• CN:11-2187/TH
  • ISSN:0577-6686

›› 2005, Vol. 41 ›› Issue (9): 91-97.

• 论文 • 上一篇    下一篇

用于冷却HTc SQUIDs的脉冲管制冷机系统的设计分析

党海政;周远;梁惊涛   

  1. 中国科学院理化技术研究所
  • 发布日期:2005-09-15

ANALYSIS AND DESIGN OF THE PULSE TUBE CRYOCOOLER SYSTEM FOR COOLING HTc SQUID

Dang Haizheng;Zhou Yuan;Liang Jingtao   

  1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences
  • Published:2005-09-15

摘要: 设计出一套以冷却HTc SQUIDs(高温超导量子干涉仪)为目的的基于Stirling型同轴脉冲管制冷机的低噪声低温系统并进行了系统化的试验。为消除制冷机产生的复杂干扰并实现与器件的直接耦合,所有处于SQUIDs拾波线圈附近的制冷机部件都由无磁、非金属和电绝缘的材料制作。详细描述了制冷机部件材料的选择以及制冷系统的设计与优化,并对系统的综合性能进行了分析与评价。初步试验显示系统的制冷性能和干扰特性满足冷却HTc SQUIDs的基本要求。

关键词: Stirling型脉冲管制冷机, 低温系统, 高温超导量子干涉仪

Abstract: A portable low-noise cryogenic system based on Stirling-type co-axial pulse tube cryocooler (PTC) for cooling HTc SQUIDs is designed and systematically tested. All components of the PTCs in the vicinity of SQUIDs pick-up loops are made of non-magnetic and non-metallic materials to eliminate complicated interference and realize direct couple with SQUIDs. The selections of the materials for the PTCs, the design and optimization of the system are described in detail, and the analysis and evaluation of the performance are presented. The preliminary experiments indicate that the cooling performance and interference characteristics of the system meet the basic requirements.

Key words: Cryogenic system, HTc SQUIDs, Stirling-type pulse tube cryocooler

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