• Analysis of Multi-Stage Joule-Thomson Microcoolers 

      Cao, H. S.; Lerou, P. P. P. M.; Mudaliar, A. V.; Holland, H. J.; Derking, J. H.; Zalewski, D. R.; ter Brake, H. J. M. (Georgia Institute of TechnologyICC Press, 2008-05)
      Microcoolers machined from glass wafers based on Joule-Thomson (J-T) expansion have been investigated for many years at the University of Twente. After successful development of singlestage J-T microcoolers with a cooling ...
    • Compact Linear Split Stirling Cryogenic Cooler for High Temperature Infrared Imagers 

      Veprik, A.; Zehtzer, S.; Pundak, N.; Riabzev, S (Georgia Institute of TechnologyICC Press, 2008-05)
      Novel high-definition night vision imagers are being enabled by new high-temperature infrared detectors that operate at elevated temperatures ranging from 95K to 200K; these have performance indices comparable with those ...
    • Development of a Miniature Fast Cool Down J-T Cryocooler 

      Tzabar, N.; Lifshits, I. (Georgia Institute of TechnologyICC Press, 2008-05)
      One major advantage of Joule-Thomson (J-T) cryocoolers over other cryocoolers is the ability to achieve a very fast cool-down, in the range of only a few seconds. The main fluid is chosen according to the desired cooling ...
    • Impact of Small Regenerator Structural Flaws on the Performance of Miniature Pulse Tube Cryocoolers 

      Conrad, T. J.; Ghiaasiaan, S. M. (Seyed M.); Kirkconnell, Carl Scott; Crittenden, Thomas M. (Georgia Institute of TechnologyICC Press, 2008-05)
      Miniature cryocoolers are suitable for space applications and installation in portable devices. They can also be useful as final stages for applications where small cooling loads must be carried at temperatures lower than ...
    • Progress in Joule-Thomson Microcooling at the University of Twente 

      Derking, J. H.; Zalewski, D. R.; Garcia, M.; Holland, H. J.; Mudaliar, A. V.; Cao, H. S.; Lerou, P. P. P. M.; ter Brake, H. J. M. (Georgia Institute of TechnologyICC Press, 2008-05)
      The development of miniaturized Joule-Thomson (JT) coolers has been an ongoing research topic at the University of Twente for many years. In the current research, a new run of singlestage JT microcoolers with gross cooling ...
    • Simulation of Boundary Layer Effects in the Pulse Tube of a Miniature Cryocooler 

      Conrad, T. J.; Ghiaasiaan, S. M. (Seyed M.); Kirkconnell, Carl Scott (Georgia Institute of TechnologyICC Press, 2008-05)
      As pulse tube cryocoolers are miniaturized, boundary layer effects in the pulse tube may become more important than they are for larger refrigerators. Nearly uniform flow in the pulse tube is necessary for efficient cooling, ...
    • SITP’s Miniature Coaxial Pulse Tube Cryocooler 

      Dang, H. Z.; Wang, L. B.; Wu, Y. N. (Georgia Institute of TechnologyICC Press, 2008-05)
      A single-stage miniature coaxial pulse tube cryocooler (PTC) has been developed in Shanghai Institute of Technical Physics, Chinese Academy of Sciences (SITP/CAS) to serve as a perfect substitute for an existing Stirling ...
    • Space Micro Pulse Tube Cooler 

      Nguyen, T.; Petach, M.; Michaelian, M.; Raab, J.; Tward, E. (Georgia Institute of TechnologyICC Press, 2008-05)
      The Northrop Grumman space micro pulse tube cooler (micro) is a split configuration cooler incorporating a coaxial cold head connected via a transfer line to a vibrationally balanced back to back linear compressor. The ...
    • A Study of a Miniature In-Line Pulse Tube Cryocooler 

      Sobol, S.; Katz, Y.; Grossman, G. (Georgia Institute of TechnologyICC Press, 2008-05)
      A miniature pulse tube cryocooler has been designed and tested in our laboratory. The main part of the cryocooler, consisting of an in-line assembly of aftercooler, regenerator, cold heat exchanger, buffer tube and hot ...