Abstract
Novel shaped selective time-domain RF pulses, dubbed “Gaussian pulse cascades” (2) are presented and shown to achieve new standards of frequency-domain selectivity for inversion or in-phase excitation. The response of an isolated spin I = 1/2 system is verified by simulation and experiment. The pulses consist of superpositions of three or four time- shifted Gaussians with optimized widths and peak amplitudes. A modified Simplex optimization algorithm was used to obtain amplitude envelopes having excellent frequency-domain responses from starting pulses which were chosen on the grounds of Fourier transform considerations. The resulting pulses are defined by only 9 or 12 parameters for inversion and excitation respectively.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
L. EMSLEY AND G. BODENHAUSEN, Chem.Phys.Lett. 165, 469 (1990).
L. EMSLEY AND G. BODENHAUSEN, J Magn.Reson. 82, 211 (1989).
L. EMSLEY P. HUBER AND G. BODENHAUSEN, Angew. Chem., in press.
L. EMSLEYAND G. BODENHAUSEN, Chem.Phys.Lett., in press.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1990 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Emsley, L., Huber, P., Di Bari, L., Kowalewski, J., Bodenhausen, G. (1990). Gaussian Pulse Cascades and Selective Two-Dimensional NMR. In: Mehring, M., von Schütz, J.U., Wolf, H.C. (eds) 25th Congress Ampere on Magnetic Resonance and Related Phenomena. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76072-3_233
Download citation
DOI: https://doi.org/10.1007/978-3-642-76072-3_233
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-53136-4
Online ISBN: 978-3-642-76072-3
eBook Packages: Springer Book Archive