NUCLEAR MAGNETIC RESONANCE PROBE

摘要

PROBLEM TO BE SOLVED: To provide a nuclear magnetic resonance probe reducing loss by high-frequency cable from a probe coil to a preamplifier and enhancing sensitivity of an NMR signal. SOLUTION: A changing-over switch 1 for the NMR probe is divided into a switching section 20 including a switching device 14 and a filtering section 19 filtering the switch control signal and the RF transmitted signal. The switching section 20 is arranged within a probe body 21 inserted into a magnet of the probe. The filtering section 19 is arranged near a measuring device 4 exterior of the probe. The switching section 20 reduces the cross sectional structure of thickness and breadth corresponding to elongated shape of a probe body 21. Thus, the length from a probe coil to a preamplifier can be shortened substantially to reduce the loss. COPYRIGHT: (C)2008,JPO&INPIT