Nuclear magnetic resonance apparatus and methods
US4115730A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1977 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Apr 7, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nuclear magnetic resonance spin density distribution in a sample is obtained for a selected plane or planes by placing the sample in a static magnetic field, applying a gradient to the field and simultaneously applying selective rf pulses to select a plane or planes in the sample, switching to an orthogonal gradient and simultaneously applying selective rf pulses to select strips in the selected plane or planes and then applying orthogonal field gradients to the sample of such relative magnitudes that each point of the selected strips is subjected to a resultant magnetic field of amplitude unique to that point. The free induction decay signal is then read out from the strips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.