TY - JOUR
T1 - Fast Broadband Inversion by Adiabatic Pulses
AU - Hwang, Tsang Lin
AU - Van Zijl, Peter C.M.
AU - Garwood, Michael
N1 - 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.
PY - 1998/7
Y1 - 1998/7
N2 - 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.
AB - 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.
KW - Adiabatic pulses
KW - Fast broadband inversion
KW - Tangential frequency sweep
UR - http://www.scopus.com/inward/record.url?scp=0032113626&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032113626&partnerID=8YFLogxK
U2 - 10.1006/jmre.1998.1441
DO - 10.1006/jmre.1998.1441
M3 - Editorial
C2 - 9654487
AN - SCOPUS:0032113626
SN - 1090-7807
VL - 133
SP - 200
EP - 203
JO - Journal of Magnetic Resonance
JF - Journal of Magnetic Resonance
IS - 1
ER -