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Igarashi, Z.

Paper Title Page
TUPCH061 Installation of Beam Monitor Sensors in the LINAC Section of J-PARC 1151
 
  • S. Sato, H. Ao, T. Tomisawa, A. Ueno
    JAEA/LINAC, Ibaraki-ken
  • H. Akikawa
    JAEA, Ibaraki-ken
  • Z. Igarashi, S. Lee
    KEK, Ibaraki
 
  In the LINAC section of J-PARC, we have several type of sensors of monitor, i.e, Beam Position Monitor, Beam Profile Monitor, Beam Size Monitor, Current Monitor, Beam Phase Monitor, Beam Loss Monitor. Those sensors are being installed currently. The procedures, remarks during the installation, status are described in this paper. As an examle, the beam postion monitors are one of sensors which are taken cared intensively for their positioning on their housing quadrupole magnet, then our cares during their installation are described .  
TUPLS028 An Irradiation System for Carbon Stripper Foils with 750 keV H- Beams 1550
 
  • A. Takagi, Y. Arakida, Z. Igarashi, K.I. Ikegami, C. Kubota, I. Sugai, Y. Takeda
    KEK, Ibaraki
  • S. Dairaku, N. Saito, A. Sato, K. Senzaki
    Kyoto University, Kyoto
  • Y. Irie
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
 
  Carbon stripper foils of around 300 ug/cm2 will be used as a stripping of H-ion beam of the 3 GeV Rapid Cycling Synchrotron in the J-PARC. The foil should have a long lifetime with mechanically strong against high temperature of 1800K due to high-energy deposition by high intensity H-ion and circulating bunched proton beam irradiations. For this purpose, we have installed a new irradiation system using high intensity pulsed and dc H-beams of the KEK 750keV Cocksfoot-Walton accelerator. By adjusting the peak intensity and the pulse length of the hydrogen beams appropriately, the energy deposition becomes equivalent to that exerted by the incoming H- and the circulating beams at the injection process of the RCS. The new irradiation system and some preliminary results of the carbon stripper foil will be reported.