Elsevier

Nuclear Physics

Volume 43, May–June 1963, Pages 560-597
Nuclear Physics

Coulomb excitation of Tb159, Ho165 and Tm169 with O16 ions

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Abstract

The Coulomb excitation of Tb159, Ho165 and Tm169 has been studied using principally 60 MeV O16 ions as projectiles. Both gamma ray and conversion electron spectra were taken. Rotational bands observed at 514 and 687 keV in Ho165, at 580 (and possibly ≈ 1280) keV in Tb159 and at 570 (and possibly ≈ 1170) keV in Tm169 have been assigned as collective (gamma vibrational) bands. The bands at 361 keV in Ho165, at 348 and 971 keV in Tb159 and at ≈ 900 keV in Tm169 are ascribed to intrinsic (Nilsson) configurations. The properties of these bands are discussed in some detail.

By multiple excitation 6 or 8 members of each ground state rotational band were excited. The analysis of the energies of these levels indicates the presence of higher-order Coriolis terms in the rotational energy formula in the cases Tb159 and Tm169.

References (26)

  • T. Huus

    Nucl. Instr.

    (1961)
  • O. Nathan et al.

    Nuclear Physics

    (1960)
  • B.R. Mottelson et al.

    Mat. Fys. Skr. Dan. Vid. Selsk

    (1959)
  • E.L. Hubbard

    UCRL-9053

    (January, 1960)
  • B.H. Ketelle et al.

    Phys. Rev.

    (1959)
  • K. Alder et al.

    Revs. Mod. Phys.

    (1956)
  • A.S. Davydov et al.

    JETP

    (1958)
    A.S. Davydov

    JETP

    (1959)
    A.S. Davydov

    Nuclear Physics

    (1960)
  • S.G. Nilsson

    Mat. Fys. Medd. Dan. Vid. Selsk.

    (1955)
  • F.S. Stephens et al.

    Phys. Rev. Lett.

    (1959)
  • O. Kofoed-Hansen et al.

    Mat. Fys. Medd. Dan. Vid. Selsk.

    (1950)
  • B. Elbek et al.

    Nucl. Instr.

    (1961)
  • E.L. Chupp et al.

    Phys. Rev.

    (1958)
  • L.A. Sliv et al.

    Coefficients of the internal conversion of gamma radiation, part I, K-shell

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    ††

    Work performed under the auspices of the U.S. Atomic Energy Commssion.

    On leave from the Institute for Theoretical Physics, University of Copenhagen, Denmark.

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