Author: Spizzo, V.
Paper Title Page
MOPC013 Design, Fabrication and High Power RF Test of a C-band Accelerating Structure for Feasibility Study of the SPARC Photo-injector Energy Upgrade 89
 
  • D. Alesini, R. Boni, G. Di Pirro, R. D. Di Raddo, M. Ferrario, A. Gallo, V.L. Lollo, F. Marcellini
    INFN/LNF, Frascati (Roma), Italy
  • G. Campogiani, A. Mostacci, L. Palumbo, S. Persichelli, V. Spizzo
    Rome University La Sapienza, Roma, Italy
  • T. Higo, K. Kakihara, S. Matsumoto
    KEK, Ibaraki, Japan
  • S. Verdú-Andrés
    TERA, Novara, Italy
 
  The energy upgrade of the SPARC photo-injector from 170 to 250 MeV will be done by replacing a low gradient 3m S-Band structure with two 1.5m high gradient C-band structures. The structures are traveling wave, constant impedance sections, have symmetric waveguide input couplers and have been optimized to work with a SLED RF input pulse. A prototype with a reduced number of cells has been fabricated and tested at high power in KEK (Japan) giving very good performances in terms of breakdown rates at high accelerating gradient (>50 MV/m). The paper illustrates the design criteria of the structures, the fabrication procedure and the high power RF test results.