Eur. Phys. J. A (2005) 23: 417-428
https://doi.org/10.1140/epja/i2004-10104-y

Decay studies of ^210-214Fr using α- γ-coincidences

¹ Gesellschaft für Schwerionenforschung mbH, D-64220, Darmstadt, Germany
² Institut für Physik, Johannes Gutenberg-Universität Mainz, D-55099, Mainz, Germany
³ Institut für Kernphysik, Johann Wolfgang Goethe-Universität, D-60486, Frankfurt am Main, Germany

^* e-mail: P.Kuusiniemi@gsi.de

Received: 28 April 2004
Accepted: 10 November 2004
Published online: 12 January 2005

Abstract

The α-decay fine structure of ^210-214Fr has been studied by α-γ-coincidence measurements. The nuclei were produced using the ¹²C on ²⁰⁹Bi reaction. Evaporation residues recoiling out of the target were separated in-flight by the velocity filter SHIP and stopped in a position-sensitive 16-strip PIPS-detector in order to study their subsequent decays. In the present work new and improved results for ^210-214Fr, produced by α-decay of the primary reaction products ^214-218Ac, were extracted. The results are discussed and compared to previously published data.