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Title: Passively shimmed principal detector elements for toroid cavity detector NMR probes

Abstract

A novel NMR principal detector element of the present invention comprises a NMR-active inductor in a radio frequency (RF) resonance circuit, and mitigates the distortions in a static magnetic field caused by the introduction of a toroid cavity NMR detector. The RF resonance circuit includes a novel principal detector element, capacitor elements, and a sample chamber (the cavity). The novel principal detector element defines the NMR active portion of the inductance of the electronic resonance circuit. In one embodiment of the invention, the novel principal detector element includes two hemispheres connected by a central rod. The central rod can be of any length and diameter, and the hemispheres can be of any diameter. A typical embodiment of the invention would include a rod that is 2 cm long having a diameter of 1 mm, and hemispheres having a diameter of 5 mm.

Inventors:
;
Publication Date:
Research Org.:
The Univ. of Chicago, Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531481
Patent Number(s):
6,788,064
Application Number:
10/386,847
Assignee:
The University of Chicago (Chicago, IL)
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2003-03-12
Country of Publication:
United States
Language:
English

Citation Formats

Gerald, II, Rex E., and Rathke, Jerome W. Passively shimmed principal detector elements for toroid cavity detector NMR probes. United States: N. p., 2004. Web.
Gerald, II, Rex E., & Rathke, Jerome W. Passively shimmed principal detector elements for toroid cavity detector NMR probes. United States.
Gerald, II, Rex E., and Rathke, Jerome W. Tue . "Passively shimmed principal detector elements for toroid cavity detector NMR probes". United States. https://www.osti.gov/servlets/purl/1531481.
@article{osti_1531481,
title = {Passively shimmed principal detector elements for toroid cavity detector NMR probes},
author = {Gerald, II, Rex E. and Rathke, Jerome W.},
abstractNote = {A novel NMR principal detector element of the present invention comprises a NMR-active inductor in a radio frequency (RF) resonance circuit, and mitigates the distortions in a static magnetic field caused by the introduction of a toroid cavity NMR detector. The RF resonance circuit includes a novel principal detector element, capacitor elements, and a sample chamber (the cavity). The novel principal detector element defines the NMR active portion of the inductance of the electronic resonance circuit. In one embodiment of the invention, the novel principal detector element includes two hemispheres connected by a central rod. The central rod can be of any length and diameter, and the hemispheres can be of any diameter. A typical embodiment of the invention would include a rod that is 2 cm long having a diameter of 1 mm, and hemispheres having a diameter of 5 mm.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {9}
}

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Works referenced in this record:

Device and method for the endovascular treatment of aneurysms
patent, October 2002


Flat metal conductor principal detector element for NMR analysis of a sample
patent, October 2002


Method and apparatus for probe localization in brain matter
patent, May 2003


Near-electrode imager
patent, April 2000


Nuclear magnetic resonance detector used for reducing probe ringing
patent, February 2001


Nuclear resonance tomography with a toroid cavity detector
patent, November 1996


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