title: Sample end effects.
abstract: In high-resolution NMR spectroscopy, the variation of the magnetic field inside the sample has a measurable impact on lineshape. We present a model to calculate the moments of the internal field, as they relate to the current that should be set in the compensation coils to level the magnetic perturbations originating from the sample. We apply this model to common sample geometries, and discuss the practical implications for sample-limited applications.
authors.affiliation: Agilent Technologies, Inc., 5301 Stevens Creek Blvd, Santa Clara, CA 95052, United States. Electronic address: obuu@formfactor.com.
authors.forename: Olivier
authors.initials: O
authors.lastname: Buu
keywords: Lineshape; NMR; Sample tube; Susceptibility