高注量质子束辐照下YAG：Ce和GGG：Ce闪烁晶体的光学性质
Optical properties of YAG:Ce and GGG:Ce scintillation crystals irradiated with a high fluence proton beam
摘要：
本文报道了YAG：Ce和GGG：Ce石榴石晶体在能量为660 MeV、注量高达8.9 $\times$ × 10 $^{14}$质子/cm $^2$的质子束辐照后的光学性质的研究。发现两种晶体在其自身发光区的透明度下降不超过7%。YAG：Ce样品在辐照后一年测得的光产额下降了约35%。
英文摘要：
In this paper, we report on the study of the optical properties of YAG:Ce and GGG:Ce garnet crystals after irradiation in a 660~MeV proton beam with a fluence up to 8.9$\times$10$^{14}$ protons/cm$^2$. We found that the transparency of both crystals fell by no more than 7\% in the region of their own luminescence. The light yield of a YAG:Ce sample, measured one year after irradiation, dropped by about 35\%.
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