Investigations of radiation induced transient absorption and emission in the quartz-polymer optical fiber

The radiation hardness properties of fused-silica core and polymer-clad optical fibers (OF) are studied using intense bremsstrahlung gamma sources in situ. The post-irradiation degree of recovery in minute time scales as a function of total integrated dose is used for separation of stable and unstable attenuation components. The gamma induced emission of OF are measured and analyzed