Optimization of an 8K Level High Frequency Pulse Tube Cryocooler

被引：5
|
作者：
Quan, J. [1 ]
Liu, Y. J. [1 ]
Xun, Y. Q. [1 ]
Ma, Y. X. [1 ]
Liang, J. T. [1 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Space Energy Convers Technol, Beijing 100190, Peoples R China
来源：
27TH INTERNATIONAL CRYOGENICS ENGINEERING CONFERENCE AND INTERNATIONAL CRYOGENIC MATERIALS CONFERENCE 2018 (ICEC-ICMC 2018) | 2019年 / 502卷
关键词：
4; K;
D O I：
10.1088/1757-899X/502/1/012024
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
As very low temperature high frequency pulse tube cryocooler is the precondition of many space detection researches, it has been a hot topic in the field of pulse tube cryocooler. Improving the cryocooler's performance is a common goal of researchers. In this paper, the regenerator material and the compressor of the second-stage pulse tube cryocooler as well as the first-stage pulse tube cryocooler are experimentally optimized using a new thermally coupled high frequency pulse tube cryocooler. Finally, more than 20mW of cooling power is achieved at 8K and the electric power decreases from 450W to 300W. The results increase the reliability of the space application of NbN terahertz detectors.
引用
收藏
页数：5
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