The Residual gas ionization profile monitor in the J-PARC 3-GeV Rapid Cycling Synchrotron

Harada, Hiroyuki  ; Kato, Shinichi*

The residual gas Ionization Profile Monitor (IPM) is developed in the J-PARC 3-GeV RCS. The IPM is a non-destructive beam profile monitor to observe a circulating transverse beam profile in the ring. It is very important to observe the beam profile turn-by-turn in the ring for identification of the beam loss and emittance growth source because the beam power of accelerator is limited by the beam loss from the view point of radio activation at these accelerator devices. The detail IPM system are introduced and latest results in beam commissioning will be reported in this presentation.