Article Development of Luminescence Profile Monitor for High-Intensity Proton Accelerator Facility

明午, 伸一郎  ,  松田, 洋樹  ,  湯山, 貴裕  ,  百合, 庸介

Monitoring the beam profile is essential for stable accelerator operation in high-power hadron accelerator facilities. At the spallation neutron source of J-PARC, it is necessary to monitor the two-dimensional (2D) intensity distribution of high-energy proton beams on a target for reducing the on-target peak current density of the beam transported with the nonlinear optics. Therefore, we are developing a 2D profile monitor based on the luminescent materials. In this study, the degradation test of a luminescent material and the operation test of a new monitoring system using a radiation-tolerant optical fiber were performed at the cyclotron facility in TIARA.

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