Speaker
Description
The J-PARC neutrino facility is producing the high intensity muon neutrino beam for the long base-line neutrino oscillation experiment with the conventional method using the 30GeV proton beam from the J-PARC MR accelerator. The neutrino beam-line is originally designed for the proton beam power of 750kW, and the stable neutrino beam production with the 500kW beam power is acieved. The beam power upgrade of the J-PARC MR accelerator and neutrino beam-line has been started aiming to achieve ~1.3MW beam power for the CP violation search in lepton sector.
Because the beam required for the long base-line neutrino experiment is the low-duty pulsed beam, the J-PARC neutrino beam-line utilizes the fast-extraction proton beam. Therefore there are several technical challenges for the beamline equipment design due to the high instantaneous proton intensity. The neutrino oscillation measurement is long-term experiment extend over 5-10 years, the robustness of the beam-line equipment is also very important to keep stable experimental conditions.
In this presentaion, the technical challenges for the high-power neutrino beam facility, the needs and desireds for the related studies on the material propaties will be discussed.