Yields of neutron-rich rubidium and cesium isotopes from fast-neutron induced fission of U-238, obtained by studying their release from a thick ISOL target

摘要

In the framework of the EURISOL project, the production of neutron-rich isotopes of rubidium and cesium has been studied. The intensities of mass-separated beams of rubidium and cesium isotopes generated from a thick (UCx)-U-238 target connected to a surface ionizer have been measured. The release properties of Cs-140 and Rb-91 have been investigated. The obtained results allowed us to determine the relative fission yields of rubidium and cesium isotopes with high accuracy. (c) 2006 Elsevier B.V. All rights reserved.