Y-structure inner rod spiral chamber of superconducting cyclotron

A cyclotron and helical technology, applied in magnetic resonance accelerators, accelerators, electrical components, etc., can solve the problem of voltage distribution curve depression, and achieve the effect of increasing the accelerating voltage and optimizing the cavity voltage distribution.

Active Publication Date: 2016-12-14
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the voltage distribution curve of the high-frequency cavity of the current superconducting cyclotron has a certain depression, and combine

Method used

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  • Y-structure inner rod spiral chamber of superconducting cyclotron
  • Y-structure inner rod spiral chamber of superconducting cyclotron

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Embodiment Construction

[0014] The present invention will be described in detail below with reference to the drawings and embodiments.

[0015] Such as figure 1 As shown, the cavity of the present invention includes a spiral acceleration electrode plate (1), a Y-structure inner rod (2), an inner rod outer conductor (3), a trimmer capacitor (4) and a spiral cavity shell (5). Among them, the center single inner rod of the Y inner rod is connected to its two rods by welding. One end of the center single inner rod is connected to the outer conductor of the inner rod, and one end is connected to the trimming capacitor; the Y inner rod uses a flange to connect to the outer conductor of the inner rod. It is fixedly connected with the spiral acceleration electrode plate; the outer conductor of the inner rod is fixed to the cavity shell by a flange; the trimming capacitor is connected with the central single inner rod of the Y inner rod by a flange; the tails of the upper and lower acceleration electrode plates a...

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Abstract

The invention relates to a Y-structure inner rod spiral chamber of a superconducting cyclotron, wherein the Y-structure inner rod spiral chamber belongs to the researching field of a cyclotron. According to the cyclotron, through combining a single-inner-rod-structure spiral chamber with a double-inner-rod-structure spiral chamber, a new Y-structure inner rod spiral chamber model is formed, wherein one end of a front branch rod and one end of a back branch rod are connected with an acceleration plate electrode, and the other end of the front branch rod and the other end of the back branch rod are connected with a central single inner rod, wherein the front branch rod and the back branch rod have different radiuses and different lengths. According to the Y-structure inner rod spiral chamber provide by the invention, large-range adjustment for chamber resonance frequency and voltage distribution can be realized through adjusting the height of a central single inner rod and positions of the central single inner rod and the two branch rods, and fine adjustment on the chamber resonance chamber is finished through changing distance between a fine-turning capacitor and top end of a chamber housing. The Y-structure inner rod spiral chamber of the superconducting cyclotron has advantages of effectively settling a problem of defects of a chamber acceleration voltage distribution voltage, increasing average acceleration voltage of particles and facilitating leading-out of particles from the superconducting cyclotron.

Description

Technical field [0001] The invention specifically relates to a rod spiral cavity in a Y structure of a superconducting cyclotron, belonging to the technical field of superconducting cyclotrons. Background technique [0002] A cyclotron is a device that uses a magnetic field to make charged particles in a cyclotron motion, and is repeatedly accelerated by a high-frequency electric field in motion to increase the energy of the particles. Its basic structure includes a magnet system, a vacuum system, and a high-frequency system. Among them, the high-frequency system includes a high-frequency cavity, a transmitter, and a low-level system to provide energy for the accelerated particles. The high-frequency cavity is the main component that establishes the acceleration voltage for particle acceleration. In the superconducting cyclotron, since the magnet is designed in a spiral shape, the high-frequency resonant cavity must also be designed in a spiral shape in order to fit the magnet v...

Claims

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Application Information

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IPC IPC(8): H05H7/18H05H13/00
CPCH05H7/18H05H13/00
Inventor 殷治国曹学龙纪彬郭娟娟邢建升魏俊逸李鹏展付晓亮赵振鲁
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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