MAGNETIC FIELD PROBE, PARTICULARLY FOR MAGNETIC RESONANCE APPLICATIONS, AND TRACKING ARRANGEMENT COMPRISING THE SAME

摘要

A magnetic field probe (2), particularly for magnetic resonance applications, comprises a sample (4) that exhibits nuclear magnetic resonance (NMR) at an operating frequency, and an electrically conductive structure (6) surrounding the sample and configured for pulsed NMR excitation of the sample and for receiving an NMR signal generated by the sample. In order to improve performance and compactness of the field probe, the sample is configured as a capsular sample comprising a shell (10) which contains a fluid core (12) of a sample substance that exhibits NMR at the operating frequency. An arrangement for tracking the position and orientation of an object or subject disposed in a main magnetic field region of a magnetic resonance (MR) apparatus during operation thereof, is provided with a carrier structure made of non-conducting material and rigidly attachable to the object or subject, and with a plurality of at least three magnetic field probes according to one of the preceding claims mounted to said carrier structure.