Nuclear magnetic resonance apparatus
US6489769B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Jun 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3815
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nuclear magnetic resonance apparatus including: a cup-shaped high-temperature superconductor 20 having a hollow cylindrical shape or portion cooled to not more than a superconducting transition temperature in a vacuum insulating container 22; and a detection coil 12 for detecting an NMR signal of a material 11 to be measured inserted into the hollow cylindrical portion 20a of the high-temperature superconductor. The high-temperature superconductor is magnetized in an axial direction, a static magnetic field is thereby generated in the hollow cylindrical portion in a cylinder axial direction, and the NMR signal of a material is detected by the detection coil and the existing spectrometer. A strong static magnetic field comparable to a conventional superconducting magnet is formed without using a refrigerant (liquid helium) essential for operating the conventional superconducting magnet, and a strength distribution of the static magnetic field is homogeneous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.