Method for suppression of acoustic ringing in NMR measurements

Details Method for suppression of acoustic ringing in NMR measurements Method for suppression of acoustic ringing in NMR measurements

1982-01-18

1984-03-20

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3308

Patent

active

044384009

ABSTRACT:
Compensation rather than direct suppression removes the effects of acoustic ringing as encountered in pulsed nuclear magnetic resonance experiments. Single and double spin-echo excitation, combined with several alternative schemes for phase cycling both transmitter and receiver, is one type of compensatory technique. Another technique consists of acquiring free induction decay signals in pairs, with the second preceded by an inversion pulse a short time prior to the normal excitation pulse, and with the second acquisition acquired subtractively, assuring phase coherence of the signals and phase opposition and hence cancellation of the acoustic ringing. Phase cycling of the inversion pulse may also be employed in the latter technique to suppress acoustic ringing stimulated by the inversion pulse.

REFERENCES:
patent: 4297637 (1981-10-01), Crooks
patent: 4339716 (1982-07-01), Young
patent: 4383219 (1983-05-01), Kaplan

Affiliated with

Also associated with

Rating

Method for suppression of acoustic ringing in NMR measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for suppression of acoustic ringing in NMR measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for suppression of acoustic ringing in NMR measurements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1606868