Optimization design algorithm of superconducting magnet external magnetism shielding coil

Abstract

The invention provides a simple and effective multi-parameter optimization algorithm without interval limitation, in particular to an optimization design algorithm of a superconducting magnet external magnetism shielding coil, which is used for the design of the superconducting magnet external magnetism shielding coil. The invention changes all parameters related to the design of the superconducting magnet external magnetism shielding coil one by one according to the optimization results on the basis of an initial value, in addition, constraint conditions are taken into consideration during the result evaluation, and the coefficients are regulated and changed according to the condition whether the results are optimized or not, so the optimization of the design parameters is realized.

Description

technical field

[0001] Based on the large-scale and high-speed computing capabilities of computers, the present invention proposes a simple and effective multi-parameter optimization algorithm without interval restrictions, specifically an optimal design algorithm for external magnetic shielding coils of superconducting magnets for use in superconducting magnets. The design of the magnetomagnetic shielding coil. The optimal design algorithm of the present invention is not limited to the optimal design of the external magnetic shielding coil in the superconducting magnet, and can also be used in any other occasions requiring parameter optimization. Background technique

[0002] At present, the overall nuclear magnetic resonance imaging system can apply a special variable magnetic field to a certain part of the human body according to the characteristics of the micro-magnetism of the nucleus of the cell, and then observe the state changes of a certain atom in the magnetic fiel...

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