EU contract number RII3-CT-2003-506395 CARE Conf-04-011-HIPPI DEVELOPMENT OF ROOM TEMPERATURE AND SUPERCONDUCTING CH-STRUCTURES

Abstract In the last decades several types of H-mode cavities have been developed for a wide range of applications. Several drift tube cavities (IH-structure) are in routine operation [1][2]. At the IAP (University of Frankfurt, Germany) a new type of H-mode cavity, the Cross-Bar-H-mode or CH-structure is presently under development. This multicell drift tube cavity is operated in the H 21(0)-mode. The CH-structure is an excellent candidate for high power proton accelerators in the energy range from 3 to 100 MeV. We present the status of the room temperature (r.t.) CHcavity development for a dedicated 70 MeV proton injector for the international accelerator facility FAIR at GSI [3]. Due to its mechanical rigidity this cavity can be realized not only for room temperature but also for superconducting (s.c.) operation. To prove the very promising properties of superconducting CH-structures obtained by simulations, a 352 MHz prototype CH-cavity has been designed. Presently, this cavity is in the final stage of production. We present recent results of the s.c. cavity development and different applications which could take advantage of the s.c. CH-structure (XADS, IFMIF, cw-linac for the production of superheavy elements).In the last decades several types of H-mode cavities have been developed for a wide range of applications. Several drift tube cavities (IH-structure) are in routine operation [1][2]. At the IAP (University of Frankfurt, Germany) a new type of H-mode cavity, the Cross-Bar-H-mode or CH-structure is presently under development. This multicell drift tube cavity is operated in the H 21(0)-mode. The CH-structure is an excellent candidate for high power proton accelerators in the energy range from 3 to 100 MeV. We present the status of the room temperature (r.t.) CHcavity development for a dedicated 70 MeV proton injector for the international accelerator facility FAIR at GSI [3]. Due to its mechanical rigidity this cavity can be realized not only for room temperature but also for superconducting (s.c.) operation. To prove the very promising properties of superconducting CH-structures obtained by simulations, a 352 MHz prototype CH-cavity has been designed. Presently, this cavity is in the final stage of production. We present recent results of the s.c. cavity development and different applications which could take advantage of the s.c. CH-structure (XADS, IFMIF, cw-linac for the production of superheavy elements). Contribution to the conference LINAC 04, Lübeck, Germany Work supported by the European Community-Research Infrastructure Activity under the FP6 “Structuring the European Research Area” programme (CARE, contract number RII3-CT2003-506395). fI I