Title:
磁場発生用コイルユニットおよびコイル巻装方法
Document Type and Number:
Japanese Patent JP3670452
Kind Code:
B2
Abstract:
Although magnet coil windings are distributed discontinuously, the distribution of magnetic fields generated actually approaches a desired continuous distribution. The desired continuous distribution is defined analytically, as closely as possible. A system for acquiring magnetic resonance data has a coil segment formed by winding a conductor on a bobbin representing an axial direction. A magnetic field is generated by supplying current into the conductor. Winding positions at which the conductor is wound turn-by-turn on the bobbin are determined in agreement with a specified current step value and sequentially from a winding positioned at an outermost end of the coil segment in the axial direction. Additionally, a shunt element for shunting the current carried turn-by-turn is arranged in the coil segment in relation to a pattern of turns of the coil segment by winding the conductor into a plurality of current flows through a plurality of shunt paths.
Inventors:
Hiromi Kawamoto
Application Number:
JP20352997A
Publication Date:
July 13, 2005
Filing Date:
July 29, 1997
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G01R33/34; A61B5/055; G01R33/38; G01R33/381; G01R33/385; H01F5/00; (IPC1-7): A61B5/055; G01R33/385
Domestic Patent References:
| JP8084711A | ||||
| JP60094705A | ||||
| JP61085803A |
Attorney, Agent or Firm:
Hisashi Hatano
Shunguchi Sekiguchi
Shunguchi Sekiguchi