Cyogenically Cooled Telescope: IRTS
In order to make infrared observations with
high sensitivity,
the IRTS's telescopeand
focal plane instruments
were cooled down to 2K with super-fluid liquid Helium.
The IRTS was
filled with liquid Helium
at the lauching site of the
HII rocket.
Cross section of IRTS
IRTS Home Page
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