RECENT ADVANCES IN LASER SPECTROSCOPY AT ISOLDE

The production of rare isotopes at facilities such as ISOLDE is often compromised by the presence of intense isobaric contaminant beams. This has necessitated extensive research and development into cleaner production methods, such as the laser ion source, as well optimization of target materials and design. In a few special cases, it has been possible to use these techniques to even produce isomeric beams for spectroscopy and post acceleration. Such selectivity is not possible for all elements and there are still many cases prevented by isobaric contamination. During the last three years a new laser spectroscopy experiment CRIS has been established at ISOLDE that aims to produce a universal method of isotope purification for secondary experiments, such as nuclear spectroscopy. This new technique offers an efficient method for selecting either the ground state or long lived isomeric state > 1 ms. DOI:10.5506/APhysPolB.44.627