Solid Material Development With The Argonne National Laboratory Ecr Ion Sources

Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas - introduction of materials with low vapour pressures, and increasing the beam intensities of heavy beams (i.e. - lead and uranium). An-induction oven, with a demonstrated operating temperature extending to 2000 degrees C, has been utilized to produce a Ti-50 beam with an intensity of 5.5e mu A (12+). In addition, a refinement of the sputter technique has been employed which has resulted in a 42% improvement in lead beam intensities. Details of the induction oven as well as the refined sputter technique will be presented.