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The Superconducting Magnetic System of a 400-MHz Nuclear Magnetic Resonance Spectrometer

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Abstract—

A superconducting magnetic system with a magnetic field induction of 9.5 T for a 400-MHz high-resolution NMR spectrometer has been developed and tested. It can produce a magnetic field with an induction of 9.5 T with high uniformity and stability in a solenoid made of a superconducting NT-50 alloy wire with a working hole ≥80 mm in diameter. By using superconducting windings to compensate for the axial and radial gradients of the magnetic field in the solenoid, it is possible to improve the field uniformity from 2 × 10–5 to 5 × 10–8 rel. units inside an ampoule with a diameter of 5 mm and a height of 10 mm. A high stability of approximately 10–8 rel. units/h is attained for a magnetic field in the “frozen” mode when the solenoid current is by 6–8% less than the critical value.

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REFERENCES

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Authors and Affiliations

  1. Donetsk Institute for Physics and Engineering, 83114, Donetsk, Ukraine

    N. V. Taryanik, D. V. Varyukhin & D. O. Fedyuk

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  1. N. V. Taryanik
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  2. D. V. Varyukhin
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  3. D. O. Fedyuk
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Correspondence to D. O. Fedyuk.

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The authors declare that they have no conflicts of interest.

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Translated by N. Goryacheva

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Taryanik, N.V., Varyukhin, D.V. & Fedyuk, D.O. The Superconducting Magnetic System of a 400-MHz Nuclear Magnetic Resonance Spectrometer. Instrum Exp Tech 65, 625–627 (2022). https://doi.org/10.1134/S0020441222040145

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  • DOI: https://doi.org/10.1134/S0020441222040145

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