Radio frequency field coil for NMR
US4680548A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1986 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Jul 16, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one embodiment, referred to as the "high-pass" version, the radio frequency (RF) coil is made up of two conductive loop elements, each including serially-connected capacitors. The loop elements are electrically interconnected by axial conductive segments having inherent inductances associated therewith. Electrically, the coil can be viewed as a slow wave delay line structure wrapped around a cylinder and connected to itself. The coil can be energized by connecting a source of RF power across one of the capacitors in the loop elements. In another embodiment, termed the "band-pass" version, the axial conductive segments, as well as the conductive loop elements, are provided with capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.