Author: Hughes, T.J.S.
Paper Title Page
TUPB091 176 MHz Solid State Microwave Generator Design 672
  • A.Yu. Smirnov, E.V. Ivanov, A.A. Krasnov, K.I. Nikolskiy, N.V. Tikhomirova
    Siemens Research Center, Moscow,, Russia
  • O. Heid, T.J.S. Hughes
    Siemens AG, Erlangen, Germany
  This paper concerns the R&D work upon design of a compact RF amplifier to be used for superconducting CW cavities. The machine under development will operate at 176 MHz with output power of 25 kW in continuous wave regime. It consists of 50 push-pull PCB modules (approx. 500W output power each), connected in parallel to several radial filter rings, which both allow class-F operation and combine the power from the modules, delivering it to a single 50 Ω coax cable. The CST simulations ad the design of 324 MHz test prototype are presented.  
THPB007 A Pulsed Linac Front-end for ADS Applications 855
  • U. Ratzinger, H. Podlech, A. Schempp, K. Volk
    IAP, Frankfurt am Main, Germany
  • U. Hagen, O. Heid, T.J.S. Hughes
    Siemens AG, Erlangen, Germany
  • H. Hoeltermann
    BEVATECH OHG, Offenbach/Main, Germany
  Quite a number of projects worldwide develop proton driver linacs for neutron sources and other accelerator driven systems. One trend is to use a high duty factor and superconducting cavities as much as possible. Alternatively, one can aim on short duty factor and count on a continuing rapid development of pulsed rf amplifiers based on power transistor technology. A 500 mA, 5 % duty factor layout of a proton injector is presented, consisting of a filament driven volume ion source, of a 150 keV transport section and of a 4 m long 162 MHz RFQ up to 2 MeV beam energy. Beam dynamics results as well as the technical design will be shown.