Core column and magnetic pole structure of endogenous cyclotron

By designing a frustum-shaped core column that is smaller at the top and larger at the bottom, and an integrated main magnetic pole structure, the problems of insufficient space and reduced beam focusing caused by the reduction in core column distance in the internal source cyclotron accelerator were solved, realizing a cyclotron accelerator with a higher magnetic field and a smaller size.

CN121038093APending Publication Date: 2025-11-28国电投核力同创(北京)科技有限公司
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Patent Information

Application Number
CN202511035111.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

In the prior art, reducing the distance between the upper and lower core pillars in the central region of an internal cyclotron accelerator to increase the magnetic field would result in insufficient space for installing the ion source, while increasing the radial dimension of the core pillars would reduce the beam focusing performance.

Method used

It adopts a frustum-shaped core column structure with a smaller top and a larger bottom. The frustum has a recessed platform for placing the ion source and is matched with the ion source in size. Combined with the integrated main magnetic pole design, the four fan-shaped magnetic poles have an inclined head design to smooth the magnetic field transition.

Benefits of technology

Without increasing the radial dimension of the core column, the magnetic field in the central region is increased, ensuring sufficient installation space for the ion source and improving beam focusing, thus achieving a cyclotron accelerator with a higher magnetic field and a smaller overall size.

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Abstract

The invention provides a core column and magnetic pole structure of an endogenous cyclotron, the core column is symmetrically arranged in central areas at two sides of a central plane of the accelerator, the core column is a big-end-down circular truncated cone-shaped core column, a pair of core column concave platforms is arranged on the circular truncated cone, and the core column concave platforms are used for arranging ion sources; according to the magnetic pole structure, a main magnetic pole and a core column are integrally manufactured, and the core column in the middle of the integrated magnetic pole structure is of a big-end-down circular-truncated-cone-shaped structure; chamfers are arranged at the junctions of the two side faces and the upper surface of each magnetic pole of the integrated magnetic pole structure, and four slopes inclining towards the central point of the central area are designed in the head area of the fan-shaped magnetic pole, so that transition from a circular truncated cone in the central area to a peripheral magnetic field is smoother; on the basis that the radial size of the upper surface of the core column is not increased, the head magnetic field is still improved by increasing the volume, close to the lower surface, of the core column; the two symmetrical concave platforms are designed on the circular truncated cone type core column, so that the symmetry of a magnetic field is reserved, and meanwhile, a sufficient installation space is reserved for an ion source.
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Citation Information

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