Cryogenic NMR probe
US7288939B1 · kind B1 · utility
8Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2006 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Aug 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The thermal performance and vacuum properties of a cryogenic NMR probe are improved when thermal control is implemented by conductive heat transfer to a cold head cooled by a heat exchanger to below the selected operating temperature. The heat load is manipulated by locating a heater to produce a more nearly constant heat load in conjunction with pulsed RF power and in one embodiment transferring such heater power through a common thermal path. In another embodiment, the heater power is conductively transferred directly to the heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.