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Kakihara, K.

Paper Title Page
TUP010 Pulse-to-Pulse Mode Switching of KEKB Injector Linac 407
  • T. Kamitani, K. Furukawa, N. Iida, M. Ikeda, K. Kakihara, M. Kikuchi, T. Mimashi, S. Ohsawa, M. Satoh, A. Shirakawa, T. Sugimura, T. Suwada, K. Yokoyama
    KEK, Ibaraki

KEKB injector linac supplies electron and positron beams to the KEKB storage rings and the synchrotron radiation facility rings (PF, AR) as well. Injection modes to these four destinations are switched by inserting and extracting positron generation target, changing magnet parameters and acceleration rf phases. To enable pulse-by-pulse switching in three out of the four modes, a pulse bend and pulse steerings are introduced. For DC quads and DC steerings, compatible beam-optical settings for beams of different beam-energy profiles are introduced. We have been performing beam studies to establish the pulse-by-pulse mode switching for daily beam operation. This paper describes a scheme for the mode switching and reports on an achievement of the beam studies.