Normally conducting NMR resonators with macroscopically homogeneous distribution of the conducting material
US6781377B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2003 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An NMR resonator with RF resonator for receiving RF signals at a resonance frequency from a measuring sample in a volume under investigation of an NMR apparatus with a means for producing a homogeneous magnetic field B0 in the direction of a z axis, wherein normally conducting conductor structures of the RF resonator which act inductively and partially also capacitively are disposed between z=−|z1| and z=+|z2| on a surface which is translation-invariant (=z-invariant) in the z direction at a radial (x, y) separation from the measuring sample, is characterized in that a compensation arrangement is additionally provided on the z-invariant surface, which extends to values of at least z<−|z1|−0.5|r| and z>+|z2|+0.5|r|, wherein |r| is the minimum separation between the measuring sample and the compensation arrangement, wherein the compensation arrangement comprises additional normally conducting conductor structures which are largely RF-decoupled from the RF resonator, with the conductor structures of the compensation arrangement and of the RF resonator being composed of individual surface sections (“Z-structures”) which comprise normally conducting structu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.