Adjustable permanent magnet assembly for NMR and MRI
Abstract
System and methods for designing and using single-sided magnet assemblies for magnetic resonance imaging (MRI) are disclosed. The single-sided magnet assemblies can include an array of permanent magnets disposed at selected positions. At least one of the permanent magnets can be configured to rotate about an axis of rotation in the range of at least +/-10 degrees and can include a magnetization having a vector component perpendicular to the axis of rotation. The single-sided magnet assemblies can further include a magnet frame that is configured to hold the permanent magnets in place while allowing the at least one of the permanent magnets to rotate about the axis of rotation.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1107631
- Patent Number(s):
- 8570042
- Application Number:
- 12/675,604
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- AC02-05CH11231
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Pines, Alexander, Paulsen, Jeffrey, Bouchard, Louis S, and Blumich, Bernhard. Adjustable permanent magnet assembly for NMR and MRI. United States: N. p., 2013.
Web.
Pines, Alexander, Paulsen, Jeffrey, Bouchard, Louis S, & Blumich, Bernhard. Adjustable permanent magnet assembly for NMR and MRI. United States.
Pines, Alexander, Paulsen, Jeffrey, Bouchard, Louis S, and Blumich, Bernhard. Tue .
"Adjustable permanent magnet assembly for NMR and MRI". United States. https://www.osti.gov/servlets/purl/1107631.
@article{osti_1107631,
title = {Adjustable permanent magnet assembly for NMR and MRI},
author = {Pines, Alexander and Paulsen, Jeffrey and Bouchard, Louis S and Blumich, Bernhard},
abstractNote = {System and methods for designing and using single-sided magnet assemblies for magnetic resonance imaging (MRI) are disclosed. The single-sided magnet assemblies can include an array of permanent magnets disposed at selected positions. At least one of the permanent magnets can be configured to rotate about an axis of rotation in the range of at least +/-10 degrees and can include a magnetization having a vector component perpendicular to the axis of rotation. The single-sided magnet assemblies can further include a magnet frame that is configured to hold the permanent magnets in place while allowing the at least one of the permanent magnets to rotate about the axis of rotation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {10}
}
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Works referenced in this record:
Least Squares Magnetic-Field Optimization for Portable Nuclear Magnetic Resonance Magnet Design
journal, December 2008
- Paulsen, J. L.; Franck, J.; Demas, V.
- IEEE Transactions on Magnetics, Vol. 44, Issue 12