Physical design method for central area of high-current cyclotron

A cyclotron and physical design technology, applied in the direction of magnetic resonance accelerators, accelerators, electrical components, etc., can solve problems such as the inability to find, the precise design method of particle trajectories in the central area, etc.

Active Publication Date: 2021-11-09
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention proposes a physical design method for the central area of ​​a high-current cyclotron. The question of the balance point of efficiency, acceleration phase, radial centering, and axial focus is derived

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  • Physical design method for central area of high-current cyclotron
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  • Physical design method for central area of high-current cyclotron

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Embodiment Construction

[0042] Design principle of the present invention

[0043]1. The design principle of backtracking the particle trajectory in the central area. The innovation point of the present invention is that it is not easy to imagine. It is difficult to imagine that the position of the clamping beam of the electrode column in the present invention is positioned twice. Without the first positioning, the second positioning is inaccurate, but only the first positioning without the second positioning, the first positioning is even more inaccurate, and only the combination of the second positioning is accurate positioning. The first positioning is to put the electrode column into the high-frequency electric field after the static equilibrium track is calculated. The electric field of the motor column is not included in the tracking. When the beam trajectory in the center area determined by reverse tracking is placed into the electrode column, the electric field will change again at this time...

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Abstract

The invention discloses a physical design method for a central area of a high-current cyclotron. The method comprises the following steps of calculating the energy of particles when the particles pass through each physical entity of the central area; calculating a particle static balance orbit radius based on the energy on each physical entity; according to the calculated particle static balance orbit radius, determining a central area structure used for clamping a beam; tracking from a static balance orbit under high energy to the central area so as to optimize and adjust the structure of the central area according to a beam trajectory; optimizing the beam quality of the central area by using a particle tracking method, and determining a central area structure for optimizing the beam quality of the central area; repeating the step 5, repeating iteration, and optimizing and adjusting the central area structure used for clamping the beam and improving the beam quality until the central area structure reaches the design standard. According to the invention, a balance point which can give consideration to the balance of central area particle extraction efficiency, acceleration phase, radial centering and axial focusing is found.

Description

technical field [0001] The invention belongs to the technical field of high-current cyclotrons, and in particular relates to a physical design method for the central area of ​​high-current cyclotrons. Background technique [0002] In a cyclotron, the central region refers to the transition region of the acceleration process of particles from rest (in the case of an internal ion source) or low energy (in the case of an external ion source) to a certain high energy, covering the first few laps of the beam moving in the accelerator. The beam quality in the central area has a decisive influence on whether the accelerated particles can be extracted from the accelerator. The beam quality of the central area includes the extraction efficiency of the particles in the central area, the acceleration phase of the particles in the central area when they pass through the acceleration gap, the radial alignment of the particles in the central area, and the axial focusing of the beam in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H13/00H05H7/00
CPCH05H13/005H05H7/00
Inventor 冀鲁豫管锋平安世忠边天剑郑侠纪彬贾先禄
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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