DNP-NMR probe and method of using the same
US10955498B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 24, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Nov 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/62
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Attenuation of microwaves is reduced or prevented when vacuum windows are provided in microwave waveguides of a DNP-NMR probe. A DNP-NMR probe has an inner container and an outer container. The inner container has therein a sample tube containing a sample to which radicals are added. The outer container keeps a space between the outer container and the inner container in the outer container in a vacuum state. The outer container has an outer container waveguide that has a vacuum window at an inner end portion and guides microwaves. The inner container has a vacuum window facing the vacuum window of the outer container waveguide through vacuum, and guides microwaves transmitted from the outer container waveguide to the sample. The window-to-window distance between the vacuum window of the outer container and the vacuum window of the inner container is adjusted by means of adjustment bolts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.