Design and manufacture of cryogenic and superconductor system for Shanghai Electron Beam Ion Trap

WANG Naxiu1 CHEN Yonglin1 YAN Heping1 JIANG Dikui1 ZHU Xikai1 Guo Panlin1 WANG Futang2 DING Liren2 SHI Jin3 LI Wei3 LU Di4 ZOU Yaming4 1

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Design and manufacture of cryogenic and superconductor system for Shanghai Electron Beam Ion Trap

更新时间：2021-03-12

- Design and manufacture of cryogenic and superconductor system for Shanghai Electron Beam Ion Trap
- NUCLEAR TECHNIQUES Issue 3, (2006)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院合肥等离子体研究所
  3. 中国电子科技集团公司第16研究所
  4. 复旦大学应用离子束物理实验室,上海,201800
  5. ,上海,200433
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL622
- Published：01 March 2006
- 稿件说明：
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[1]王纳秀,陈永林,阎和平,蒋迪奎,朱希恺,郭盘林,王福堂,丁立人,施锦,李炜,路迪,邹亚明.上海电子束离子阱低温超导磁体系统的研制[J].核技术,2006(03):169-173.

WANG Naxiu1 CHEN Yonglin1 YAN Heping1 JIANG Dikui1 ZHU Xikai1 Guo Panlin1 WANG Futang2 DING Liren2 SHI Jin3 LI Wei3 LU Di4 ZOU Yaming4 1. Design and manufacture of cryogenic and superconductor system for Shanghai Electron Beam Ion Trap[J]. Nuclear techniques, 2006, (3): 169-173.
[1]王纳秀,陈永林,阎和平,蒋迪奎,朱希恺,郭盘林,王福堂,丁立人,施锦,李炜,路迪,邹亚明.上海电子束离子阱低温超导磁体系统的研制[J].核技术,2006(03):169-173. DOI：

WANG Naxiu1 CHEN Yonglin1 YAN Heping1 JIANG Dikui1 ZHU Xikai1 Guo Panlin1 WANG Futang2 DING Liren2 SHI Jin3 LI Wei3 LU Di4 ZOU Yaming4 1. Design and manufacture of cryogenic and superconductor system for Shanghai Electron Beam Ion Trap[J]. Nuclear techniques, 2006, (3): 169-173. DOI：

摘要

介绍了上海电子束离子阱（Electronbeamiontrap

EBIT）装置低温超导磁体系统的研制过程和测试结果。超导磁体由一对上下布置的Helmholtz线圈组成

中心最大磁场强度可达5.3T

两线圈的峰值磁场偏差小于3×10-4T

在中心轴线上±10mm内磁场均匀度好于2×10-4

磁场衰减率在8h内小于1×10-4。低温系统采用双冷屏结构

通过二级G-M制冷机冷却冷屏来降低液氦的蒸发量。系统液氦灌注达到平衡后

液氦的平均蒸发量为1.1L/h

基本满足了用户的要求。

Abstract

Design and manufacture of the cryogenic and superconductor system for Shanghai Electron Beam Ion Trap （EBIT） have been reported in this paper. The adopted measures to improve the system’s performance and experiment results are also described. In order to reduce the consumption of liquid helium

the cryogenic system includes two cooling-shields cooled by two stage G-M refrigerator. The consumption of liquid helium is 1.1 L/h on average in 16 h

the peak of magnetic field strength of superconducting magnet is up to 5.3 T

uniformity is better than 2×10-4 in the range of ±10 mm on the central axis of magnet

and the time decaying ratio of magnet is better than 1×10-4 in 8 h with closed-loop current. All these show that user’s basic demands can be met.

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