CWDD accelerator at Argonne: Status and future opportunities

The Continuous Wave Deuterium Demonstrator (CWDD) accelerator, a cryogenically-cooled (26K) linac, was designed to accelerate 80 mA cw of D to 7.5 MeV. CWDD was being built to demonstrate the launching of a beam with characteristics suitable for a space-based neutral particle beam (NPB). A considerable amount of hardware was constructed and installed in the Argonne-based facility, and major performance milestones were achieved before program funding ended in October 1993. Existing assets have been turned over to Argonne for continuation under other sponsors. These include a fully functional 200 kV cw D injector and high power (1 MW) cw rf amplifier, a cw RFQ that has been tuned, leak checked and aligned, and a partially completed ramped-gradient DTL. Project status and achievements are reviewed and proposals for future use of the equipment are discussed.