DocumentCode
975298
Title
A 500 MHz/200 mm RT Bore Solid Neon Cooled 
MRI Magnet—A Status Report
Author
Bascuñán, Juan ; Lee, Haigun ; Bobrov, Emanuel S. ; Hahn, Seungyong ; Iwasa, Yukikazu
Author_Institution
Francis Bitter Nat. Magnet Lab., MIT, Cambridge, MA
Volume
16
Issue
2
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
1535
Lastpage
1538
Abstract
We report here on the status of our program aimed to build and operate a dry MRI magnet. The system incorporates a new design/operational concept that we believe it will be eventually adopted by manufacturers of the next generation of superconducting magnets. System features include: a) liquid free; b) if required by the user, cryocooler microphonics free over a period of time; c) ability to maintain a constant operating field over a specified period of time, even in the event of a power outage or during cryocooler maintenance. The basis of this new design/operation concept, among other features, is the presence of solid cryogen, solid neon for this system, in the cold body that also contains the magnet to enhance significantly the cold body´s heat capacity. Details of the system design-magnetic and cryogenics are presented in this paper
Keywords
cryogenics; design engineering; magnetic resonance imaging; maintenance engineering; niobium alloys; specific heat; superconducting magnets; tin alloys; 200 mm; 500 MHz; Nb3Sn; RT bore solid neon cooled MRI magnet; cryocooler maintenance; cryocooler microphonics; cryogenics; design/operational concept; heat capacity; solid cryogen; superconducting magnets; Boring; Cryogenics; Helium; Magnetic resonance imaging; Magnetic shielding; Manufacturing; Solids; Superconducting magnets; Temperature; Tin; Dry magnet; MRI; solenoid; solid cryogen;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2005.864453
Filename
1643147
Link To Document