Magnetic pole forming method, magnetic field adjusting device, accelerator and particle beam therapy system

By integrating a magnetic field measuring element and three-dimensional printing within electromagnets, the method addresses the limitations of small correction iron sizes, enabling precise magnetic field adjustments and improving handling and accuracy.

JP7612495B2Active Publication Date: 2025-01-14HITACHI HIGH TECH CORP
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Patent Information

Application Number
JP2021070142
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-04-19
Publication Date
2025-01-14
Estimated Expiration
2041-04-19

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Abstract

To enable easy adjustment of a magnetic field in an electromagnet device, or to enable fine adjustment of a magnetic field distribution in an electromagnet device.SOLUTION: A magnetic pole shaping method includes the following steps (i) to (iii): (i) arranging a magnetic field measurement element M151 in an electromagnet device M100 and measuring a magnetic field distribution in the electromagnet device M100; (ii) determining, based on the measured magnetic field distribution, a corrected magnetic material distribution representing the distribution of a magnetic material that is shaped with respect to a magnetic pole M101 in the electromagnetic device M100, while the corrected magnetic material distribution may be determined as, for example, the height increment of a magnetic material in the magnetic pole M101; and (iii) shaping a magnetic material with respect to the magnetic pole M101, based on the corrected magnetic material distribution. Shaping a magnetic material to the magnetic pole M101 in the step (iii) may include removing a shaping substrate M105 from the electromagnetic device M100, shaping a magnetic material on the shaping substrate M105, and mounting the shaping substrate M105, on which a magnetic material is shaped, to the electromagnetic device M100.SELECTED DRAWING: Figure 1
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Citation Information

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