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Cryogenic Telescope On The Infrared Astronomical Satellite (IRAS)

Low, F. J. and Beichman, C. A. and Gillett, F. C. and Houck, J. R. and Neugebauer, G. and Langford, D. E. and Walker, R. G. and White, R. H. (1984) Cryogenic Telescope On The Infrared Astronomical Satellite (IRAS). In: Infrared Technology IX. Proceedings of SPIE. No.430. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 288-296. ISBN 0892524650. https://resolver.caltech.edu/CaltechAUTHORS:20170228-161115455

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Abstract

The Infrared Astronomical Satellite (IRAS) has completed an unbiased all-sky survey at wavelengths from 10 to 100 µm. The design and performance of the focal plane array is described with emphasis on in-orbit measurements of the sensitivity and stability. In the four broad spectral bands centered at 12, 25, 60 and 100 um the system NEFD values are, in Jy/Hz^(1/2), 0.03, 0.025, 0.046 and 0.21 respectively (Jansky = 1E-26 w/m^2/Hz). For point sources, a single scan at the survey rate of 3.8 arcmin/sec yields limiting flux densities at the 3 sigma confidence level of 0.36 , 0.30, 0.39 and 1.2 Jy. The DC stability of the JFET amplifiers and the excellent off-axis rejection of the telescope permit total flux meaurements of extended infrared emission at levels below 1 E 6 Jy/sr. Response of the extrinsic silicon and germanium photodetectors to ionizing radiation is described.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.936400DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1236240PublisherArticle
Additional Information:© 1984 SPIE--The International Society for Optical Engineering. The IRAS system performance stands as a lasting tribute to the dedication and skills of its designers and builders. The Infrared Astronomical Satellite was developed and is operated by the Netherlands Agency for Aerospace Programs (NIVR), the U.S. National Aeronautics and Space Administration (NASA) and the U.K. Science and Engineering Research Council (SERC).
Funders:
Funding AgencyGrant Number
Netherlands Agency for Aerospace Programs (NIVR)UNSPECIFIED
NASAUNSPECIFIED
Science and Engineering Research Council (SERC)UNSPECIFIED
Series Name:Proceedings of SPIE
Issue or Number:430
Record Number:CaltechAUTHORS:20170228-161115455
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170228-161115455
Official Citation:F. J. Low ; C. A. Beichman ; F. C. Gillett ; J. R. Houck ; G. Neugebauer ; D. E. Langford ; R. G. Walker and R. H. White "Cryogenic Telescope On The Infrared Astronomical Satellite (IRAS)", Proc. SPIE 0430, Infrared Technology IX, 288 (January 9, 1984); doi:10.1117/12.936400; http://dx.doi.org/10.1117/12.936400
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74611
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:01 Mar 2017 16:26
Last Modified:03 Oct 2019 16:40

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