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Kamikubota, N.

Paper Title Page
RPAT043 Developments of the Calibration Tools for Beam Position Monitor at J-PARC Linac 2777
 
  • S. Sato, H. Akikawa, T. Tomisawa, A. Ueno
    JAERI/LINAC, Ibaraki-ken
  • Z. Igarashi, M. Ikegami, N. Kamikubota, S. Lee, T. Toyama
    KEK, Ibaraki
 
  In the J-PARC LINAC, there are mainly two requirements for the beam based calibration of beam position monitors (BPMs). One is that BPMs need to be calibrated with the accuracy of about a hundred micro-meters to minimize beam loss for the world highest class of proton intensity. The other is that about a hundred of BPMs need to be calibrated consistently. To achieve these requirements, the calibration tool are being developed with experiences on real beam in a MEBT line set for the DTL commissioning. Tools for simulating the beam trajectory using transport matrix (e.g. T3D) are being developed as well. The calibrated beam positions measured by BPMs are used in the simulation for tuning the beam. Implementation of the calibration tools on the same platform (e.g. SAD) with the simulation tools is important for higher usability during commissioning of whole J-PARC. In this paper, details of these developments around BPMs are to be reported.  
ROPA003 Present Status of the J-PARC Control System 302
 
  • T. Katoh, K.  Furukawa, N. Kamikubota, H. Nakagawa, J.-I. Odagiri, G.S. Shen, Y. Takeuchi, N. Yamamoto, M. Yoshii
    KEK, Ibaraki
  • H. Sakaki, H. Sako, H. Takahashi, F. Tamura, H. Yoshikawa
    JAERI, Ibaraki-ken
 
  Construction of the J-PARC control system is in progress and the present status is reported. The control system is based on EPICS tool-kit used in KEKB and other accelerator control systems at KEK. The control hardware and network system for Linac and RCS(Rapid Cycling Synchrotron) have been installed and software is under development now. The operation of Linac is expected in next year. The test of the first part of the accelerator complex; e.g. ion source, RFQ and the first DTL(20 MeV) were done at KEK site. Development of various software such as device drivers for the new equipment, device support routines, and some application programs for operators were also developed.  
FPAT065 Experience of Prototype Control System for the J-PARC Proton Linac
 
  • N. Kamikubota
    KEK, Ibaraki
 
  The J-PARC, a high-intensity proton accelerator facility, started construction in 2001 as a 5-year project. Though the construction site is JAERI (Tokai), the pre-injector part of the proton linac was constructed at KEK (Tsukuba). Early commissioning studies with proton beams have been carried out at KEK in 2002-2004. A prototype control system based on the EPICS toolkit was developed as a part of commissioning studies. 1) New software and hardware devices, which will be used in J-PARC, were developed and evaluated with real beams. 2) We migrated existing small control systems into a single EPICS-based control system. This paper reports developments and experiences with the prototype control system. Future extensions toward the whole J-PARC facility are also given.