Elsevier

Nuclear Physics

Volume 46, July–September 1963, Pages 504-518
Nuclear Physics

Gamma radiations from excited states of N16

https://doi.org/10.1016/0029-5582(63)90620-5Get rights and content

Abstract

A magnetic-lens type beta-ray spectrometer has been used to study the radiations from the reaction N15(d, p) N16. Targets of CrN15 were made by induction-heating chromium foils to 1300°C in a N15-enriched gas atmosphere. Photoelectron spectra of γ-rays K-converted in Cd and Au radiators yielded γ-ray energies of 397.3±1.0, 296.2±1.0, 275.9±1.0, 120.1±0.5, and 100±3 keV. Excited levels of N16 at 397.3±1.0, 296.2±1.0 and 120.1±0.5 keV are inferred from the γ-ray energies. The K internal conversion coefficient of the 120 keV first-excited to ground state transition of N16 has been measured by the “external-internal” conversion method to be 7.23(1±0.20)×10−3. This value shows the 120 keV transition to be E2 which is consistent with the previously indicated spin and parity assignments of 2 and 0 for the ground level and first-excited level, respectively. The relative γ-ray branching of individual levels was also measured.

References (18)

  • M.G. Silbert et al.

    Nuclear Physics

    (1961)
  • R.T. Pauli

    Ark. Fys.

    (1955)
  • E.K. Warburton et al.

    Phys. Rev.

    (1957)
  • J.P. Elliott et al.
  • P.W. Martin et al.

    Bull. Amer. Phys. Soc.

    (1957)
  • G. Brunhart et al.

    Phys. Rev.

    (1958)
  • D.H. Wilkinson

    Phys. Rev.

    (1957)
  • Joan M. Freeman et al.

    Nuclear Physics

    (1957)
  • Solve Hultberg

    Ark. Fys.

    (1959)
There are more references available in the full text version of this article.
††

On leave from the National Taiwan University, Taipei.

Deceased.

View full text