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Proceedings Article

NIST-BMDO transfer radiometer (BXR)

[+] Author Affiliations
Timothy M. Jung, Adriaan C. Carter

Jung Research and Development Corp. (USA)

Steven R. Lorentz, Raju V. Datla

National Institute of Standards and Technology (USA)

Proc. SPIE 4028, Infrared Detectors and Focal Plane Arrays VI, 404 (July 17, 2000); doi:10.1117/12.391755
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From Conference Volume 4028

  • Infrared Detectors and Focal Plane Arrays VI
  • Eustace L. Dereniak; Robert E. Sampson
  • Orlando, FL | April 24, 2000

abstract

An infrared transfer radiometer has been recently developed at the Low-Background Infrared Calibration (LBIR) facility at the National Institute of Standards and Technology (NIST) for the Ballistic Missile Defense Organization (BMDO) program. The BMDO Transfer Radiometer (BXR) is designed to measure the irradiance of a collimated source of infrared light having an angular divergence of less than 1 mrad. It is capable of measuring irradiance levels as low as 10-15 W/cm2 over the spectral range from 2 micrometer to 30 micrometer. The radiometer uses an arsenic-doped silicon blocked impurity band (BIB) detector operated at temperatures below 12 K. Spectral resolution is provided by narrow bandpass interference filters and long-wavelength blocking filters. All the components of the radiometer, which include a mechanical shutter, an internal calibration source and detector, a long baffle section, a spatial filter, two filter wheels and a two- axis detector stage are cooled with an active flow of liquid helium to maintain temperatures below 20 K. A cryogenic vacuum chamber has been built to house the radiometer and to provide mechanical tilt alignment to the source. The radiometer is easily transported to a user site along with its support equipment.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Timothy M. Jung ; Adriaan C. Carter ; Steven R. Lorentz and Raju V. Datla
"NIST-BMDO transfer radiometer (BXR)", Proc. SPIE 4028, Infrared Detectors and Focal Plane Arrays VI, 404 (July 17, 2000); doi:10.1117/12.391755; http://dx.doi.org/10.1117/12.391755


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