β decay of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ra</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>228</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> and possible level structures in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ac</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>228</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

P. C. Sood; A. Gizon; D. G. Burke; B. Singh; C. F. Liang; R. K. Sheline; M. J. Martin; R. W. Hoff

doi:10.1103/PhysRevC.52.88

β decay of ${}^{228}{Ra}$ and possible level structures in ${}^{228}{Ac}$

P. C. Sood, A. Gizon, D. G. Burke, B. Singh, C. F. Liang, R. K. Sheline, M. J. Martin, and R. W. Hoff

Phys. Rev. C 52, 88 – Published 1 July 1995

Abstract

An iron-free beta spectrometer with pre- and post-acceleration of electrons was used to study β branches and conversion electrons at very low energies in the β decay of ${}^{228}{Ra}$ . Results of conversion-electron and γ-ray spectroscopy are analyzed using β selection rules and two-quasiparticle-rotor model considerations. A tentative ${}^{228}{Ac}$ level scheme, including model-dependent spin-parity and configuration assignments consistent with the available data, is presented.

Received 21 October 1994

DOI:https://doi.org/10.1103/PhysRevC.52.88

Authors & Affiliations

P. C. Sood, A. Gizon, D. G. Burke, B. Singh, C. F. Liang, R. K. Sheline, M. J. Martin, and R. W. Hoff

Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
Department of Physics, Banaras Hindu University, Varanasi 221005, India
Institut des Sciences Nucléaires, IN2P3-CNRS, Université Joseph Fourier, 38026 Grenoble, France
Centre de Spectrométrie Nucléaire et de Spectrometrie de Masse, IN2P3-CNRS Bâtiment 104, F-91405 Campus, Orsay, France
Department of Chemistry and Physics, Florida State University, Tallahassee, Florida 32306
Nuclear Data Project, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
L-234, Lawrence Livermore National Laboratory, Livermore, California 94550

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Vol. 52, Iss. 1 — July 1995

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