Author: Yoshimoto, M.
Paper Title Page
MOPAB44 Beam Halo Measurement Using a Combination of a Wire Scanner Type Beam Scraper and Some Beam Loss Monitors in J-PARC 3-GeV RCS 143
 
  • M. Yoshimoto, H. Harada, M. Kinsho, K. Okabe
    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. New beam halo mon­i­tor, which is com­bined a wire type beam scraper and some beam loss mon­i­tors, are in­stalled in the ex­trac­tion beam trans­port line. In order to use some beam loss mon­i­tors with a plu­ral­ity of dif­fer­ent sen­si­tiv­i­ties, it's ultra wide dy­namic range can be achieved and beam pro­file in­clud­ing both of the beam core and halo can be ob­tained.  
 
WEO2AB03 Beam Instrumentation at the 1 MW Proton Beam of J-PARC RCS 278
 
  • K. Yamamoto, H. Harada, S. Hatakeyama, N. Hayashi, H. Hotchi, K. Okabe, P.K. Saha, M. Yoshimoto
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
  • Y. Hashimoto, T. Toyama
    J-PARC, KEK & JAEA, Ibaraki-ken, Japan
 
  Rapid Cy­cling Syn­chro­tron(RCS) of Japan Pro­ton Ac­cel­er­a­tor Com­plex(J-PARC) is pro­vid­ing more than 300 kW of pro­ton beam to Ma­te­r­ial and Life sci­ence Fa­cil­ity(MLF) and Main Ring(MR). Last sum­mer shut­down, a new ion source was in­stalled to in­crease out­put power to 1 MW. In order to achieve re­li­able op­er­a­tion of 1 MW, we need to re­duce beam loss as well. Beam qual­ity of such higher out­put power is also im­por­tant for users. We pre­sent beam mon­i­tor sys­tems for these pur­poses.  
slides icon Slides WEO2AB03 [3.242 MB]