Experimental study of optical fiber sensors for radiation detection level at CERN

Radiation induces damages inside the optical fiber, increasing the attenuation of light caused by defects. Launching short pulses of light and measuring the back-scattered light is possible to measure the damages of the fiber in a distributed way and correlate to the radiation level and temperature alongside the fiber. The result is a distributed sensor for radiation and temperature with spatial resolution of one meter, easy to put in position and remove, economic, light and not voluminous for disposal