Newly designed 3 T MRI magnet wound with Bi-2223 tape conductors

Terao, Yasuaki, Ozaki, Osamu, Ichihara, Chikara, Kawashima, Shinya, Hase, Takashi, Kitaguchi, Hitoshi, Kobayashi, Shin-ichi, Sato, Ken-ichi, Nakajima, Iwao, Oonishi, Naoki, Poole, Michael, Takeda, Kazuyuki, Urayama, Shin-ichi and Fukuyama, Hidenao (2013) Newly designed 3 T MRI magnet wound with Bi-2223 tape conductors. IEEE Transactions on Applied Superconductivity, 23 3: 4400904.1-4400904. 4. doi:10.1109/TASC.2013.2239342


Author Terao, Yasuaki
Ozaki, Osamu
Ichihara, Chikara
Kawashima, Shinya
Hase, Takashi
Kitaguchi, Hitoshi
Kobayashi, Shin-ichi
Sato, Ken-ichi
Nakajima, Iwao
Oonishi, Naoki
Poole, Michael
Takeda, Kazuyuki
Urayama, Shin-ichi
Fukuyama, Hidenao
Title Newly designed 3 T MRI magnet wound with Bi-2223 tape conductors
Journal name IEEE Transactions on Applied Superconductivity   Check publisher's open access policy
ISSN 1051-8223
1558-2515
Publication date 2013-01-01
Sub-type Article (original research)
DOI 10.1109/TASC.2013.2239342
Open Access Status Not yet assessed
Volume 23
Issue 3
Start page 4400904.1
End page 4400904. 4
Total pages 4
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Language eng
Subject 2504 Electronic, Optical and Magnetic Materials
3104 Condensed Matter Physics
2208 Electrical and Electronic Engineering
Abstract We have designed and fabricated a 3T magnetic resonance imaging magnet system for the human brain, which was wound with Bi-2223 tape conductors. Cooled by a Gifford-McMahon cryocooler, it was operated at 20 K with a stored energy of 2.3 MJ. A magnetic-field homogeneity of 5 ppm was attained at 1.5 T, which was our target value. Using this Bi-2223 high-temperature superconducting magnet, we obtained magnetic resonance images in 1.5 T at 8.5 K. The system was successfully magnetized to 3 T, which is the final target field in our project. This work demonstrates the potential of the high-temperature superconducting magnet for use in human magnetic resonance imaging experiments.
Keyword Bi-2223
Cryocooler
Imaging
Magnetic resonance imaging (MRI)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Information Technology and Electrical Engineering Publications
 
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