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arXiv physics/9907018physics.ins-dethep-ex
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选定的增强和光导纤维材料的辐射硬度的测量

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

摘要:

KURARAY SCSF-78 M漂白纤维和来自KURARAY和pol.hi.tech的透明纤维的辐射硬度研究在不同剂量率条件下进行的质子和电子束。对于高剂量率,进行了光纤光输出的原位测量。在照射后的几个月内,测量所有纤维的光发射和透明度。以高速率辐照到约1 Mrad的纤维明显受损,但在几小时至几周内恢复。使用较小的速率直到相同的积分剂量,不能排除最多30%的增透光纤的光输出的降低。透明纤维在400 krad以下似乎不受影响。纤维覆盖率和辐照气氛对辐照无明显影响。

英文摘要:

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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