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

The mass production magnetic field measurement of the large aperture quadrupoles in HIAF

MOPM098
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC1.A04 Circular Accelerators and Storage Rings Monday Poster Session

Speaker

jing yang (Institute of Modern Physics, Chinese Academy of Sciences)

Description

Currently the HIAF Project at IMP has reached the construction phase. The BRing is one of the key systems of HIAF, which is used to capture, accumulate, accelerate and extract the heavy ion beam injected by iLinac. The quadrupole magnets in BRing have large aperture (Ф260&Ф180) , large axial length(the total length of the magnet is reached 1140mm) and high integration field uniformity (±3×10-4). To measurement the magnetic field quality is very critical. The measurement aims to reach a reproducibility of 1.5×10-4 for the field integral, 2 ppm for the harmonic content for the main field and 0.2mm for the position of the magnetic center. A specially developed probe allows the simultaneous measurement of the field axis and quality. This thesis demonstrates that the system as it stands fulfils the high requirements with respect to the magnetic measurement and the magnetic center and thus provides the desired unique versatile equipment. The assessment was performed based on experimental results, direct calibration. The main defects treated are mechanical torsion and vibration of moving parts, electrical noise and power supply ripple.

Region represented Asia
Paper preparation format Word

Author

jing yang (Institute of Modern Physics, Chinese Academy of Sciences)

Co-authors

Qinggao Yao (Institute of Modern Physics, Chinese Academy of Sciences) Shaofei Han (Institute of Modern Physics, Chinese Academy of Sciences) Xiang Zhang (Institute of Modern Physics, Chinese Academy of Sciences)

Presentation materials

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