Optical characterisation under irradiation of Ce/sup 3+/(Tb/sup 3+/)-doped phosphate scintillating glasses
Optical characterisation under irradiation of Ce/sup 3+/(Tb/sup 3+/)-doped phosphate scintillating glasses
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DOI：
10.1109/nssmic.2000.949153
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发表时间：
2000-10
期刊：
影响因子：
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通讯作者：
S. Baccaro;A. Cecilia;A. Cemmi;G. Chen;E. Mihóková;M. Niki
中科院分区：
文献类型：
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作者：
S. Baccaro;A. Cecilia;A. Cemmi;G. Chen;E. Mihóková;M. Niki
辐射硬度是表征闪烁体的基本参数之一。其原因是电离辐射常常在被照射材料中诱发色心的形成，诱发吸收光谱与闪烁体发射光谱的可能重叠会减少闪烁体发射的光电子数量，从而对探测器的能量分辨率产生负面影响。本文报道了辐照（/sup 60/Co）诱导Ce/sup 3+/ (Tb/sup 3+/)磷酸盐闪烁玻璃在1/spl / 60gy剂量范围内的吸收。考虑到辐射硬度对玻璃基体组成的可能依赖性，对结果进行了讨论。
The radiation hardness is one of the fundamental parameters characterising a scintillator. The reason is that ionising radiation often induces the formation of colour centres in the irradiated material the possible overlap of the induced absorption spectrum with the emission spectrum of the scintillator could reduce the number of photoelectrons emitted by the scintillator, influencing negatively the energy resolution of the detector. In this work, the irradiation (/sup 60/Co) induced absorption of Ce/sup 3+/ (Tb/sup 3+/) phosphate scintillating glasses is reported in the dose range 1/spl divide/60 Gy. Results are discussed by taking into account the possible dependence of radiation hardness on the composition of glass matrix.