TEMPERATURE COMPENSATION APPARATUS INSIDE DETECTOR FOR RADIATION MONITORING SYSTEM IN NUCLEAR POWER PLANTS

摘要

PURPOSE: A temperature compensating apparatus of a radiation detector for a radiation monitoring system of a nuclear power plant is provided to accurately measure radiation by compensating the errors of an output feature due to a temperature variation in the detector. CONSTITUTION: An inner temperature sensor(103) is formed in a detector. A scintillator detector(101) generates a scintillator by reacting with radiation and converts radiation dosage to quantity of light. A photo multiplier tube(102) collects and amplifies the scintillator generated from scintillator detector and outputs a pulse type signal. An optical pulse radiation light emitting diode(104) emits an optical pulse to the photo multiplier tube. An inner temperature detector(250) detects the temperature of the inner temperature sensor. [Reference numerals] (210) High voltage control unit; (220) LED pulse detector; (230) Radiation pulse amplifier; (240) Optical pulse generator; (250) Inner temperature detector; (300) Automatic channel analyzer; (400) Radiation counting device