A 0.6 T/650 mm RT bore solid nitrogen cooled MgB2 demonstration coil for MRI - A status report

Juan Bascuñán, Haigunan Lee, Emmanuel S. Bobrov, Seungyong Hahn, Yukikazu Iwasa, Mike Tomsic, Matt Rindfleisch

Research output: Contribution to journalArticle

39 Citations (Scopus)

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 languageEnglish
Article number1643121
Pages (from-to)1427-1430
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume16
Issue number2
DOIs
Publication statusPublished - 2006 Jun

Keywords

  • Conduction cooled
  • MRI
  • MgB2
  • Solenoids

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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