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Tomisawa, T.

Paper Title Page
TH5RFP061 Study of J-PARC Linac Beam Position Monitor as Phase Monitor 3591
 
  • S. Sato, K. Hasegawa, A. Miura, T. Morishita, H. Sako, A. Ueno, H. Yoshikawa
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • Z. Igarashi, M. Ikegami
    KEK, Ibaraki
  • T. Tomisawa
    JAEA/LINAC, Ibaraki-ken
  
 

In the J-PARC LINAC, BPMs with 4 strip lines (up, down, right, left) have been used to monitor the beam position by taking log ratio of signals on the opposite (facing) sides of stirp lines. We are studying possibility to monitor beam phase by measuring phase of summed signal of all four stlip lines. In this paper, status of the study is presented.

  
TH5RFP096 Study of Beam Loss Measurement in J-PARC Linac 3678
 
  • A. Miura, K. Hasegawa, T. Morishita, H. Sako, H. Yoshikawa
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • Z. Igarashi, M. Ikegami
    KEK, Ibaraki
  • S. Sato, T. Tomisawa, A. Ueno
    JAEA/LINAC, Ibaraki-ken
  • H. Takahashi
    JAEA, Ibaraki-ken
  
 

Over hundred beam loss monitors (BLM) in the J-PARC LINAC have been used to measure the beam loss observed during the accelerator operation. Dose rates distributed in LINAC area were compared with beam loss records taken by the BLMs. This paper describes the results of the operational data and their comparisons with the dose rates of LINAC area.