| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation detector using an optical fiber and realizing dose rate measurement in a wide dynamic range.SOLUTION: To solve the abovementioned problem, a radiation measuring apparatus of the present invention comprises: a counting rate meter counting pulses output from a photodetector and deriving counting rate temporal transition data; a waveform analyzer determining an output plateau part of the counting rate temporal transition data derived by the counting rate meter; and a dose rate arithmetic unit calculating a dose rate from a measurement counting rate of the output plateau part of the counting rate temporal transition data determined by the waveform analyzer, the radiation measuring apparatus being configured so that stimulus light is continuously emitted from a light source to a photostimulable phosphor element (OSL element) during irradiation of radiations, and the dose rate is calculated by the dose rate arithmetic unit during the irradiation of the stimulus light and on the basis of the measurement counting rate of the output plateau part of the counting rate temporal transition data and a preset dose rate conversion factor.SELECTED DRAWING: Figure 1 |
