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Ohkawa, T.

Paper Title Page
MOPAN029 XAL Online Model Enhancements for J-PARC Commissioning and Operation 218
 
  • C. K. Allen, M. Ikegami
    KEK, Ibaraki
  • H. Ikeda
    Visual Information Center, Inc., Ibaraki-ken
  • T. Ohkawa
    JAEA, Ibaraki-ken
  • H. Sako, G. B. Shen
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • A. Ueno
    JAEA/LINAC, Ibaraki-ken
 
  Funding: Work supported by a KEK foreign visiting researcher grant

The XAL application development environment has been installed as a part of the control system for the Japan Proton Accelerator Research Center (J-PARC). XAL was initially developed at SNS and has been described at length in previous conference proceedings (e.g., Chu et. al. APAC07, Galambos et. al. PAC05, etc.). The fundamental tenet of XAL is to provide a consistent, high-level programming interface, along with a set of high-level application tools, all of which are independent of the underlying machine hardware. Control applications can be built that run at any accelerator site where XAL is installed. Of course each site typically has specific needs not supported by XAL and the framework was designed with this in mind: each institution can upgrade XAL which then is accessible to all users. We outline the upgrades and enhancements to the XAL online model necessary for accurate simulation of the J-PARC linac. For example, we have added permanent magnet quadrupoles and additional space charge capabilities such as off-centered and rotated beams and bending magnets with space charge. We present the physics models for the upgrades as well as the software architecture supporting them.

 
THPAN043 Comparison of Trajectory Between Modeling and Experiment for J-PARC Linac 3324
 
  • T. Ohkawa, K. Hasegawa
    JAEA, Ibaraki-ken
  • H. Ao, A. Ueno
    JAEA/LINAC, Ibaraki-ken
  • M. Ikegami
    KEK, Ibaraki
  • H. Sako
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
 
  In the beam commissioning of J-PARC (Japan Proton Accelerator Research Complex) linac, three simulations codes are used to model the accelerator. We have compared with the experimental results obtained in the beam commissioning to date, where a basic agreement has been confirmed between the modeling and the actual beam behavior.