DocumentCode
3063247
Title
Terahertz calorimetry for the Herschel Space Observatory
Author
Klaassen, T.O. ; Hovenier, J.N. ; Adam, A.J.L. ; Fischer, J. ; Jakob, G. ; Poglitsch, A. ; Redlich, B.
Author_Institution
Kavli Inst. of Nanosci. Delft, Delft Univ. of Technol., Netherlands
fYear
2004
fDate
27 Sept.-1 Oct. 2004
Firstpage
815
Lastpage
816
Abstract
Terahertz laser calorimetry has been employed to measure the emissivity of samples of the Herschel telescope mirror at T=77 K, and the absorptivity of absorbers meant for the PACS and HIFI instruments at T=10 K. As a spin-off, a simple broadband absolute power meter has been developed.
Keywords
astronomical instruments; astronomical techniques; calorimetry; emissivity; mirrors; power meters; 10 K; 77 K; HIFI instruments; Herschel Space Observatory; Herschel telescope mirror; PACS; broadband absolute power meter; emissivity measurement; photoconductor array camera and spectrometer; terahertz laser calorimetry; Aerospace materials; Coatings; Instruments; Observatories; Optical sensors; Optical surface waves; Picture archiving and communication systems; Resistance heating; Telescopes; Temperature sensors;
fLanguage
English
Publisher
ieee
Conference_Titel
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN
0-7803-8490-3
Type
conf
DOI
10.1109/ICIMW.2004.1422344
Filename
1422344
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