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DESIGN, FABRICATION, AND ASSEMBLY OF A HOLLOW-CORE FIBER-BASED MICRO CRYOGENIC COOLER

Published

Author(s)

James C. Booth, Mu Hong Lin, Peter E. Bradley, H.-j Wu, Ray Radebaugh, Y.C. Lee

Abstract

One of the smallest Joule Thomson (J-T) micro cryogenic coolers (MCC) utilizing a hollow-core fiberbased heat exchanger (HX) is designed, fabricated, assembled and tested. Techniques that control mask material etching are developed to fabricate a multi-layer silicon structure on HX- coupling manifolds. A segmental metal coating is applied on the fibers and the capillary for solderable areas and reduced radiation and conduction heat transfer. With 16:1 pressure ratio mixed refrigerants, a 140 K stable temperature and 76 K transient temperature at cold head are demonstrated.
Citation
IEEE Xplore Digital Library

Keywords

Micro cryogenic cooler, Joule Thomson cryocooler, hollow-core fiber, micro heat exchanger

Citation

Booth, J. , , M. , Bradley, P. , Wu, H. , Radebaugh, R. and Lee, Y. (2009), DESIGN, FABRICATION, AND ASSEMBLY OF A HOLLOW-CORE FIBER-BASED MICRO CRYOGENIC COOLER, IEEE Xplore Digital Library (Accessed March 5, 2024)
Created June 21, 2009, Updated May 1, 2019