Cart (Loading....) | Create Account
Close category search window
 

Structural design and analysis of a cryogen-free open superconducting magnet for interventional MRI applications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Minas, C. ; Corp. Res. & Dev., Gen. Electr. Co., Schenectady, NY, USA ; Laskaris, E.T.

The structural design and analysis of a cryogen-free open superconducting magnet for interventional MRI applications is presented. The magnet assembly consisted of two identical halves connected together by four posts. The magnet separation allows a surgeon access to the patient within the field-of-view of the imaging system. Each half of the assembly consisted of three superconducting coils, a stainless steel bobbin, a copper thermal ring, and three overwrap rings. The suspension components of the magnet consisted of eight radial straps and eight axial rods. A structural analysis was carried out that considered the differential thermal contraction caused by the cooldown to the magnet cryogenic operating temperature, and the electromagnetic forces on the coils when the magnet is energized at the design current value. The results are compared to the equivalent stresses caused by a simulation of a quench that was initiated at the inner diameter of one of the superconducting coils. The post-quench thermal transient analysis predicted a nonuniform 3-D temperature field in the range of 10 to 178 K and asymmetric electromagnetic forces on the superconducting coils. The three dimensional structural model of the assembly was developed in ANSYS.<>

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:5 ,  Issue: 2 )

Date of Publication:

June 1995

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.