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ИСТИНА ЦЭМИ РАН |
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This peport presents a method for optimizing the parameters of the scanning pulse sequences for MRI in relation to objects with a wide spectrum of NMR. The method is especially urgent for 19F NMR spectra of fluorocarbons which are characterized by large chemical shifts and constants of the spin-spin interaction. In this case, a broadband excitation of the spin system is difficult because of hardware limitations.