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Measurements of the radiation hardness of selected scintillating and light guide fiber materials

E. C. Aschenauer·J. Baehr·R. Nahnhauer·R. Shanidze·D. Fink·K. H. Maier·M. Muller·H. A. Klose·M. Sprenger
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Abstract

Radiation hardness studies of KURARAY SCSF-78M scintillating fibers and clear fibers from KURARAY and pol.hi.tech. performed under different dose rate conditions in proton and electron beams are summarized. For high dose rates in-situ measurements of the fiber light output were done. During several months after irradiation all fibers were measured concerning light emission and transparency. Fibers irradiated at high rates to about 1 Mrad are clearly damaged but recover within a few hours up to several weeks. Using smaller rates up to the same integral dose a decrease of the light output of scintillating fibers of up to 30% can not be excluded. Clear fibers seem to be uneffected up to 400 krad. No significant influence of fiber coverage and atmosphere during irradiation was found.

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E. C. Aschenauer, J. Baehr, R. Nahnhauer, R. Shanidze, D. Fink, K. H. Maier, M. Muller, H. A. Klose, M. Sprenger. 1999-07-13. Measurements of the radiation hardness of selected scintillating and light guide fiber materials. https://arxiv.org/abs/physics/9907018

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