| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an NMR-MAS probe head which allows a rotor change without opening the probe head and can remain in a prescribed position in a magnet system.SOLUTION: The NMR MAS probe head has an MAS stator 7 arranged in a tube, and the MAS stator 7 includes a base bearing 8 and a front bearing 75 for receiving a substance to be measured at a measurement position within an MAS rotor. The front bearing 75 has an opening, and the opening can be closed by a closing device for inserting the MAS rotor into a space between the base bearing 8 and the front bearing 75. A transport conduit 10 extending to the MAS stator 7 is provided in the tube, and the MAS rotor is transported in the transport conduit 10. The closing device can close the opening by moving to transverse an axis passing the center of the base bearing 8 and the center of the opening of the front bearing 75 in the MAS stator 7.</p> |
