HB2025 - the 71st ICFA Advanced Beam Dynamics workshop on High-Intensity and High-Brightness Hadron Beams

High Intensity Beam Commissioning and Operations of J-PARC Linac

TUICC03

Oct 21, 2025, 2:30 PM

30m

Room C (Conference Center )

Invited Oral Presentation WGD:Operations and Commissioning TUICC WGD invited oral

Speaker

Masashi Otani (High Energy Accelerator Research Organization)

Description

The Japan Proton Accelerator Research Complex (J-PARC) linac has been operated with a design peak current of 50 mA since 2018, and several test operations have been performed at a higher peak current of 60 mA. Furthermore, an even higher beam current is being investigated for future projects at J-PARC. To achieve such high beam currents, it is essential to understand beam dynamics and minimize beam loss: minimizing beam extinction when generating intermediate beam pulses for injection into the downstream ring accelerator, and optimizing the lattice to control intra-beam stripping. In this talk, we present recent results from the beam commissioning in the J-PARC linac.