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Improvement of the Uniformity of the RF Field Generated by the Helical Surface Coil of a Nuclear-Quadrupole-Resonance Spectrometer

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Abstract

A simple and rather efficient method is proposed for improving the uniformity of the RF field generated by a surface helical coil with nonlinearly distributed turns. An optimal law of the distribution of the turns of a helical coil is suggested. The results of a computer simulation of the field produced by this coil are presented and compared with the data for a conventionally used coil in the form of a linear spiral. The coils were tested during detection of nuclear quadrupole resonance signals on 14N nuclei in a (CH2)6N4polycrystal and demonstrated the efficiency of the technique proposed for improving the field uniformity.

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Authors and Affiliations

  1. Kaliningrad University, ul. A. Nevskogo 14, Kaliningrad, 236041, Russia

    T. N. Rudakov, V. T. Mikhal'tsevich, V. V. Fedotov & A. V. Belyakov

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  1. T. N. Rudakov
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  2. V. T. Mikhal'tsevich
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  3. V. V. Fedotov
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  4. A. V. Belyakov
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Rudakov, T.N., Mikhal'tsevich, V.T., Fedotov, V.V. et al. Improvement of the Uniformity of the RF Field Generated by the Helical Surface Coil of a Nuclear-Quadrupole-Resonance Spectrometer. Instruments and Experimental Techniques 44, 81–83 (2001). https://doi.org/10.1023/A:1004137101733

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