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Inner injection type superconducting cyclotron central area split and layered type magnet plug block structure

A cyclotron, injection technology, applied in magnetic resonance accelerators, superconducting magnets/coils, magnetic objects, etc., can solve the problem of difficult to ensure the installation requirements of Bz magnetic measurement system and ion source at the same time, and achieve enhanced axial focusing, Fast and accurate installation and disassembly, the effect of reducing the beam loss rate

Active Publication Date: 2019-11-08
HEFEI CAS ION MEDICAL & TECHNICAL DEVICES CO LTD
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Problems solved by technology

Among them, the bump magnetic field can be constructed through some special magnet structures, but the magnet structure that meets the requirements of the bump magnetic field is difficult to ensure the installation requirements of the Bz magnetic measurement system and the ion source at the same time, and frequent installation and disassembly are involved in the magnetic measurement process Therefore, it is very necessary to design a separate magnet structure that meets the requirements of the Bump magnetic field and can take into account the installation of the magnetic measurement system and the ion source.

Method used

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  • Inner injection type superconducting cyclotron central area split and layered type magnet plug block structure
  • Inner injection type superconducting cyclotron central area split and layered type magnet plug block structure
  • Inner injection type superconducting cyclotron central area split and layered type magnet plug block structure

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] see Figure 1-7 As shown, the center of the inner-injection superconducting cyclotron divides into a layered magnet block structure. The magnet block structure includes an upper magnet structure and a lower magnet structure, and the upper magnet structure and the lower magnet structure are mirror-symmetrical about the mid-plane. The magnet The structure includes the lower body 1 of the magnet body, and the magnet structure includes the upper body 3 of the magnet body. The lower body 1 of the magnet body is equipped w...

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Abstract

The invention discloses an inner injection type superconducting cyclotron central area split and layered type magnet plug block structure. The magnet plug block structure comprises an upper magnet structure and a lower magnet structure, wherein the upper magnet structure and the lower magnet structure are in mirror symmetry with respect to a midplane. The lower magnet structure comprises a magnetbody lower main body. The upper magnet structure comprises a magnet body upper main body. The magnet body lower main body is equipped with magnet positioning pins, a magnet body lower branch body, positioning pin plug screws and bolts. Under the premise of taking into account installation and operation of a magnetic measurement system and an ion source, the magnet structure can be in mirror symmetry with respect to the midplane, thereby providing a suitable Bump magnetic field for a central area, enhancing axial focusing of particles and reducing beam loss rate. The structure can realize fastand accurate installation and disassembly, has high repeated positioning accuracy, and provides great convenience for magnetic field testing and adjustment and replacement of an ion source head.

Description

technical field [0001] The invention relates to a magnet block structure, in particular to an inner-injected superconducting cyclotron central partition layered magnet block structure, which belongs to the application field of superconducting cyclotrons. Background technique [0002] In a superconducting cyclotron, the axial focusing of particles is provided by the degree of modulation of the magnetic field and the helix angle. In the central region, the modulation degree and the helix angle are small, which is not enough to provide sufficient axial focus, and the focus compensation provided by the electric field and the convex magnetic field (Bump magnetic field) is required. Among them, the bump magnetic field can be constructed through some special magnet structures, but the magnet structure that meets the requirements of the bump magnetic field is difficult to ensure the installation requirements of the Bz magnetic measurement system and the ion source at the same time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H7/04H05H13/00H01F6/00
CPCH05H7/04H05H13/005H01F6/00
Inventor 葛剑陈根侯小雨潘洁春杨庆喜陈永华冯汉升宋云涛
Owner HEFEI CAS ION MEDICAL & TECHNICAL DEVICES CO LTD
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