OPTICAL SENSOR, GAMMA-RAY DETECTOR, AND POSITRON EMISSION COMPUTER TOMOGRAPHIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an optical sensor, a gamma-ray detector, and a positron emission computer tomographic apparatus that can process light by using a digital signal.SOLUTION: An photosensor according to an embodiment comprises: a photomultiplier tube; an analog-digital converter; and a non-transitory storage unit. The photomultiplier tube receives light and outputs an analog signal corresponding to the received light. The analog-digital converter receives the analog signal, and generates a digital signal from the received analog signal. The storage unit stores parameters calculated during operation of the photomultiplier tube. The photomultiplier tube, analog-digital converter and storage unit are integrated into a single housing.SELECTED DRAWING: Figure 3