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Proceedings Paper

Ceramic 3D printed Joule Thomson mini cryocooler intended for HOT IR detectors
Author(s): A. Shapiro; L. Fraiman; A. Parahovnik
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Paper Abstract

Joule Thomson (JT) Cryocooler is a well-known technology which is widely used in research and industry. The cooling effect is achieved by isenthalpic expansion of the cooling gas in an orifice. A JT cooler has two basic components: a counter flow heat exchanger and an orifice. Due to the fact that the cooler has no moving parts and contains relatively simple components it is a great candidate for miniaturization, and realization with the new additive manufacturing technologies. In the current work we discuss the implementation of 3D ceramic printing as a possible fabrication technology for a JT cooler intended for cooling IR detectors operated at temperature of about 150K. In this paper we present a comprehensive analysis including coolant considerations, heat transfer calculations and realization of the cooler.

Paper Details

Date Published: 5 May 2017
PDF: 13 pages
Proc. SPIE 10180, Tri-Technology Device Refrigeration (TTDR) II, 1018006 (5 May 2017); doi: 10.1117/12.2266313
Show Author Affiliations
A. Shapiro, Rafael Advanced Defense Systems Ltd. (Israel)
L. Fraiman, Rafael Advanced Defense Systems Ltd. (Israel)
A. Parahovnik, Rafael Advanced Defense Systems Ltd. (Israel)

Published in SPIE Proceedings Vol. 10180:
Tri-Technology Device Refrigeration (TTDR) II
Richard I. Epstein; Bjørn F. Andresen; Tonny Benschop; Joseph P. Heremans; Sergey V. Riabzev; Mansoor Sheik-Bahae, Editor(s)

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