title: Fast broadband inversion by adiabatic pulses.
abstract: Despite the advantages of compensation for resonance offset and B1 inhomogeneity, adiabatic pulses are not yet in general use in high-resolution NMR, often because of the conception that these pulses require longer time or increased power to perform. We show that adiabatic pulses with tangential frequency sweeps and other frequency-modulation functions can be optimized to accomplish 13C and 1H broadband inversion using pulse lengths of 192 and 64 micro(s), respectively, at B1 strengths available with modern high-resolution probes.
authors.affiliation: Department of Radiology and Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 217 Traylor Building, Baltimore, Maryland, 21205, USA.
authors.forename: T L
authors.initials: TL
authors.lastname: Hwang
authors.forename: P C
authors.initials: PC
authors.lastname: van Zijl
authors.forename: M
authors.initials: M
authors.lastname: Garwood
mesh_terms: D000465:Algorithms; D002247:Carbon Isotopes; D004578:Electron Spin Resonance Spectroscopy; D006859:Hydrogen; D007089:Image Enhancement / Q000379:methods; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D012399:Rotation
chemical_list: D002247:Carbon Isotopes; D006859:Hydrogen