Controlling induced radioactivity in CSNS RCS

THFA08
Oct 23, 2025, 2:55 PM
5m
Room A (Conference Center)

Room A

Conference Center

Flash Poster Presentation WGD:Operations and Commissioning THFA WGs flash talks

Speaker

Yuwen An (Institute of High Energy Physics)

Description

Controlling induced radioactivity remains crucial for high-intensity proton accelerators. This study analyzes radiation hotspots in a Rapid Cycling Synchrotron (RCS) using extensive dose measurements (2018-2025). We identified hotspots (>5 mSv/h) exhibiting either transient ("peaking-then-decreasing") or persistent ("increasing-then-stabilizing") behavior. Strategic measures - orbit correction, parameter optimization, and hardware improvements - effectively reduced radiation, exemplified by Kicker01's dose rate dropping from 20 mSv/h. However, persistent hotspots like R1SD03 (~10 mSv/h) require further study of local beam loss mechanisms. These findings advance radiation control strategies for safer, more efficient proton accelerators.

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Author

Yuwen An (Institute of High Energy Physics)

Co-authors

Hanyang Liu (Institute of High Energy Physics) Jianliang Chen (Chinese Academy of Sciences) Ms Meifei Liu (Spallation Neutron Source Science Center) Ming-Yang Huang (Institute of High Energy Physics) Shouyan Xu (Dongguan Neutron Science Center) Yong Li (Dongguan Neutron Science Center) Yue Yuan (Institute of High Energy Physics) Zhiping Li (Dongguan Neutron Science Center)

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