A balloon-borne infrared telescope cooled by liquid nitrogen

Details A balloon-borne infrared telescope cooled by liquid nitrogen A balloon-borne infrared telescope cooled by liquid nitrogen

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jajap..14.1041h&link_type=abstract

Japanese Journal of Applied Physics, vol. 14, July 1975, p. 1041-1047.

Astronomy and Astrophysics

Astronomy

1

Balloon-Borne Instruments, Infrared Astronomy, Liquid Cooling, Liquid Nitrogen, Telescopes, Aeronomy, Cadmium Tellurides, Cryogenic Equipment, Polyurethane Foam

Scientific paper

A balloon-borne infrared telescope cooled by liquid nitrogen is described. The telescope was equipped with a CdHgTe detector, a spherical mirror of 23-cm diameter, a baffle system, and a liquid nitrogen container made of polyurethane foam. The telescope was successfully launched on Oct. 2, 1973. On-board information showed that the cryogenic system functioned properly and atmospheric thermal emission of CO2 was detected in the wavelength range of 12 microns and higher. This type of telescope is found useful for infrared astronomy and aeronomy.

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