Correction for the Effect of Induced B0
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S. Crozier; F.A. Beckey; C.D. Eccles; J. Field; D.M. Doddrell
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Article
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1994
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Elsevier Science
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English
โ 379 KB
A new method is presented for the amelioration of eddy-current-induced \(B_{0}\) shifts based on direct FM modulation of the spectrometer transmitter and receiver reference frequencies. The waveform for correction is based on a dynamic spherical-harmonic expansion of the temporal field, requiring no