Nuclear Instruments and Methods in Physics Research. Section B, Beam interactions with materials and atoms vol:58 issue:2 pages:252-259
A single stage electron cyclotron resonance (ECR) ion source has been developed for the radioactive ion beam facility in Louvain-la-Neuve. The source was first tested with an off-line test separator using calibrated leaks of neon, nitrogen and carbon dioxide. The lingering time in the source, due to atoms sticking to the walls of the ion source, has been studied. The maximum efficiencies obtained are 52% for Ne-20(1+), 20% for N-15(1+) and 15% for C-12(1+). A N-13(1+) (T1/2 = 9.96 m) efficiency of 8% has been measured on-line.