RADIATION DISTRIBUTION MEASURING INSTRUMENT

摘要

PURPOSE:To obtain real-time distribution data in a building in complicate internal structure with various arranged bodies by sending and receiving measurement data optically between a radiation measurement part and an optical transmission/reception part and measuring the radiation distribution in an area according to data which are gathered and processed. CONSTITUTION:A nuclear reactor 2 is installed at the center position of nuclear reactor containment 1 and plural sensors 3 are arranged in a measured object area at the periphery of the nuclear reactor 2. Those sensors 3 measure the dosage of radiation at the periphery of a radiation detection part, and sends and receives commands and measurement data through an optical communication mechanism which has slave transmitting and receiving stations 4a - 4d and a master transmitting and receiving station 5 by using a light signal. Then the transmitting and receiving stations 4a - 4d send a request command for the detection and measurement of the radiation and the transmission of its data to the sensors 3 under control according to commands of the transmitting and receiving station 5 and the data are sent to a host computer 6 through the transmitting and receiving station 5. This computer 6 gathers and processes the data to measure the radiation distribution in the area according to the data.