A superconducting magnet system for whole-body metabolism imaging

Wang, Q., Dai, Y., Zhao, B., Song, S., Wang, C., Li, L., Cheng, J., Chen, S., Wang, H., Ni, Z., Li, Y., Cui, C., Hu, X., Wang, H., Lei, Y., Chan, K., Yan, L., Wen, C., Hui, G., Yang, W., Liu, F., Zhuo, Y., Zhou, X., Yan, Z., Chen, J. and Xu, T. (2012) A superconducting magnet system for whole-body metabolism imaging. Ieee Transactions On Applied Superconductivity, 22 3: 6080713-1-6080713-5. doi:10.1109/TASC.2011.2175888

Author Wang, Q.
Dai, Y.
Zhao, B.
Song, S.
Wang, C.
Li, L.
Cheng, J.
Chen, S.
Wang, H.
Ni, Z.
Li, Y.
Cui, C.
Hu, X.
Wang, H.
Lei, Y.
Chan, K.
Yan, L.
Wen, C.
Hui, G.
Yang, W.
Liu, F.
Zhuo, Y.
Zhou, X.
Yan, Z.
Chen, J.
Xu, T.
Title A superconducting magnet system for whole-body metabolism imaging
Journal name Ieee Transactions On Applied Superconductivity   Check publisher's open access policy
ISSN 1051-8223
Publication date 2012-06
Sub-type Article (original research)
DOI 10.1109/TASC.2011.2175888
Volume 22
Issue 3
Start page 6080713-1
End page 6080713-5
Total pages 5
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Collection year 2013
Language eng
Abstract A 9.4 Tesla superconducting magnet is designed and fabricated with a warm bore of 800 mm for neuroscience research. The superconducting magnet will be made of a NbTi Wire-in-Channel (WIC) conductor with a higher ratio of copper to non-copper, which thus sustains the high stresses. It is cooled to operate temperature at 4.2 K liquid helium. The cryostat system is cooled through GM cryocoolers, some used to cool the radiation shield, and the others realize the re-condensed liquid helium. The MRI magnet system has a high level of stored energy, about 134 MJ, and a relatively-lower nominal current, about 212.5 A. The magnet will be operated in a persistent current mode with a superconducting switch. The WIC wires are employed to meet the cryostability criteria to avoid any risks from quench. The protection circuit with the subdivision of the coil reduces the terminate voltage and hot-spot temperature. In the paper, the specifications of magnet system will be presented.
Keyword Metabolism imaging
MRI superconducting magnet
Passive shield
Sub-division quench protection
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number6080713

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Information Technology and Electrical Engineering Publications
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