1. A Balloon-Borne Infrared Telescope Cooled by Liquid Nitrogen
- Author
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Kiichiro Uyama, Tetsuro Nishimura, Koji Ito, Tadayoshi Ono, Toshio Matsumoto, Satio Hayakawa, and Takashi Iijima
- Subjects
Physics ,Infrared astronomy ,Physics and Astronomy (miscellaneous) ,Computer cooling ,business.industry ,Astrophysics::High Energy Astrophysical Phenomena ,Aeronomy ,Infrared telescope ,Astrophysics::Instrumentation and Methods for Astrophysics ,General Engineering ,General Physics and Astronomy ,Curved mirror ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Liquid nitrogen ,law.invention ,Telescope ,Optics ,law ,Thermal ,Optoelectronics ,Astrophysics::Earth and Planetary Astrophysics ,business ,Astrophysics::Galaxy Astrophysics - Abstract
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 the atmospheric thermal omission of CO2 was detected in the wavelength range λ\gtrsim12µm. The telescope of this type is found useful for infrared astronomy and aeronomy.
- Published
- 1975
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