HIGH SPEED REPEATED PULSE LIGHT MEASURING APPARATUS

摘要

PURPOSE:To achieve an analysis of any portion in a streak image of a high speed repeated pulse light in a dynamic range by applying a deflected electric field shifted slightly in the phase from a repetition speed of an incident light so as to extract a portion of the streak image in the direction of a slit. CONSTITUTION:A laser pulse light enters a hematoporphyrin derivative 4 and an excited fluorescence is projected on a photoelectric surface of a streak tube 3 through a slit plate 15. The laser pulse light branched off with a beam splitter 2 is converted into an electrical signal and applied to a deflection electrode 33 through a delay circuit 7 and a driving amplifier 9. While an electron corresponding to the flurorescence of the hematoporphyrin derivative 4 enters a deflected electric field of the deflection electrode 33 at an interval of 10nanosec, the deflected electric field delays by 3X10<-17>sec/pulse in the phase. A photomultiplier tube only multiplies the portion extracted from an opening 11d in an image on a phosphor screen formed on a partial extraction plate 11. Plotting the portion on an XY plotter 14 enables the drawing of a luminance distribution map of the streak image in the sampling number of 10<8>.