26 April 1989 A Two-Defect Model For Radiation-Induced Attenuation In Multimode Fiber
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The growth and recovery rates of X-ray and gamma-ray-induced infrared adsorption in a germanium-silicate multimode fiber can be qualitatively explained by assuming that two types of color centers are responsible for the absorption. One color center (type A) recovers at a fast rate and reaches a steady state concentration during irradiation. The second color center recovers at a slow rate and shows an increase in concentration during irradiation. The formation of color center type A can be suppressed during irradiation by the addition of molecular hydrogen.
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K. H. Sandhage, K. H. Sandhage, P. L. Bocko, P. L. Bocko, B. H. W. S. DeJong, B. H. W. S. DeJong, } "A Two-Defect Model For Radiation-Induced Attenuation In Multimode Fiber", Proc. SPIE 0992, Fiber Optics Reliability: Benign and Adverse Environments II, (26 April 1989); doi: 10.1117/12.960035; https://doi.org/10.1117/12.960035

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