Absolute Calibration of Light Sources in the Vacuum Ultraviolet by Means of the Synchrotron Radiation of DESY.
With the synchrotron radiation of DESY (Deutsches Elektronen Synchrotron) as a primary standard light source, secondary standard light sources have been calibrated in the spectral range 1500-2700 A. By this method, the accuracy of the intensity of the calibrated lamp is about 4%.
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