Author: Beunas, A.
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WEXGBF1 Testing of the ESS MB-IOT Prototypes 1759
  • M. Jensen
    ESS, Lund, Sweden
  • C. Bel, A. Beunas, D. Bussiere, P. Cacheux, V. Hermann, J.C. Racamier, C. Robert
    TED, Thonon, France
  • M. Boyle, H. Schult
    L-3, Williamsport, Pennsylvania, USA
  • G. Cipolla, E. Montesinos, M.S.B. Sanchez Barrueta
    CERN, Geneva 23, Switzerland
  • T. Kimura, P.E. Kolda, P. Krzeminski, L. Kurek, S. Lenci, O.S. Sablic, L. Turek, C. Yates
    CPI, Palo Alto, California, USA
  • M.F. Kirshner
    LANL, Los Alamos, New Mexico, USA
  • R.D. Kowalczyk, A.V. Sy, B.R. Weatherford
    SLAC, Menlo Park, California, USA
  • A. Zubyk
    L3 EDD, Williamsport, USA
  ESS is considering the use of MB-IOTs for parts of the high-beta linac. Two prototypes have been built by indus-try, namely L3 and CPI/Thales and have passed the factory acceptance test with excellent results. Both tubes will go through further extensive testing at CERN for ESS follow-ing delivery and a final decision on tube technology will be taken in April 2018. This invited talk presents the back-ground for the technical decision of IOTs vs klystrons, associated impact for ESS, and latest plans for industrial production of these IOTs for ESS.  
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WEPMF002 Operational Experience with IOTs at Alba Synchrotron 2372
  • J.R. Ocampo, B. Bravo, R. Fos, F. Pérez, A. Salom, P. Solans
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  • S. Bethuys, A. Beunas, M. Grezaud, P. Reynaud
    TED, Thonon, France
  • M. Boyle, J. Cipolla, W.F. Coyle, H. Schult
    L-3, Williamsport, Pennsylvania, USA
  ALBA is a 3 GeV Synchrotron light source in operation since 2012. The RF systems are based in Inductive Output Tube (IOT) transmitters. A total of 13 80 kW IOT amplifiers are used to power the Storage Ring and Booster cavities at 500 MHz. The transmitters were initially configured to operate the TH-793-1 and TH-794 IOT from THALES Electron devices. On 2015, the amplifiers have been adapted to operate also the TH-795 from THALES and the L4444-C from L3 Communications. In this paper, a brief overview of the differences between these IOT models will be presented, as well as operation results for each type of IOT from the point of view of performance, reliability and durability.  
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