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Title: Point sensitive NMR imaging system using a magnetic field configuration with a spatial minimum

Abstract

A point-sensitive NMR imaging system in which a main solenoid coil produces a relatively strong and substantially uniform magnetic field and a pair of perturbing coils powered by current in the same direction superimposes a pair of relatively weak perturbing fields on the main field to produce a resultant point of minimum field strength at a desired location in a direction along the Z-axis. Two other pairs of perturbing coils superimpose relatively weak field gradients on the main field in directions along the X- and Y-axes to locate the minimum field point at a desired location in a plane normal to the Z-axes. An rf generator irradiates a tissue specimen in the field with radio frequency energy so that desired nuclei in a small volume at the point of minimum field strength will resonate.

Inventors:
OSTI Identifier:
5274349
Application Number:
ON: DE84005919
Assignee:
ERA-09-014919; EDB-84-045538
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; NMR SPECTROMETERS; DESIGN; NUCLEAR MAGNETIC RESONANCE; IMAGE PROCESSING; MAGNET COILS; RF SYSTEMS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; MAGNETIC RESONANCE; MEASURING INSTRUMENTS; PROCESSING; RESONANCE; SPECTROMETERS; 440300* - Miscellaneous Instruments- (-1989)

Citation Formats

Eberhard, P.H. Point sensitive NMR imaging system using a magnetic field configuration with a spatial minimum. United States: N. p., Web.
Eberhard, P.H. Point sensitive NMR imaging system using a magnetic field configuration with a spatial minimum. United States.
Eberhard, P.H. . "Point sensitive NMR imaging system using a magnetic field configuration with a spatial minimum". United States.
@article{osti_5274349,
title = {Point sensitive NMR imaging system using a magnetic field configuration with a spatial minimum},
author = {Eberhard, P.H.},
abstractNote = {A point-sensitive NMR imaging system in which a main solenoid coil produces a relatively strong and substantially uniform magnetic field and a pair of perturbing coils powered by current in the same direction superimposes a pair of relatively weak perturbing fields on the main field to produce a resultant point of minimum field strength at a desired location in a direction along the Z-axis. Two other pairs of perturbing coils superimpose relatively weak field gradients on the main field in directions along the X- and Y-axes to locate the minimum field point at a desired location in a plane normal to the Z-axes. An rf generator irradiates a tissue specimen in the field with radio frequency energy so that desired nuclei in a small volume at the point of minimum field strength will resonate.},
doi = {},
journal = {},
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volume = ,
place = {United States},
year = {},
month = {}
}