A New Total Absorption Spectrometer for the Study of Neutron Deficient Nuclei in the A approx= 70 Region

摘要

Far from the line of stability, β-decay studies are often a primary, if not the sole, source of information on nuclear structure. The measured β-strength distribution for a given decay can be used to verify the accuracy of our theoretical description of the parent nucleus ground state and the states populated in the daughter nucleus. Total absorption spectrometers based on large NaI crystals are well suited tools to determine the β-strength distribution over the whole Q_(EC) decay window. The newly built spectrometer TAgS, dedicated to such studies, will be presented and its performance and possibilities discussed in the light of experiments performed at the CERN/ISOLDE mass separator.