Fast Broadband Inversion by Adiabatic Pulses

Tsang Lin Hwang, Peter C.M. Van Zijl, Michael Garwood

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108 Scopus citations


Despite the advantages of compensation for resonance offset and B 1 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 13 C and 1 H broadband inversion using pulse lengths of 192 and 64 μs, respectively, at B 1 strengths available with modern high-resolution probes.

Original languageEnglish (US)
Pages (from-to)200-203
Number of pages4
JournalJournal of Magnetic Resonance
Issue number1
StatePublished - Jul 1998

Bibliographical note

Funding Information:
This research was supported by NIH Grants RR11115 (PvZ) and RR08079 (MG), and, in part, via a subcontract of NIH STTR Grant GM55441 to Adiabatics, Inc., of which M.G. and P.v.Z. are officers. The terms of this agreement have been reviewed and approved by the Johns Hopkins University in accordance with its conflict of interest policies.


  • Adiabatic pulses
  • Fast broadband inversion
  • Tangential frequency sweep


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