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The New Cryogenic Vacuum Chamber and Blackbody Source for Infrared Calibrations at NIST's FARCAL Facility

Published

Author(s)

J B. Fowler, Bettye C. Johnson, Joseph P. Rice, Steven R. Lorentz

Abstract

The Facility for Advanced Radiometric Calibrations [FARCAL] at the National Institute of Standards and Technology [NIST] in Gaithersburg, MD currently comprises the Medium Background Infrared [MBIR] facility and the Training for Calibration Expertise in Radiometry [TraCER]; the latter being a classroom setting. The MBIR is a 120 cm by 180 cm vacuum chamber with an internal cold shroud and an integral roll-out table. The chamber will contain a blackbody source and an absolute cryogenic radiometer [ACR]. Both components are mounted on the roll-out table. Measurements will be performed in the MBIR facility that cannot be accomplished using existing facilities, including the NIST Low Background Infrared [LBIR] facility and the room-temperature non-vacuum radiometric facilities. Initially the MBIR facility will be used for 80 K medium background measurements and 300 K ambient background measurements.
Citation
Metrologia
Volume
35

Keywords

blackbody, calibration, cryogenic, infrared, low-background, radiometry, vacuum

Citation

Fowler, J. , Johnson, B. , Rice, J. and Lorentz, S. (1998), The New Cryogenic Vacuum Chamber and Blackbody Source for Infrared Calibrations at NIST's FARCAL Facility, Metrologia (Accessed July 21, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created January 1, 1998, Updated February 17, 2017