NMR CryoMAS probe for high-field wide-bore magnets
US7282919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | May 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
“An MAS probe is disclosed for obtaining a substantial improvement in signal to noise (S/N) in triple-resonance high-resolution (HR) magic-angle-spinning (MAS) NMR of samples near room temperature (RT) in high-field magnets where the magnet's RT shim bore is greater than 60 mm. All critical circuit components, including the sample coils, are located along with the spinner assembly in a thermally insulated cold zone pressurized with helium gas. The spinner assembly attaches to a sealed, curved, rotor-loading tube to permit automatic sample change, and it is surrounded by a partially insulated jacket cooled with a cryogenic fluid, generally nitrogen gas. The MAS probe is also compatible with magic angle gradients, variable temperature operation, field locking, and commonly available closed-cycle cold fingers.”
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.