APPARATUS FOR HIGH-RESOLUTION NMR SPECTROSCOPY AND/OR IMAGING WITH AN IMPROVED FILLING FACTOR AND RF FIELD AMPLITUDE

摘要

The present invention concerns an apparatus for liquid or solid state NMR high-resolution spectroscopy and/or NMR imaging of at least one sample, which allows to improve both the filling factor and the radio frequency field amplitude in a detection coil surrounding said at least one sample. The apparatus comprises: - a static probe comprising an outer coil (5) for excitation of nuclei of said sample by generating an incident radio frequency field at the Larmor frequency of said nuclei, and for reception of a return radio frequency field emitted by said sample, and characterized in that said apparatus comprises a sensitive coil (6a') which is mounted closely around or in contact with the sample container and which is wirelessly coupled to said outer coil acts as a fluc concentrator and defines a sensing volumewhich is substantially equal to said sampling volume, so that the filling factor and the radio frequency field amplitude in said sensitive coil is maximized.