First on-line results for As and F beams from HRIBF target/ion sources

摘要

The first on-line tests of the ion sources to provide radioactive ion beams of (sup 69,70)As and (sup 17,18)F for the Holifield Radioactive Ion Beam Facility have been performed using the UNISOR facility at HRIBF. For (sup 70)As the measured efficiency is 0.8 (+-) 0.3% with a hold-up time of 3.6 (+-) 0.3 hours as measured with (sup 72)As at a target temperature of 1,270 C. For (sup 17)F the efficiency for Al(sup 17)F is 0.0024 (+-) 0.0008% with a hold-up time of 16.4 (+-) 0.8 m as measured with Al(sup 18)F at a target temperature of 1,470 C.