Speaker
Takaaki Yasui
(High Energy Accelerator Research Organization)
Description
The main ring synchrotron (MR) of the Japan Proton Accelerator Research Complex (J-PARC) provides high power proton beams to neutrino and hadron experiments. Since we are planning to increase the beam intensity from current $2.3 \times 10^{14}~$protons per pulse (ppp) to $3.3 \times 10^{14}~$ppp, we need to reduce the beam loss. In the J-PARC MR, the space charge is one of the main causes of beam loss. As a first step, we developed a new beam optics suppressing the space-charge-induced resonance which is the primary cause of the beam loss. In this paper, we report details of the beam loss mechanism in J-PARC MR by comparing the tune scan results of the present and new beam optics.
Region represented | Asia |
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Paper preparation format | LaTeX |
Author
Takaaki Yasui
(High Energy Accelerator Research Organization)
Co-authors
Hideaki Hotchi
(High Energy Accelerator Research Organization)
Susumu Igarashi
(High Energy Accelerator Research Organization)
Yoichi Sato
(Japan Proton Accelerator Research Complex)