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MOAP04 Recent progresses on FFAG accelerators proton, acceleration, target, emittance 16
 
  • Y. Mori
    KURRI, Osaka
 
TUBY02 Physics Design of a Multi-GeV Superconducting H-minus Linac linac, rfq, proton, lattice 134
 
  • P. N. Ostroumov
    ANL, Argonne, Illinois
  • G. Apollinari, G. W. Foster, R. C. Webber
    Fermilab, Batavia, Illinois
  We discuss design of a pulsed linac based on 430 independently phased superconducting resonators for acceleration of 40 mA peak current H-minus beam up to 8-GeV. Most of the voltage gain (from ~410 MeV to 8 GeV) is provided by ILC cavities and squeezed ILC-style cavities operating at 1300 MHz. Significant cost savings are expected from the use of an rf power fan out from high-power klystrons to multiple cavities. The front end of the linac operating at 325 MHz will be based on multiple-spoke cavities. A room temperature section comprised of a conventional RFQ and 16 short normal conducting H-type resonators is proposed for the initial acceleration of an H-minus or proton beam up to 10 MeV. We have developed an accelerator lattice which satisfies the beam physics and engineering specifications.  
 
WEBX05 Scaling laws for space charge resonances emittance, resonance, space-charge, simulation 268
 
  • I. Hofmann, G. Franchetti
    GSI, Darmstadt
  • S.-Y. Lee
    IUCF, Bloomington, Indiana
  Space charge can be the driving term of nonlinear resonances, like the resonant emittance exchange 2Qx-2Qy=0 ("Montague resonance", in linacs and high-intensity rings), or the fourth-order structure resonance 4Qx=n (high-intensity rings, FFAG's). In this study we present scaling laws to describe the dependence of the expected emittance growth effect on the initial emittances, the tune shift and/or the crossing rate through the resonance.