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Title: 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 Laboratory (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 = {Tue Oct 29 00:00:00 EDT 2013},
month = {Tue Oct 29 00:00:00 EDT 2013}
}

Works referenced in this record:

Nuclear magnetic resonance apparatus and methods of use and facilities for incorporating the same
patent, September 2003


Rotating and pivoting magnet for magnetic navigation
patent, June 2011


Least Squares Magnetic-Field Optimization for Portable Nuclear Magnetic Resonance Magnet Design
journal, December 2008


Absolute property measurements using electromagnetic sensors
patent-application, June 2005