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Sasagawa, A.

Paper Title Page
TUPEA023 The Design of Beam Abort System for the Super KEKB 1378
 
  • T. Mimashi, N. Iida, M. Kikuchi
    KEK, Ibaraki
  • K. Abe, S. Abe
    Hitachi Haramachi Electronics Co. Ltd., Hitachishi, Ibaraki
  • K. Iwamoto
    KFG, NEUSS
  • Y. Makino, T. Ozawa
    Kikusui Chemical Industries Co. Ltd, Kagamihara Shiga
  • A. Sasagawa
    KYOCERA Corporation, Higashiomi-city, Shiga
  • A. Tokuchi
    Pulsed Power Japan Laboratory Ltd., Kusatsu-shi Shiga
 
 

New beam abort system designed for KEKB upgrade, consists of horizontal and vertical kicker magnets, pulsed quadrupole magnets, a Lambertoson septum magnet and a beam dump. Water-cooling ceramic chambers are used for the kicker and pulsed quadrupole magnets. At the KEKB upgrade project, the beam abort gap is required to be less than 200 nsec. The beam currents are increased and their emittance is supposed to be much smaller than KEKB. In order to avoid melting the extraction Ti window, the pulsed quadrupole magnets will be installed. They enlarge the beam cross section at the extract window. The components for the SuperKEKB abort system are developed. The compact water-cooling ceramic chambers are developed to reduce the gap of kicker magnets and bore radius of the pulsed quadrupole magnets. The power supply for the kicker magnet is also developed to satisfy the 200 nsec rise time requirement.