Scheduled System Maintenance on December 17th, 2014:
IEEE Xplore will be upgraded between 2:00 and 5:00 PM EST (18:00 - 21:00) UTC. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Uniformity Aspects of Superconducting MRI Magnet Developed by IHEP

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

8 Author(s)
Weichao Yao ; Inst. of High Energy Phys., Beijing, China ; Zi'an Zhu ; Ling Zhao ; Meifen Wang
more authors

A 1.5-T whole-body magnetic resonance imaging (MRI) magnet was designed and manufactured at the Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China. The designed field inhomogeneity is less than 50 parts per million peak-to-peak in a sphere with a diameter of 50 cm. Unfortunately, during the process, there are many different manufacturing errors that can generate field inhomogeneity. In this paper, the different manufacturing errors have been discussed, through the accurate calculation of the magnet, and we shall focus on the position offset while manufacturing. In addition, there are several methods that can be used in this situation, and the principle of each of these methods will be given. Finally, comparing with the measured data, the main reasons that lead to inhomogeneity were given in the MRI magnet.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:24 ,  Issue: 1 )