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Article
Optimal Control Design of Excitation Pulses That Accommodate Relaxation
Journal of Magnetic Resonance
  • Naum I. Gershenzon, Wright State University - Main Campus
  • Kyryl Kobzar
  • Burkhard Luy
  • Steffen J. Glaser
  • Thomas E. Skinner, Wright State University - Main Campus
Document Type
Article
Publication Date
1-1-2007
Abstract
An optimal control algorithm for mitigating the effects of T1 and T2 relaxation during the application of long pulses is derived. The methodology is applied to obtain broadband excitation that is not only tolerant to RF inhomogeneity typical of high resolution probes, but is relatively insensitive to relaxation effects for T1 and T2 equal to the pulse length. The utility of designing pulses to produce specific phase in the final magnetization is also presented. The results regarding relaxation and optimized phase are quite general, with many potential applications beyond the specific examples presented here.
DOI
10.1016/j.jmr.2007.08.007
Citation Information
Naum I. Gershenzon, Kyryl Kobzar, Burkhard Luy, Steffen J. Glaser, et al.. "Optimal Control Design of Excitation Pulses That Accommodate Relaxation" Journal of Magnetic Resonance Vol. 188 Iss. 2 (2007) p. 330 - 336 ISSN: 1090-7807
Available at: http://works.bepress.com/thomas_skinner/12/