SORDOR Pulses: Expansion of the Böhlen-Bodenhausen Scheme for Low-power Broadband Magnetic Resonance

Overview

Journal Magn Reson (Gott)

Date 2023 Oct 31

PMID 37905174

Authors

Jens D Haller

David L Goodwin

Burkhard Luy

Affiliations

Soon will be listed here.

Abstract

A novel type of efficient broadband pulse, called second-order phase dispersion by optimised rotation (SORDOR), has recently been introduced. In contrast to adiabatic excitation, SORDOR-90 pulses provide effective transverse 90 rotations throughout their bandwidth, with a quadratic offset dependence of the phase in the plane. Together with phase-matched SORDOR-180 pulses, this enables the Böhlen-Bodenhausen broadband refocusing approach for linearly frequency-swept pulses to be extended to any type of 90/180 pulse-delay sequence. Example pulse shapes are characterised in theory and experiment, and an example application is given with a -PROJECT experiment for measuring relaxation times with reduced distortions due to -coupling evolution.

Citing Articles

Band-selective universal 90° and 180° rotation pulses covering the aliphatic carbon chemical shift range for triple resonance experiments on 1.2 GHz spectrometers.

Slad S, Bermel W, Kummerle R, Mathieu D, Luy B J Biomol NMR. 2022; 76(5-6):185-195.

PMID: 36418752 PMC: 9712393. DOI: 10.1007/s10858-022-00404-1.

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