1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Key issues in the high intensity beam commissioning for the CSNS RCS

TUPS057
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC4.A14 Neutron Spallation Facilities Tuesday Poster Session

Speaker

Ming-Yang Huang (Institute of High Energy Physics)

Description

For the China Spallation Neutron Source (CSNS), the rapid cycling synchrotron (RCS) accumulates and accelerates the injection beam to the design energy of 1.6 GeV and then extracts the high energy beam to the target. The CSNS design beam power is 100 kW, with the capability to upgrade to 500 kW. By February 2020, the beam power had reached 100 kW, and through improvements, the beam power was increased to 170 kW. During the beam commissioning process, the beam loss caused by space charge effects was the most significant factor limiting the increase in beam power. Additionally, unexpected collective effects were observed, including coherent oscillations, when the beam power higher than 50 kW. Through a series of improvements, the space charge effects and collective instabilities causing beam loss were effectively controlled. In this paper, the key beam issues during the beam commissioning for the CSNS RCS will be studied in detail and their suppression methods will be given.

Funding Agency

This work is jointly supported by the National Natural Science Foundation of China (No. 12075134) and the Guangdong Basic and Applied Basic Research Foundation (No. 2021B1515120021).

Region represented Asia
Paper preparation format Word

Author

Ming-Yang Huang (Institute of High Energy Physics)

Co-authors

Xiaohan Lu (Institute of High Energy Physics) Liangsheng Huang (Institute of High Energy Physics) Hanyang Liu (Institute of High Energy Physics) Shouyan Xu (Dongguan Neutron Science Center) Yong Li (Dongguan Neutron Science Center) Yuwen An (Institute of High Energy Physics) Jianliang Chen (Chinese Academy of Sciences) Kai Zhou (Institute of High Energy Physics) Jun Peng (Institute of High Energy Physics) Zhiping Li (Dongguan Neutron Science Center) Yanliang Han (Institute of High Energy Physics) Yaoshuo Yuan (Chinese Academy of Sciences) Huachang Liu (Dongguan Neutron Science Center) Xiao Li (Institute of High Energy Physics) Yuliang Zhang (Chinese Academy of Sciences) Xin Qi (Chinese Academy of Sciences) Sheng Wang (Institute of High Energy Physics, CAS)

Presentation materials

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