A Passive Quench Protection Design for the 9.4 T MRI Superconducting Magnet

Author

Yi Li ; Shunzhong Chen ; Yinming Dai ; Yuanzhong Lei ; Shousen Song ; Zhipeng Ni ; Xinning Hu ; Luguang Yan

Author_Institution

Inst. of Electr. Eng., Beijing, China

Volume

24

Issue

3

fYear

2014

fDate

Jun-14

Firstpage

1

Lastpage

5

Abstract

A passive quench protection design of the 9.4 T whole-body magnetic resonance imaging superconducting magnet is proposed. The design of the coil subdivision with shunt resistors is introduced. The selection of the configuration of the heater network is detailed. The optimization of the geometric parameter of the heater strips and the thickness of the insulation binding outside the heater strips are discussed. A winding sequence that could accelerate the quench propagation in the compensating coil is proposed. The calculation results show that the optimized quench protection design can guarantee the safety of the magnet in the case of any coil as the quench initiation coil.

Keywords

coils; design; magnetic resonance imaging; optimisation; resistors; superconducting magnets; MRI superconducting magnet; heater strips; magnetic resonance imaging superconducting magnet; optimization; passive quench protection design; quench initiation coil; quench propagation; shunt resistors; Coils; Heating; Magnetic resonance imaging; Magnetomechanical effects; Resistors; Strips; Superconducting magnets; Magnetic resonance imaging (MRI) superconducting magnet; quench protection; quench simulation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2013.2283812

Filename

6613511