Abstract
Aiming to demonstrate feasibility and practicality of a low cost superconducting MRI magnet system targeted for use in small hospitals, rural communities and underdeveloped countries, MIT-Francis Bitter Magnet Laboratory has developed a 0.6 T/650 mm room temperature bore demonstration coil wound with multifilament MgB2 conductor and cooled via an innovative cryogenic design/operation. The coil is to be maintained cold by solid nitrogen kept in the solid state by a cryocooler. In the event of a power failure the cryocooler is automatically thermally decoupled from the system. In this paper we present details of the MgB2 conductor, winding process, and preliminary theoretical analysis of the current-carrying performance of the conductively cooled coils in zero background field and over the 10-30 K temperature range.
Original language | English |
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Article number | 1643121 |
Pages (from-to) | 1427-1430 |
Number of pages | 4 |
Journal | IEEE Transactions on Applied Superconductivity |
Volume | 16 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2006 Jun |
Bibliographical note
Funding Information:Manuscript received September 20, 2005. This work was supported by the NIH National Institute of Biomedical Imaging and Bioengineering. J. Bascuñán, E. S. Bobrov, S. Hahn, and Y. Iwasa are with MIT Francis Bitter Magnet Laboratory, Cambridge, MA 02139 USA (e-mail: [email protected]; [email protected]; [email protected]; [email protected]). H. Lee is with the Division of Material Science & Engineering, Korea University, Seoul 136-713, Korea (e-mail: [email protected]). M. Tomsic and M. Rindfleisch are with Hyper Tech Research, Inc., Columbus, OH 43212 USA (e-mail: [email protected]; mrindfleisch@ hypertechresearch.com). Digital Object Identifier 10.1109/TASC.2005.864456
Keywords
- Conduction cooled
- MRI
- MgB2
- Solenoids
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering