High Magnetic Field Superconducting Magnet for 400 MHz Nuclear Magnetic Resonance Spectrometer

A superconducting magnet with the center field of 9.4 T is designed and fabricated for 400 MHz Nuclear Magnetic Resonance. Superconducting coil with NbTi/Cu superconducting wire is employed and cooled by re-condensed liquid helium and the magnet system with the clear-bore of 54 mm. The pulsed tube r...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2011-06, Vol.21 (3), p.2072-2075
Main Authors: Wang, Qiuliang, Zhao, Baozhi, Song, Shousen, Cheng, Junsheng, Li, Yi, Lei, Yuanzhong, Dai, Yinming, Chen, Shunzhong, Wang, Hui, Wang, Housheng, Hu, Xinning, Cui, Chunyan, Liu, Haoyang, Dong, Zengren, Wang, Chunzhong, Ni, Zhipeng, Huang, Houcheng, Zhang, Hongjie, Yan, Luguang, Wang, Jianghua
Format: Article
Language:English
Subjects:
Applied sciences
Coils
Electrical engineering. Electrical power engineering
Electromagnetic compatibility
Electromagnets
Electronics
Exact sciences and technology
Information, signal and communications theory
Magnetic noise
Magnetic shielding
Magnetomechanical effects
Materials
Nuclear magnetic resonance
PTR cryocooler
re-condensed liquid helium
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
separated rotary valve
Superconducting devices
Superconducting magnets
Telecommunications and information theory
Various equipment and components
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Description
Summary:A superconducting magnet with the center field of 9.4 T is designed and fabricated for 400 MHz Nuclear Magnetic Resonance. Superconducting coil with NbTi/Cu superconducting wire is employed and cooled by re-condensed liquid helium and the magnet system with the clear-bore of 54 mm. The pulsed tube refrigerator with separated valve is employed to cool the magnet system. The superconducting magnet has an active shield with high pure copper shield to protect during quench of the shielding coil. The paper reports the electromagnetic design, and fabrication is detailed.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2010.2090854