TY - JOUR
T1 - Open MRI magnet with iron rings correcting the Lorentz force and field quality
AU - Wang, Qiuliang
AU - Wang, Hui
AU - Zheng, Jie
AU - Dai, Yinming
AU - Zhu, Xuchen
AU - He, Qun
AU - Cheng, Junsheng
AU - Chen, Shunzhong
AU - Song, Shousen
AU - Zhao, Baozhi
AU - Cui, Chunyan
AU - Li, Yi
AU - Wang, Housheng
AU - Li, Lankai
AU - Ni, Zhipeng
AU - Feng, Zhongkui
AU - Yan, Luguang
AU - Xu, Jianyi
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2014
Y1 - 2014
N2 - A magnetic resonance imaging (MRI) superconducting magnet with openness can reduce claustrophobia of a patient. To fabricate an open MRI magnet, a new magnet configuration with iron rings and pole plates balancing the force between the coil and the yoke, and correcting the field homogeneity has been proposed. An MRI magnet with the center field of 0.7 T generated by split-pair coils and yokes is fabricated. The coils are contained in the cryostat with separated vessels connected with two pipes. The coils are separated with a room temperature gap of 480 mm and the diameter spherical volume (DSV) of 300 mm in which the homogeneity is 3 ppm in peak-To-peak. The cryogenic system is cooled by one GM cryo-cooler to realize the zero boiling off liquid helium. In the paper, the detailed design, fabrication, and test will be reported.
AB - A magnetic resonance imaging (MRI) superconducting magnet with openness can reduce claustrophobia of a patient. To fabricate an open MRI magnet, a new magnet configuration with iron rings and pole plates balancing the force between the coil and the yoke, and correcting the field homogeneity has been proposed. An MRI magnet with the center field of 0.7 T generated by split-pair coils and yokes is fabricated. The coils are contained in the cryostat with separated vessels connected with two pipes. The coils are separated with a room temperature gap of 480 mm and the diameter spherical volume (DSV) of 300 mm in which the homogeneity is 3 ppm in peak-To-peak. The cryogenic system is cooled by one GM cryo-cooler to realize the zero boiling off liquid helium. In the paper, the detailed design, fabrication, and test will be reported.
KW - Iron-rings balancing Lorentz force
KW - Open magnetic resonance imaging (MRI)
KW - Superconducting magnet
KW - Zero boiling off liquid helium
UR - https://www.scopus.com/pages/publications/84990935780
U2 - 10.1109/TASC.2013.2290587
DO - 10.1109/TASC.2013.2290587
M3 - 文章
AN - SCOPUS:84990935780
SN - 1051-8223
VL - 24
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 3
M1 - 6665128
ER -