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

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

1999-07-13

arxiv.org/abs/physics/9907018v1

Physics

Instrumentation and Detectors

14 pages, 7 figures

Scientific paper

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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