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Minaev, S.

Paper Title Page
TPPT003 Development of a Normal Conducting CH-DTL 883
 
  • G. Clemente, H. Podlech, U. Ratzinger, R. Tiede
    IAP, Frankfurt-am-Main
  • L. Groening
    GSI, Darmstadt
  • S. Minaev
    ITEP, Moscow
 
  Funding: GSI, EU (CARE, contract number RII3-CT-2003-506395).

The normal conducting "Crossbar H-Type" (CH) accelerating structure is a good candidate for pulsed, high intensity linac application, covering the energy range from 3 to 100 MeV. H Mode cavities are outstanding in the low-beta range with respect to shunt impedance, high acceleration fields, and compact design, That's why we propose to base the 70 ma, 70 MeV, 352 MHz proton linan for GSI FAIR project on that structure. The actual design consists of 11 CH-DTL's for a total length of around 25 m. Latest results from beam dynamics optimisation will be discussed. Moreover, this paper describes the CH-DTL cavity design with enphasis on the optimisation with MacroWave Studio (single cell cross section, as well as multi cell cavity simulation), and on the achieved progress in the development of mechanical design concepts. A stainless steel multicell model cavity is presently fabricated by our institute in collaboration with GSI, in order to investigate manufacturing and assembly details. Based on this experience, the design of a CH prototipe power cavity will be optimised.