Bonding of an extra-large diameter accelerating tube

Jianpu Chen; Xinghua Ma; Renquan Zhu; Juling Qian; Chuanyu Shu

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Bonding of an extra-large diameter accelerating tube

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- Bonding of an extra-large diameter accelerating tube
- Nuclear Techniques Vol. 10, Issue 8, (1987)
- 作者机构：
  
  中国科学院高能物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：03 June 1986，
  
  Published：1987-08
- 稿件说明：
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Jianpu Chen, Xinghua Ma, Renquan Zhu, et al. Bonding of an extra-large diameter accelerating tube[J]. Nuclear techniques, 1987, 10(8): 33-35,61,62.
DOI：

Jianpu Chen, Xinghua Ma, Renquan Zhu, et al. Bonding of an extra-large diameter accelerating tube[J]. Nuclear techniques, 1987, 10(8): 33-35,61,62. DOI：

摘要

高能物理所750kV预注入器是30MeV质子直线加速器的前级加速器。它采用大气型高梯度加速管

[1]

，已成功地加速50—200mA脉冲质子束，从1982年以来一直运行正常。

大气型加速管的结构比高气压型简单，而且维修方便。但由于高梯度加速场要求加速电极伸入管内，形成很强的径向电场，加速管直径必然很大（图1）。与国外同类型加速管相比较，西欧CERN加速管瓷环内径500mm，我们的加速管由于安装在加速电极内部的离子源和四极透镜都比CERN大，瓷环内径增大到600mm。虽然美国BNL加速管瓷环内径是630mm

但他们采用组件式，每一组件只包括3个瓷环与钛电极封接。日本KEK为了避免封接，采用整根瓷筒结构，瓷筒内径为1010mm。

Abstract

The accelerating tube in 750 kV pre-injector is of open-structure high-gradient type. The whole tube consists of two sections

and each section structures consist of alternate metal (stainless steel) and ceramic rings bonded together with vinyl acetate. This is one of the largest tubes ever built in the world

the inner diameter of ceramic rings reaches 600 mm.

The design aspects for improving the quality of the bonded joints in such large tubes are described. Several new techniques are adopted in cleaning process and in preparing resin films.

All joints proved to be vacuum tight and passed a series of strength tests. The tube has been working satisfactorily for more than 3 years.

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references

陈鉴璞等，原子能科学技术 , 20 , 6 , 649 ( 1986 )。

刘志满等，真空技术 , 9 , 1 , 61 ( 1980 )。

R. L. Stockley , Private communication ,( 1979 ).

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Related Author

Sun Guanqing

Related Institution

Institute of Nuclear Science and Technology, Sichuan University

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