Dipole shim coil for external field adjustment of a shielded superconducting magnet
US7135948B2 · kind B2 · utility
1Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Oct 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F6/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An actively shielded superconducting magnet having a dipole shim coil for adjusting and fine-tuning an external or far fringe magnetic field produced by a main coil of the magnet. An active shield coil is coupled to the main coil in reverse polarity and produces a magnetic field when energized that opposes the far fringe field to substantially reduce the far fringe field. The dipole shim coil is electrically isolated from the active shield and main coils of superconducting magnet, and produces a magnetic field when energized that provides for the fine adjustment of any residual far fringe field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.