BEAM MONITOR LAYOUT FOR FUTURE ACS SECTION IN J-PARC LINAC

In J-PARC Linac, an energy and intensity upgrade project started since 2009 using Annular Coupled Structure (ACS) cavities. To meet with this upgrade, the design peak current will be increased from the present 30 mA to 50 mA, and the beam energy from 181 MeV to 400 MeV. Along with these significant upgrades of the beam parameters, beam monitors should be followed. Then, the beam monitors which will be used for the beam commissioning are newly designed and fabricated. These monitors will be delivered in the ACS beam line. Bunch shape monitor and scintillation beam loss monitoring system will be newly employed for the new beam line. In this paper, we introduce the beam monitors and their layout for the new beam line of energy upgraded Linac.