First Flight of ARCADE CMB Instrument

Details First Flight of ARCADE CMB Instrument First Flight of ARCADE CMB Instrument

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.0604k&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #06.04; Bulletin of the American Astronomical Society, Vol. 34, p.649

Physics

Optics

Scientific paper

ARCADE (Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission) is a balloon-borne cryogenic instrument to measure the spectrum of the cosmic microwave background radiation at centimeter wavelengths. ARCADE compares the sky to an on-board external blackbody target to measure small differences between the sky spectrum and a known blackbody. The instrument uses a novel open-aperture cryogenic design to minimizes sources of systematic error. In particular, there are no windows between the cold (2.7 K) optics and the atmosphere during observations. We discuss the cryogenic performance of ARCADE during its first flight in November 2001. ARCADE is funded through NASA RTOP 685-344-01-05-01

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