Imbalanced dual-inner-rod spiral high-frequency resonant cavity of superconductive cyclotron

A cyclotron and high-frequency resonant cavity technology, which is applied in the direction of magnetic resonance accelerators, accelerators, electrical components, etc., can solve problems such as unbalanced capacitance distribution and unfavorable particle extraction, and achieve the effect of improving the overall voltage distribution

Active Publication Date: 2017-02-22
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

The capacitance distribution of the high-frequency resonant cavity with a single inner rod structure is unbalanced, resulting in a large depressi

Method used

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  • Imbalanced dual-inner-rod spiral high-frequency resonant cavity of superconductive cyclotron
  • Imbalanced dual-inner-rod spiral high-frequency resonant cavity of superconductive cyclotron
  • Imbalanced dual-inner-rod spiral high-frequency resonant cavity of superconductive cyclotron

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] This design is as figure 1 As shown, it includes spiral accelerating electrode plate (1), front inner rod (2), fine-tuning capacitor (3), rear inner rod (4), rear inner rod outer conductor (5) and cavity shell (6), up and down The half cavities are symmetrical. Among them, the front and rear inner rods are respectively fixedly connected with the spiral accelerating electrode plate and the cavity casing by flanges; the tails of the upper and lower two accelerating electrode plates are connected to each other; For parts other than the body shell, the trimmer capacitor is connected to the cavity shell with a flange. The angular width of the accelerating gap between the spiral accelerating electrode plate and the shell of the cavity can be adjusted to control the distribution of the parallel impedance of the cavity. The thickness of the accelera...

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Abstract

The invention relates to an imbalanced dual-inner-rod spiral high-frequency resonant cavity of a superconductive cyclotron, and belongs to the research field of the cyclotron. The imbalanced dual-inner-rod spiral high-frequency resonant cavity comprises a) an asymmetrical spiral accelerating electrode; b) accelerating gaps with asymmetrical angular widths on the two sides of the electrode; c) two inner conductors having different diameters and lengths and connected with the accelerating electrode; d) an asymmetrical spiral cavity shell; and e) fine-tuning capacitors on the top and bottom of the cavity. The high-frequency cavity structure provided by the invention can realize large-scale regulation of the cavity resonant frequency and voltage distribution by adjusting the heights and positions of the two inner rods, and the above-mentioned parameters can be subjected to fine tuning by changing the angular widths of the accelerating gap between the accelerating electrode and the spiral shell. By adoption of the imbalanced dual-inner-rod spiral high-frequency resonant cavity for satisfying the requirement of the high-frequency system cavity of the superconductive cyclotron, the voltage in the concave position of a voltage distribution curve of the high-frequency cavity is effectively improved; the overall voltage distribution of the cavity is improved; and the eduction of accelerating particles from the cyclotron can be facilitated.

Description

technical field [0001] The invention specifically relates to an unbalanced double-inner-rod helical high-frequency resonant cavity of a superconducting cyclotron, which belongs to the technical field of superconducting cyclotrons. Background technique [0002] The high-frequency system is an important part of the superconducting cyclotron project, in which the high-frequency resonant cavity plays a vital role in the high-frequency system, and the energy required for the movement of particles in the cyclotron is provided by the high-frequency resonant cavity. When the particles pass through the acceleration gap of the cavity, due to the potential difference between the two boundaries of the high-frequency resonant cavity, the solid particles gain energy and are accelerated. In a typical cyclotron, the voltage at the center of the accelerator is low and the voltage at the tail is high, which helps to reduce the number of sparks in the center of the accelerator and facilitates ...

Claims

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Application Information

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IPC IPC(8): H05H7/18H05H13/00
CPCH05H7/18H05H13/00
Inventor 张天爵纪彬曹学龙殷治国邢建升李鹏展魏俊逸郭娟娟付晓亮赵振鲁
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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