PROBE CONSTRUCTION FOR MEASURING ULTRAVIOLET-A RADIATION

Data of a glass filter combination converting the spectral responsivit y of the GaP photoelement to the window-function cutting off the UV-A band and a probe structure realizing the cosine character directional response are given. Systems for measuring the spectral characteristics of the photoelement and the filters, and for measuring the directiona l characteristic of the probe, as well as the software that optimizes the thicknesses of the filters for reaching the minimal integral error are touched on.