NDLI: Cryogenic Blackbody Calibrations at the National Institute of Standards and Technology Low Background Infrared Calibration Facility.

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Cryogenic Blackbody Calibrations at the National Institute of Standards and Technology Low Background Infrared Calibration Facility.

Content Provider	Europe PMC
Author	Datla, R. U. Croarkin, M. C. Parr, A. C.
Copyright Year	1994
Abstract	The Low Background Infrared Calibration Facility (LBIR) at the National Institute of Standards and Technology has been in operation for calibration measurements of the radiant power emitted from infrared radiation (IR) sources, such as cryogenic blackbodies, for more than 2 years. The IR sources are sent to NIST by customers from industry, government, and university laboratories. An absolute cryogenic radiometer is used as the standard detector to measure the total radiant power at its aperture. The low background is provided by a closed cycle helium refrigeration system that maintains the inner parts of the calibration chamber at 20 K. The radiance temperature of the blackbody is deduced from the measured power and compared with the blackbody temperature sensor data. The calibration procedures and data analysis are illustrated using the measurements of a typical blackbody.
ISSN	1044677X
Journal	Journal of Research of the National Institute of Standards and Technology
Volume Number	99
PubMed Central reference number	PMC8345260
Issue Number	1
PubMed reference number	37404363
e-ISSN	21657254
DOI	10.6028/jres.099.008
Language	English
Publisher	[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
Publisher Date	1994-01-01
Access Restriction	Open
Rights License	The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
Subject Keyword	blackbody calibrations cryogenic blackbodies cryogenic radiometer electrical substitution radiometry low background infrared radiation calibrations radiomclry
Content Type	Text
Resource Type	Article
Subject	Engineering

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