Elsevier

Nuclear Physics A

Volume 470, Issue 1, 17 August 1987, Pages 141-160
Nuclear Physics A

Levels in 109Rh

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Abstract

The levels in 109Rh have been investigated via the γ-rays following the β decay of 34.5 s 109Ru. The ruthenium activity was produced in the thermal neutron-induced fission of 149Cf and separated chemically from the fission product mixture with the on-line centrifuge system SISAK. The emitted γ-rays were studied by γ singles and γγ(t) coincidence measurements. In addition, the 110Pd(d, 3He) reaction was investigated at Ed = 50 MeV to study the proton-hole states in 109Rh. From the comparison of the measured angular distributions with DWBA calculations l-transfers and spectroscopic factors were deduced. The level scheme of 109Rh that was obtained is discussed and compared with neighbouring nuclei and with recent calculations in the framework of the interacting bosonfermion model (IBFM-1). An interpretation of the observed candidates for intruder states as a rotational band built upon the [431] Nilsson configuration is proposed.

References (31)

  • N. Kaffrell et al.

    Nucl. Phys.

    (1986)
  • J. Blachot

    Nucl. Data Sheets

    (1984)
  • G. Franz et al.

    J. Inorg. Nucl. Chem.

    (1978)
  • J. Jolie et al.

    Nucl. Phys.

    (1985)
  • E. Stender et al.

    Radiochem. Radioanal. Lett.

    (1980)
  • F. Rösel et al.

    At. Data Nucl. Data Tables

    (1978)
  • J.B. Wilhelmy

    UCRL-Report 18978

    Doctoral thesis

    (1969)
  • B.F. Rider et al.

    Report NEDO-12154-2(D)

    (1977)
  • H. Bartsch et al.

    Z. Phys.

    (1977)
  • E.W. Schneider et al.

    Phys. Rev.

    (1976)
  • K.S. Krane et al.

    Phys. Rev.

    (1977)
  • K.E.G. Löbner
  • T. Seo et al.

    Z. Phys.

    (1985)
  • J. Rogowski et al.

    Ann. Report 1986

  • G. Franz

    Doctoral thesis

  • Cited by (0)

    This research was supported by the Bundesministerium für Forschung und Technologie (Federal Republic of Germany), the Interuniversity Institute for Nuclear Sciences (Belgium), the Natural Science Research Council (Sweden), the Research Council for Science and Humanities (Norway), the Stichting voor Fundamenteel Onderzoek der Materie (FOM) with financial support from the Nederlandse Organisatie voor Zuiver Wetenschappelijk Onderzoek (ZWO), and the Department of Energy (USA).

    The authors are grateful to H. Folger, GSI Darmstadt, for preparation of the targets use in the (d, 3He) reaction and to K.H. Gläsel for his help during the experiments at the Mainz reactor. We would like to thank the US Transplutonium Research Committee for making the 249Cf available. Profs. A.J. Deruytter, G. Herrmann, A.C. Pappas and J. Rydberg are acknowledged for their interest in this work.

    1

    Senior Research Associate, National Fund for Scientific Research, Belgium.

    2

    Present address: Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Milan, Italy.

    3

    Present address: Natuurkundig Laboratorium, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands.

    4

    Present address: Universitas Gadjah Mada, Yogyakarta, Indonesia.

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