Wire distribution structure and method for gradient coils connected in parallel and layered mode

A gradient coil and wiring structure technology, applied to coils, measuring devices, instruments, etc., can solve problems such as large performance differences, and achieve the effects of improving performance, reducing eddy current effects, and reducing inductance

Inactive Publication Date: 2014-09-03
NANJING INST OF TECH
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Problems solved by technology

[0007] In order to solve the problems existing in the above-mentioned background technology, the present invention aims to provide a parallel layered wiring structure and wiring method of gradient coils, which overcomes the problem of large performance differences between GX and GY coils in the prior art, and improves the overall performance of the gradient coils

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  • Wire distribution structure and method for gradient coils connected in parallel and layered mode
  • Wire distribution structure and method for gradient coils connected in parallel and layered mode
  • Wire distribution structure and method for gradient coils connected in parallel and layered mode

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Embodiment Construction

[0032] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] This embodiment is described by taking a cylindrical active shielded gradient coil as an example.

[0034] Active shielded gradient coil components mainly include gradient coils in three directions of X, Y, and Z, which are denoted by GX, GY, and GZ respectively, where GX and GY are transverse gradient coils with similar coil structures and the same design principles, and GZ is a longitudinal coil . The gradient coils in each direction are further divided into main coils and shielding coils, denoted by P and S respectively, for example, GXP represents the main coil of the gradient coil in the X direction. like figure 1 Shown is a schematic diagram of the distribution of three types of coils in a single-layer gradient coil, in which the innermost layer is the imaging area DSV, the inner three layers of coils are the main coils, and ...

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Abstract

The invention discloses a wire distribution structure for gradient coils connected in a parallel and layered mode. At least one of a GX gradient coil, a GY gradient coil and a GZ gradient coil is of a structure with at least two layers, a certain layer of a certain gradient coil is adjacent to the other layer of the same kind of gradient coil or is adjacent to a certain layer of a different kind of the gradient coil in the space, main coils of all layers of the same kind of the gradient coils are connected in parallel. The invention further discloses a wire distribution method for the gradient coils connected in the parallel and layered mode. By means of the wire distribution structure and method for the gradient coils connected in the parallel and layered mode, the great difference between the GX coil performance and the GY coil performance is avoided, and the performance of the whole gradient coils is improved.

Description

technical field [0001] The invention belongs to the field of nuclear magnetic resonance systems, and in particular relates to a parallel and layered wiring structure and wiring method of gradient coils. Background technique [0002] Magnetic resonance imaging (MRI) system is a medical system that uses nuclear magnetic resonance methods to obtain detailed images of patients, and is one of the most important tools for clinical medical diagnosis. Among all medical imaging methods, MRI has the clearest image of soft tissue and plays an important role in the diagnosis and treatment of diseases in many specialized departments. [0003] The core components of an MRI instrument include three parts: a magnet system, a gradient system and a radio frequency system. Among them, the magnet system can generate a strong and highly uniform static magnetic field around a certain part of the patient's body. At present, a superconducting magnet system or a permanent magnet system are commonly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/385H01F5/00
Inventor 边彩霞田永伟陈磐
Owner NANJING INST OF TECH
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