Journal article

Publication year: 2005

Pages: 155-159

Journal: Cryogenics

Volume number: 45

Issue number: 2

ISSN: 0011-2275

eISSN: 1879-2235

DOI Link: https://doi.org/10.1016/j.cryogenics.2004.08.001

Publisher: Elsevier

Abstract: 
High frequency (30-50 Hz) multi-stage pulse tube coolers that are capable of reaching temperatures close to 20 K or even lower are a subject of recent research and development activities. This paper reports on the design and test of a two-stage pulse tube cooler which is driven by a linear compressor with nominal input power of 200 W at an operating frequency of 30-45 Hz. A parallel configuration of the two pulse tubes is used with the warm ends of the pulse tubes located at ambient temperature. For both stages, the regenerator matrix consists of a stack of stainless steel screen. At an operating frequency of 35 Hz and with the first stage at 73 K a lowest stationary temperature of 19.6 K has been achieved at the second stage. The effects of input power, frequency, average pressure, and cold head orientation on the cooling performance are also reported. An even lower no-load temperature can be expected from the use of lead or other regenerator materials of high heat capacity in the second stage. (C) 2004 Elsevier Ltd. All rights reserved.

Harvard Citation style: Yang, L. and Thummes, G. (2005) High frequency two-stage pulse tube cryocooler with base temperature below 20 K, Cryogenics, 45(2), pp. 155-159. https://doi.org/10.1016/j.cryogenics.2004.08.001

APA Citation style: Yang, L., & Thummes, G. (2005). High frequency two-stage pulse tube cryocooler with base temperature below 20 K. Cryogenics. 45(2), 155-159. https://doi.org/10.1016/j.cryogenics.2004.08.001