High-field NMR spectrometers, including those used for magnetic resonance imaging in hospitals, contain magnets with superconducting coils,

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High-field NMR spectrometers, including those used for magnetic resonance imaging in hospitals, contain magnets with superconducting coils, e.g. NbTi which becomes superconducting at 9.5 K.

(a) Why is liquid helium used to cool the magnet?

(b) For He, Δ_vapH(bp) = 0.1 kJ mol⁻¹. To what process does this refer and why is the value so low?

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Inorganic Chemistry

ISBN: 9781292134147

5th Edition

Authors: Catherine Housecroft

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Question Posted: Jul 26, 2023 03:27 AM

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High-field NMR spectrometers, including those used for magnetic resonance imaging in hospitals, contain magnets with superconducting coils,

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a Liquid helium is used to cool the magnet in highfield NMR spectrometers because superconducting magnets require extremely low temperatures to mainta...View the full answer

Inorganic Chemistry

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