Fibers and sensors for monitoring nuclear power plants operation

Abstract

The radiation resistant sensor system for measuring deformations of the fuel channels of the RBMK-1000 nuclear power reactor is by now developed and tested. Concept of the system is the application of metal-coated radiation resistant nitrogen-doped-silica-core fiber and Bragg gratings written in it. Performance of the fiber and sensor elements measured in conditions of the extreme radiation environment inside core of operating nuclear reactors is being reported.