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Thermal Analysis of a Cryochamber for an Infrared Detector Considering a Radiation Shield  

Kim Young-Min (Graduate School, Kookmin University)
Kang Byung-Ha (School of Mechanical & Automotive Engineering, Kookmin University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.18, no.8, 2006 , pp. 672-677 More about this Journal
Abstract
The steady cooling characteristics of a cryochamber for infrared (IR) detector have been investigated analytically, considering radiation shields. The thermal modeling considers the conduction heat transfer through cold finger, the gaseous conduction due to out-gassing, and the radiation heat transfer. The cooling load of the cryochamber is obtained by using a fin equation. The results obtained indicate that the gaseous conduction plays an important role in determining the steady cooling load. The steady cooling load is increased as the gas pressure is increased. It is also found that the cooling load is substantially decreased with a radiation shield. The most thermal load of a cryochamber occurs through the cold finger.
Keywords
Cryochamber; IR detector; Radiation shield;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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