Simulation of Multipulse Tune-up Sequences

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A general-purpose method for the simulation of a spin- 1 2 response to a multipulse train is presented. This is used to calculate the results of tune-up sequences often used in spectrometer calibration and characterization. The method is capable of including effects arising from RF and magnetic field inhomogeneities, finite amplitude and duration of pulses, and spin relaxation for T1 = T2. The pulses may also be of arbitrary shape in amplitude and phase, allowing for the inclusion of phase glitch and finite rise-time effects. Results are presented for the usual tune-up sequences and in particular for the Haubenreisser-Schnabel sequence for tuning the transmitter phase. The effects of symmetric and asymmetric phase glitch, field inhomogeneities, etc., are illustrated by Fourier transforming the data array. This procedure produces an antiphase doublet with a splitting proportional to the transmitter phase. The accuracy of this technique in measuring small-angle phase shifts is discussed.

Original languageEnglish (US)
Pages (from-to)188-194
Number of pages7
JournalJournal of Magnetic Resonance, Series A
Volume106
Issue number2
DOIs
StatePublished - Feb 1994
Externally publishedYes

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Transmitters
transmitters
inhomogeneity
Phase shift
Spectrometers
simulation
Tuning
Calibration
Magnetic Fields
Magnetic fields
pulses
phase shift
tuning
inclusions
spectrometers
magnetic fields

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Simulation of Multipulse Tune-up Sequences. / Barbara, Thomas.

In: Journal of Magnetic Resonance, Series A, Vol. 106, No. 2, 02.1994, p. 188-194.

Research output: Contribution to journalArticle

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