Remote fiber optic sensor for monitoring the radiological situation

Abstract

The necessity of remote monitoring the radiological situation in the different areas of nuclear power plants, adjacent territories, etc. is sustained. One of the most important conditions for this control is the duration of the system work (for ten or more years) without human intervention (only in a special case). It is noted that a feature of this environmental monitoring for the presence of radiation is the ability to transmit information over long distance in real time without distortion. And constant receipt of information about the value of the exposure dose in the sensor area is also important. In a case of using the system of a large number of sensors, there are no problems information processing, because it is contained in the optical signal. The design of the fiber optic communication line with using the fiber optic sensor is proposed. The measurement limits of the exposure dose of radiation are marked. The results of experimental researches of various fibers for using in these sensors are presented. The method of radiation control with their use is determined.