TRIPLE-SPOKE CAVITIES AT FZJ

We report the situation with superconducting triplespoke cavity activities at the research center in Juelich (FZJ). The Nb prototype of the 760 MHz, β=0.2 cavity is already in fabrication and should be tested this year. This work has been initiated for the European Spallation Source project. In the frames of the new European project of High Intensity Pulsed Proton Injector (HIPPI) the 352 MHz, β=0.48 cavity is under developments. This cavity should be designed, built and tested in the Lab within next few years.