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研究了通过掺杂得到的SrSO4 :Eu (0 1mol% )的粉末样品的光释光 (OSL)特性 .用90 Sr的 β射线辐照 0 116—1 16kGy后 ,测定了恒定光源激发的光释光发光曲线 (CW_OSL)和线性光源激发的光释光发光曲线 (LW_OSL) ,对发光曲线分析均得到了四种陷阱成分 .采用复合作用响应函数得到SrSO4 :Eu辐射剂量响应为线性 亚线性 .测量了温度对OSL信号的影响 ,结果表明OSL信号的温度稳定性很好 ,最灵敏读出温度约为 180℃ ,说明这时OSL信号来自热激发和光激发的共同作用 .用6 0 Coγ辐照 10 0Gy后 ,测量了热释光 (TL)三维光谱 ,确定了发光波长主要位于375nm ,可以确定这是来自于Eu2 + 能级跃迁的发光
The light-induced (OSL) properties of SrSO4: Eu (0 1mol%) powder samples obtained by doping were studied. After the light emission of 0 116-1 16kGy with β-rays of 90 Sr, the light-induced Light emission curve (CW_OSL) and linear light source light-emitting luminescence curve (LW_OSL), the luminescence curve analysis of the four trap components obtained by the composite response function obtained SrSO4: Eu radiation dose response linear sublinearity measurement The effect of temperature on the OSL signal shows that the temperature stability of the OSL signal is very good and the most sensitive reading temperature is about 180 ° C. This indicates that the OSL signal comes from the combination of thermal excitation and photoexcitation. After 0 Gy, the thermoluminescence (TL) three-dimensional spectrum was measured, and the luminescence wavelength was determined to be mainly at 375 nm, it can be confirmed that this is a luminescence from the Eu2 + level transition