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。
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.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2005年第9期91-97,共7页
Journal of Mechanical Engineering
基金
国家自然科学基金(50476086)中国科学院王宽诚博士后工作奖励基金资助项目。
