Spectral radiance standard transfer for an integrating sphere as a radiation source in the ultraviolet band

Abstract We developed a new source, having uniform spectral radiance, for large-aperture UV integrating sphere with pressed polytetrafluoroethylene coating. Since lamp panel systems have high uncertainty due to low signal-to-noise ratio at 250 nm, transfer the radiance scale from nm 350 we and calibrated filter radiometer based on solar blind phototube. The was obtained via model of source recursive estimation parameters. A standard FEL validated usage radiometer. Finally, calibrate source. results show that is five times top-of-the-atmosphere irradiance, expanded 4.7%.