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Journal Articles Journal of Magnetic Resonance Year : 2010

Measurements of magnetic field stability in inhomogeneous magnetic fields at low temperature

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Abstract

We present an original method for field stability measurements in a bath of liquid helium. This method is used to validate the power supply of a superconductive magnet operating in driven mode. The experiment consists in the measurement of the NMR signal of a sample of liquid 3He, placed inside the field of a test magnet driven by a power supply. The homogeneity of the magnet is a strongly limiting factor for measurements but through the use of an inductively coupled microcoil and careful signal processing, a precision of 5.5 ppm was achieved.
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Dates and versions

cea-00854521 , version 1 (27-08-2013)

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Cedric Hugon, Jacques-Francois Jacquinot, Dimitris Sakellariou. Measurements of magnetic field stability in inhomogeneous magnetic fields at low temperature. Journal of Magnetic Resonance, 2010, 202, pp.1-8. ⟨10.1016/j.jmr.2009.08.005⟩. ⟨cea-00854521⟩
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