NMR signal

NMR signal

A term defined in MRI as the electromagnetic signal in the radio-frequency range produced by the precession (gyrations) of the transverse magnetisation of the spins, the rotation of which induces voltage in a receiving antenna (coil) which is amplified and demodulated by the receiver circuits.
References in periodicals archive ?
Could the composite glycosylated proteins represented by the GlycA NMR signal directly modify HDL function in a manner that influences CVD risk?
For detection protons which give the strongest NMR signal in nature, the ultrafast sample spinning rate is the key factor for narrowing of spectral lines and achieving high spectral resolution.
Because it operates at the low-energy end of the electromagnetic spectrum, the population difference between energy levels involved in NMR transitions is exceedingly small - only a few spins per million effectively generate the NMR signal.
Using proprietary software customized for use with NMR technology, the amplitude or "volume" of the NMR signal is directly proportional to the concentration of the particle subclass of lipoprotein particles emitting the signal.
The superconducting channel described here for NMR signal detection has been designed to be compliant with a MEG system.
13]C NMR signal intensity in the aryl and O-aryl regions of the acquired spectra were used to estimate the proportion of OC present in the fractions that should be allocated to the ROC fraction.
Swelling of the coating upon water ingress was estimated by measurement of film length and by an increase in NMR signal intensity as water molecules occupied more free volume.
Dilute, hyperpolarized xenon gas, which produces a strong NMR signal, is dissolved within a sample of the analytical fluid placed at the device input.
79 A (Newham and de Haan, 1962); as the result of which, a distinct NMR signal is expected because of these Al-O distances.
Percentage of total NMR signal assigned to each carbon-type Determined from spectra acquired on 200 MHz spectrometer (200) and 400 MHz spectrometer (400) Sample Carboxyl Aryl O-alkyl Alkyl 200 400 200 400 200 400 200 400 1 8.
3]He will produce a large NMR signal so a precise relative determination of d[P.
Moreover, the NMR signal indicating an organosilicon compound is weak, he says.