Studies of the release properties of ISOL-target materials using ion implantation

Experiments have been initiated which are designed to measure the time release characteristics of stable ion implanted species from selected refractory target materials which are potential candidates for forming radioactive beams at the proposed Oak Ridge Exotic Beam Facility (OREBF). The experiments are performed at the UNISOR facility by utilizing energetic HHIRF tandem accelerator ion beams to implant the species of interest into selected solid refractory target materials maintained at elevated temperatures within a FEBIAD-type ion source. In this report, we provide thermal time release data and estimates of efficiencies for releasing Cl from Zr5Si3 and 75As, 79Br, and 78Se from Zr5Ge3. (orig.)