Apparatus and method for enhanced multiple coil nuclear magnetic

Details Apparatus and method for enhanced multiple coil nuclear magnetic Apparatus and method for enhanced multiple coil nuclear magnetic

1989-12-05

1990-08-07

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01R 3320

Patent

active

049471210

ABSTRACT:
A nuclear magnetic resonance (NMR) signal acquisition apparatus includes a cylindrical array of overlapping coils. Coupling of currents between coils due to re-radiation of received signals, in particular noise currents, is reduced by presenting a high impedance to each coil, thereby reducing the current circulating in each coil. A PREDAMP circuit is disclosed which utilizes the input impedance of a preamplifier, transformed through a quarter-wavelength transmission line segment, to achieve the high input impedance for the coil. As a result, multiple images, each with a high signal-to-noise ratio (SNR), can be simultaneoulsy obtained. A method is disclosed for combining the multiple images into a composite image with optimum SNR, taking into account the phase shifts between images resulting from the spatial orientation of the coils.

REFERENCES:
patent: 4165479 (1979-08-01), Mansfield

Affiliated with

Also associated with

Rating

Apparatus and method for enhanced multiple coil nuclear magnetic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for enhanced multiple coil nuclear magnetic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for enhanced multiple coil nuclear magnetic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-962686