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- W2017541789 abstract "The NASA Goddard Space Flight Center (GSFC) Radiation Calibration Facility (RCF) maintains several large integrating sphere sources covering the visible and near infrared wavelength range. Two critical requirements of an integrating sphere source are short and long-term operational stability and repeatability. Monitoring the source is essential in determining the origin of systemic errors, thus increasing confidence in source performance, and quantifying repeatability. If monitor data falls outside the established parameters, this is an indication that the source requires maintenance or re-calibration against the National Institute of Science and Technology (NIST) irradiance standard. The GSFC RCF has developed a Filter Radiometer Monitoring System (FRMS) to continuously monitor the performance of its integrating sphere calibration sources in the 400-2400nm region. Sphere output change mechanisms include lamp aging, coating (BaSO<sub>4</sub>) deterioration, and ambient water vapor level. The FRMS wavelength bands are selected to quantify changes caused by these mechanisms. The FRMS design and operation is presented, as well as data from monitoring three of the RCF's integrating sphere sources." @default.
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- W2017541789 date "2009-08-20" @default.
- W2017541789 modified "2023-10-17" @default.
- W2017541789 title "Development of a filter radiometer monitor system for integrating sphere sources" @default.
- W2017541789 doi "https://doi.org/10.1117/12.827721" @default.
- W2017541789 hasPublicationYear "2009" @default.
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