Initial Operation of the New Bevatron Local Injector

Initial operational characteristics of a new Bevatron injector system are described. It is capable of providing an independent source of ions to the Bevatron through mass 40. The new injector consists of a sputter ion PIG source, operating on a 60 kV DC platform, an RFQ linac, and two Alvarez linacs, all operating at 199 MHz. Beams with q/A ¿ 0.14 are accelerated to 200 keV/n in the RFQ and to 800 keV/n in the first Alvarez tank. Each Alvarez operates in the 2ß¿ mode, and each is followed by a foil stripper. Beams with a q/A ¿ 0.32 are accelerated through the second Alvarez to 5 MeV/n, fully stripped, and injected into the Bevatron. Because the Bevatron can be efficiently switched between this injector and the Super HILAC injector, a more efficient operations schedule is made possible to meet the increasingly diverse needs of the Biomedical and Nuclear Science research programs.