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- W2034211552 abstract "Spectrometry utilizing a dispersive element and a multi-element detector array poses several challenges to precise calibration. A classical method of wavelength axis calibration using two spectral lines is inadequate due to the non-linearity of these modern systems. The variation of detector response over the span of the detector array is problematic for the intensity axis calibration. A novel approach to calibrating an Optical Multichannel Analyzer is detailed, as well as test results comparing the assigned and calculated positions of the spectral Hines included in the calibration set. The equipment used is an EGG this method employs a sub-pixel assignment technique. The non-linearity of this axis is compensated by a numerical integration of the centroid data points. The intensity axis involves a standard technique utilizing a calibrated tungsten source. Included is a background discussion of why various lamps with measured brightness temperatures were determined to be inadequate for calibration. The intensity axis calibration is proportional to the photon count rather than energy (joules), the advantage for this method for our implementation is presented." @default.
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- W2034211552 date "1989-07-05" @default.
- W2034211552 modified "2023-09-23" @default.
- W2034211552 title "Calibrating A Detector Array Based Spectroradiometer With Sub-Pixel Precision" @default.
- W2034211552 doi "https://doi.org/10.1117/12.951602" @default.
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