Author: Feschenko, A.
Paper Title Page
MOPME027 Bunch Length Measurement of 181 MeV Beam in J-PARC Linac 532
  • A. Miura, H. Oguri, N. Ouchi, J. Tamura
    JAEA/J-PARC, Tokai-mura, Japan
  • A. Feschenko, A.N. Mirzojan
    RAS/INR, Moscow, Russia
  • K. Futatsukawa, T. Miyao
    KEK, Ibaraki, Japan
  • M. Ikegami
    J-PARC, KEK & JAEA, Ibaraki-ken, Japan
  • T. Maruta
    KEK/JAEA, Ibaraki-Ken, Japan
  In J-PARC Linac, an energy and intensity upgrade project has started since 2009 using Annular Coupled Structure (ACS) cavities. Because the longitudinal matching before ACS cavities is additionally required, we decided to employ the bunch shape monitors (BSMs) to measure the longitudinal beam profile. After three years from the start of BSM project, three BSMs were fabricated. All three BSMs were installed during the summer shutdown of 2012. We tried to measure the longitudinal beam profile exited from SDTL cavities. In this paper, we introduce the outline of BSM project, the first data acquisition and related small problems.