Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period

摘要

The material is irradiated with radiation of a wavelength to stimulate flourescence in the material and of a strength sufficient to bleach the material. Detectors pick up fluorescent emission produced during bleaching by the radiation and generate a signal with a parameter proportional to the instantaneous value of the intensity of fluorescent emission. The time interval required for the fluorescent emission to face to a predetermined fraction of its initial intensity is measured. The fluorescent emission signal is integrated over this time interval.