Speaker
Description
A high-intensity 30 GeV proton beam produced by the J-PARC Main Ring (MR) accelerator is used to generate one of the world’s most intense conventional neutrino beams, which plays a central role in J-PARC’s long-baseline neutrino program. This beam supports the ongoing T2K experiment and will provide accelerator neutrinos to the forthcoming Hyper-Kamiokande experiment, currently under construction. To meet the demands of these experiments, upgrades to the accelerator and its associated infrastructure are in progress, targeting stable operation at an average beam power of up to 1.3 MW in the near future. Operation at this power level will result in substantial irradiation of the beam monitors and beamline components directly upstream of the neutrino production target, making standard hands-on maintenance in that area of the beamline impossible. In this talk, I will present an overview of the planned upgrades to the J-PARC primary proton beamline, which will enable remote maintenance and replacement of certain irradiated components without requiring extended cooldown periods. This remote maintenance approach is expected to reduce equipment-related downtime and limit radiation exposure to personnel.
