Provided is a nuclear magnetic resonance probe coil that is included in a
nuclear magnetic resonance apparatus in which the direction of a static
magnetic field is horizontal and that can highly sensitively measure
multiple nuclear species. A nuclear magnetic resonance apparatus includes
a unit that horizontally applies a static magnetic field, a unit that
vertically moves a specimen to a predetermined position in the apparatus,
and a probe including in the distal part thereof a probe coil that
applies a radiofrequency signal to the specimen and that detects a signal
produced by the specimen. The probe coil includes multiple pairs of
superconducting thin-film rings formed on respective substrates that are
disposed in parallel with the static magnetic field while being separated
from each other by a predetermined distance, a detection loop that
detects a signal received by the superconducting thin-film rings, and a
transmission coil that applies the radiofrequency signal to the specimen
and that has the normal thereto extended horizontally.