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Hiramatsu, S.

Paper Title Page
MOPE012 Performance of the Main Ring BPM during the Beam Commissioning at J-PARC 981
 
  • T. Toyama, D.A. Arakawa, S. Hiramatsu, S. Igarashi, S. Lee, H. Matsumoto, J.-I. Odagiri, M. Okada, M. Tejima, M. Tobiyama
    KEK, Ibaraki
  • K. Hanamura, S. Hatakeyama
    MELCO SC, Tsukuba
  • Y. Hashimoto, K. Satou, J. Takano
    J-PARC, KEK & JAEA, Ibaraki-ken
  • N. Hayashi
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  
 

Experiences of operating BPM's during beam commissioning at the J-PARC MR are reported. The subjects are: (1) bug report, statistics and especially the effect of a beam duct step, (2) position resolution estimation (<30 micrometers with 1 sec averaging), (3) beam based alignment.

  
WEPEB007 The Data Acquisition System of Beam Position Monitors in J-PARC Main Ring 2698
 
  • S. Hatakeyama, N. Hayashi
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • D.A. Arakawa, Y. Hashimoto, S. Hiramatsu, J.-I. Odagiri, M. Tejima, M. Tobiyama, T. Toyama, N. Yamamoto
    KEK, Ibaraki
  • K. Hanamura
    MELCO SC, Tsukuba
  • K. Satou
    J-PARC, KEK & JAEA, Ibaraki-ken
  
 

The Data Acquisition System of Beam Position Monitors(BPMs) in J-PARC Main Ring are consist of 186 Linux-based Data Processing Cirquits(BPMCs) and 12 EPICS IOCs. They are important tool to see the COD and turn-by-turn beam positions. This report describes the process of the data reconstruction which include how the various calibration constants are applied.