Author: Okabe, K.
Paper Title Page
WEOAA03 Development of the Beam Halo Monitor in the J-PARC 3-GeV RCS 2122
 
  • M. Yoshimoto, N. Hayashi, H. Hotchi, M. Kinsho, S.I. Meigo, K. Okabe, P.K. Saha, K. Yamamoto
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
 
  Transverse beam halo is one of the most important beam parameters due to limit the performance of the high intensity beam accelerator. Therefore the transverse beam halo measurement is required to increase the beam power of the J-PARC 3-GeV RCS. Transverse halo monitors, which are horizontal and vertical scanning aluminum plates type, has been installed in the extraction beam line. But the residual secondary electrons hindered the beam halo diagnostic. Thus we develop the new beam halo monitor with vibrating wire monitor.  
slides icon Slides WEOAA03 [6.701 MB]  
 
TUPPC022 Straight Scaling FFAG Experiment 1209
 
  • J.-B. Lagrange, Y. Ishi, Y. Kuriyama, Y. Mori, R. Nakano, B. Qin, T. Uesugi, E. Yamakawa
    Kyoto University, Research Reactor Institute, Osaka, Japan
  • Y. Niwa, K. Okabe, I. Sakai
    University of Fukui, Faculty of Engineering, Fukui, Japan
 
  Straight scaling FFAG experiment has been done at Kyoto University research reactor institute. Details and results are presented here.  
 
WEPPR006 Serpentine Acceleration in Scaling FFAG 2946
 
  • E. Yamakawa, Y. Ishi, Y. Kuriyama, J.-B. Lagrange, Y. Mori, T. Uesugi
    Kyoto University, Research Reactor Institute, Osaka, Japan
  • K. Okabe, I. Sakai
    University of Fukui, Faculty of Engineering, Fukui, Japan
 
  A serpentine acceleration in scaling FFAG accelerator is examined. In this scheme, high-energy and high-current beam can be obtained in non-relativistic energy region. Longitudinal hamiltonian is derived analytically. Experiment to demonstrate a serpentine acceleration in scaling FFAG is done.