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Method for producing superconducting radio-frequency acceleration cavity

A manufacturing method and technology of accelerating chambers, applied in accelerators, electrical components, etc., can solve problems such as a large amount of waste, increased manufacturing costs, and material defects, and achieve the effects of simplifying the manufacturing process, increasing productivity, and reducing costs

Inactive Publication Date: 2011-07-20
HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the plastic working method, because the manufacturing procedure is complicated and requires many steps, it takes a lot of time to manufacture, and because impurities are easily mixed during the rolling process, causing defects in the material, so a large amount of Scrap, leading to higher manufacturing costs
In addition, in the slicing method, about 50% of waste is generated due to the thickness of the saw used, and subsequent surface treatment is required because the surface after cutting becomes rough.

Method used

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  • Method for producing superconducting radio-frequency acceleration cavity
  • Method for producing superconducting radio-frequency acceleration cavity
  • Method for producing superconducting radio-frequency acceleration cavity

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Embodiment Construction

[0025] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] 1. Background

[0027] Considering the high electric field of the superconducting high-frequency cavity, electrolytic polishing (EP) has obvious advantages over chemical polishing (CP). Since then, several other research institutes have verified this fact by superconducting cavities made of polycrystalline niobium sheets. It is speculated that this problem may be related to the grain boundaries of niobium materials, and a variety of research equipment has been used to carry out research on superconducting cavities of giant crystal niobium and single crystal niobium, and very promising results have been obtained.

[0028] Now, it is an indisputable fact that a high electric field can be obtained in a single crystal niobium cavity. In recent years, technical discussions on the manufacturing method of a single crystal niobium ingot, a performance re...

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Abstract

Provided is a method for producing a superconducting radio-frequency acceleration cavity for use in a charged particle accelerator which can be produced in a short time at a low cost with a minimum amount of niobium material to be discarded. The method for producing a superconducting radio-frequency acceleration cavity comprises (a) a step for obtaining an ingot made of niobium material in the shape of a disk, (b) a step for slicing the niobium ingot into a plurality of niobium plates each having a predetermined thickness by vibrating a multiplex wire back and forth while blowing fine floating abrasive grains in a state where the niobium ingot is supported, (c) a step for removing the floating abrasive grains adhering to the niobium plates thus sliced, and a step (d) for forming a niobium cell of a desired shape by deep drawing the niobium plate.

Description

technical field [0001] The present invention relates to a high-frequency accelerating cavity used in a charged particle accelerator such as a synchrotron, in particular to a manufacturing method of a superconducting high-frequency accelerating cavity. Background technique [0002] A high-frequency accelerating cavity is a metal cavity that uses a high-frequency electric field to resonate high-frequency waves of a specific frequency, thereby effectively accelerating charged particles. It is mainly used in charged particle accelerators such as synchrotrons. [0003] The high-frequency cavity will generate heat when generating high-frequency waves, so it is best to use metal materials with high thermal conductivity and low resistance. In the past, copper was used as the material of this high-frequency accelerating cavity. However, as the accelerating electric field increases, the heat generation will also increase. Therefore, the high-frequency accelerating cavity made of copp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H7/20C22B9/22C22B34/24
CPCC22C27/00H05H7/20C22B34/24Y10T29/49014B21D35/005B21D22/20
Inventor 齐藤健治竹内孝一山崎紭志
Owner HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION
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