Nuclear magnetic resonance probe with cooled sample coil
US7403007B1 · kind B1 · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2007 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Feb 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34053
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a nuclear magnetic resonance probe, the sample coil is connected to the RF excitation source via transmission lines that are arranged to generate one or more nodal points at the 1H excitation frequency along their lengths and a balanced magnetic filed profile within the sample coil. Heat exchangers are then connected directly to the inner conductor of the transmission line at these nodal points. The transmission line inner conductors are in direct contact with the sample coil and efficiently cool the coil to cryogenic temperatures without interfering with the 1H resonance or RF profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.