Design and delivery of beam monitors for the energy-upgraded linac in J-PARC

Miura, Akihiko ; Ouchi, Nobuo ; Oguri, Hidetomo  ; Hasegawa, Kazuo; Miyao, Tomoaki*; Ikegami, Masanori*

In J-PARC Linac, an energy upgrade project has started to achieve the design beam power of 1 MW at the exit of downstream synchrotron. To meet with significant upgrades of the beam parameters, beam monitors used for the beam commissioning are modified and fabricated. We discuss how to design and assemble the beam monitors for the upgraded Linac. We delivered them for the new upgraded beam line periodically and newly fabricated monitors for the longitudinal matching are also delivered because of the frequency jump between original RF cavity and newly developed cavity. Finally we suppose the commissioning plans to support the monitor check.