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cryostat
cryostat A device designed to maintain an infrared detector or the low‐noise amplifier of a radio telescope at a very low temperature in order to reduce thermal noise. In infrared telescopes, cryostats can be evacuated vessels known as dewars cooled by liquid nitrogen (down to 77 K) or liquid helium (down to 4 K), and usually contain optical components, filters, and a preamplifier as well as the detector. In radio astronomy they are usually evacuated chambers cooled to c. 12 K by helium-gas refrigerators.
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"cryostat." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "cryostat." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-cryostat.html "cryostat." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-cryostat.html |
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cryostat
cryostat
•Eurocrat • ziggurat • muskrat
•theocrat • jurat • Ballarat • democrat
•technocrat • bureaucrat • aristocrat
•autocrat • plutocrat • babysat
•Comsat • Randstad • Darmstadt
•diktat • habitat • Eisenstadt
•Kronstadt • cryostat • aerostat
•aegrotat • rheostat • haemostat
•thermostat • photostat
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Cite this article
"cryostat." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "cryostat." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O233-cryostat.html "cryostat." Oxford Dictionary of Rhymes. 2007. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-cryostat.html |
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