IAP, Frankfurt am Main
The CH-structure (Crossbar-H-mode) is a superconducting cavity for the low and medium energy range operated in the H21-mode. Due to its well designed geometry and by using the special KONUS (KOmbinierte NUll Grad Struktur) beam dynamics the superconducting CH-cavity is an excellent candidate for the efficient acceleration in high power proton and ion accelerators. One of many possible applications for this kind of superconducting RF cavity is the EUROTRANS project (EUROpean Research Programme for the TRANSmutation of High Level Nuclear Waste in an Accelerator Driven System, 600 MeV, 352 MHz). A prototype cavity has been developed and tested successfully with a gradient of 7 MV/m. At present a new superconducting CH-cavity with improved geometry for high power applications is under construction. The status of the cavity development related to EUROTRANS is presented.
