Atoms and Nuclei306, 171 (1982)Google Scholar
  11. 11.
    Nolte, E., Geschonke, G., Berdermann, K., Oberschmidt, R., Zierl, R., Feil, M., Jahnke, A., Kress, M., Morinaga, H.: Nucl. Instrum. Methods158, 311 (1979)Google Scholar
  12. 12.
    Nolte, E., Geschonke, G., Berdermann, K., Kress, M., Schollmeier, W., Shida, Y., Morinaga, H.: IEEE Trans. Nucl. Sci.26, 3724 (1979)Google Scholar
  13. 13.
    Amusa, A., Lawson, R.D.: priv. com. 1982 and following paper in this volumeGoogle Scholar
  14. 14.
    Ogawa, K.: Private communication 1982Google Scholar
  15. 15.
    Seeger, P.A., Howard, W.M.: In: The 1975 Mass Predictions. Maripuu, S. (ed.). At. Data Nucl. Data Tables17, 476 (1976)Google Scholar
  16. 16.
    Hagberg, E., Hardy, J.C., Schmeing, H., Clifford, E.T.H., Koslowsky, V.T.: Nucl. Phys. A395, 152 (1983)Google Scholar
  17. 17.
    Arnell, S.E., Sjöberg, S., Skeppstedt, Ö., Wallander, E., Nilsson, A., Sawa, Z.P., Tinnas, G.: Z. Phys. A — Atoms and Nuclei289, 89 (1978)Google Scholar
  18. 18.
    Gallagher, P.W., Schneider, E.W., Walters, W.B.: Z. Phys. A — Atoms and Nuclei296, 81 (1980)Google Scholar

Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • P. Komninos
    • 1
  • E. Nolte
    • 1
  • P. Blasi
    • 2
  1. 1.Fakultät für PhysikTechnische Universität MünchenGarchingFederal Republic of Germany
  2. 2.Department of PhysicsUniversity of FlorenceItaly

Personalised recommendations