Short-Lived <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>α</mi></math></span> Emitters of Thorium: New Isotopes <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Th</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>2</mn><mn>1</mn><mn>8</mn><mo>−</mo><mn>2</mn><mn>2</mn><mn>0</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

O. Häusser; W. Witthuhn; T. K. Alexander; A. B. McDonald; J. C. D. Milton; A. Olin

doi:10.1103/PhysRevLett.31.323

Short-Lived $α$ Emitters of Thorium: New Isotopes ${}^{218 - 220}{Th}$

O. Häusser, W. Witthuhn, T. K. Alexander, A. B. McDonald, J. C. D. Milton, and A. Olin

Phys. Rev. Lett. 31, 323 – Published 30 July 1973

Abstract

The $α$ -decay energies and half-lives of three new thorium isotopes, ${}^{218 - 220}{Th}$ , have been measured by a simple recoil technique. The observed $α$ -decay widths are in qualitative agreement with Mang's shell-model theory.

Received 5 June 1973

DOI:https://doi.org/10.1103/PhysRevLett.31.323

Authors & Affiliations

O. Häusser, W. Witthuhn^*, T. K. Alexander, A. B. McDonald, J. C. D. Milton, and A. Olin^†

Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, Canada

^*Canada Council Postdoctoral Fellow, on leave of absence from the University of Erlangen-Nürnberg, W. Germany.
^†National Research Council Postdoctoral Fellow.