Beta decay properties of Er148 and Ho148

K. S. Toth, D. C. Sousa, J. M. Nitschke, and P. A. Wilmarth
Phys. Rev. C 37, 1196 – Published 1 March 1988
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Abstract

The decay properties of Er148 and Ho148, produced in Ni58 bombardments of Mo94, were investigated following on-line mass separation. New γ rays were observed for both nuclides. Transitions assigned to Ho148 decay are predominantly from the decay of the high-spin isomer; based on its decay characteristics, we propose that this state in Ho148 has a spin assignment of 6. The decay pattern of Er148 shows that the Jπ of the Ho148 low-spin isomer is 1+. Coincidences between protons and x and γ rays establish Er148 and Ho148 to be β-delayed-proton precursors. In the β decay of Dy148, three weak γ rays were observed in addition to the one intense 620.2-keV transition that has been known to follow the nuclide’s decay.

  • Received 10 August 1987

DOI:https://doi.org/10.1103/PhysRevC.37.1196

©1988 American Physical Society

Authors & Affiliations

K. S. Toth

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831

D. C. Sousa

  • Eastern Kentucky University, Richmond, Kentucky 40475

J. M. Nitschke and P. A. Wilmarth

  • Lawrence Berkeley Laboratory, Berkeley, California 94720

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Issue

Vol. 37, Iss. 3 — March 1988

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