Evaluation of UV Optical Fibers Behavior under Neutron Irradiation

摘要

Degradation of UV transmitting optical fibers under nuclear reactor neutron exposure is reported. Four type of optical fibers (solarization resistant, H2-loaded;UV transmission standard OH;UV enhanced transmission, high OH, H2-loaded;high OH, deep UV enhanced) were exposed to neutron fluences up to 4 x 1017 n/cm2. The optical transmission was measured off-line over the 200 nm – 900 nm spectral range and the build-up of color centers was monitored.