Abstract
In continuation to ourβ-endpoint measurements of shortlived Rb-isotopes at ISOLDE we have determined preciseβ-endpoint energies of139,140,141,142,143,144,145,146Cs using our achromatic magnetic electron separator that eliminates low energy electrons. Here only electrons in the neighbourhood of theβ-endpoint are recorded in a low background environment.
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This work is part of the doctoral thesis of M. Przewloka
For financial support we are grateful to the German Bundesminister für Forschung und Technik.