A Method to Improve the Field Quality of the Curved Canted-Cosine-Theta Dipole

A proton therapy equipment named SC200 is developing in the Institute of Plasma Physics Chinese Academy of Sciences (IPP, CAS) and Hefei CAS Ion Medical and Technical Devices Co., Ltd. In order to develop a light weight gantry for proton therapy, the Canted Cosine theta (CCT) superconducting magnet...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2023-11, Vol.33 (8), p.1-6
Main Authors: Wei, Shaoqing, Huang, Xingmeng, Li, Jiaxin, Zhang, Zhan, Liu, Fang, Liu, Huajun, Zheng, Jinxing, Song, Yuntao
Format: Article
Language:English
Subjects:
Bend radius
Bending
curved CCT dipole
Dipoles
Filing
Harmonic analysis
harmonic components
Higher harmonics
Magnetomechanical effects
Optimization
Plasma physics
Power cables
proton therapy gantry
Protons
Radiation therapy
Superconducting magnet
Superconducting magnets
Superconductivity
Symmetry
Toroidal magnetic fields
Windings
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A proton therapy equipment named SC200 is developing in the Institute of Plasma Physics Chinese Academy of Sciences (IPP, CAS) and Hefei CAS Ion Medical and Technical Devices Co., Ltd. In order to develop a light weight gantry for proton therapy, the Canted Cosine theta (CCT) superconducting magnet was considered to apply in the superconducting gantry development. In this study, the magnetic field, and harmonic components of the curved CCT dipole were analyzed. As the curved CCT coil is no longer symmetric, there exist great high order harmonics. An optimization method to improve the field quality of the curved CCT dipole was presented. A symmetry curved CCT dipole, which was called S-curved CCT dipole, was approached in this study. With the S-curved CCT, all the integral high order harmonics can reach the requirement of 10 -4 . The design of the curved CCT dipole magnet with 2.67 T dipole field and 870 mm bending radius was introduced and analyzed in this study.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2023.3309631