【摘要】 Ce:YAG闪烁晶体对在脉冲γ射线测量有重要应用,本文研究其γ射线相对能量响应。用Compton散射原理把强60Co源分解成若干单能点γ射线源,测定了国产Ce:YAG闪烁晶体的γ射线相对能量响应,将结果与质能吸收系数的数值计算结果相比较,两者在实验测量不确定范围内符合得很好。结果表明,用质能吸收系数进行无机闪烁晶体的γ射线相对能量响应的数值计算方法可靠,Compton散射原理提供较合适的单能γ射线辐射源以实验刻度无机闪烁晶体的γ射线的相对能量响应的方法也可行,可用于检验数值计算结果的可靠性。更多还原

【Abstract】 Gamma-ray relative energy response of Ce:YAG crystal,which is important for pulsed γ-ray measurement,was studied in this work.The Ce:YAG crystal,which was developed at Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,was aligned point by point with γ-rays scattered from an industrial 60Co line source.The γ-ray relative energy response was calculated using the mass attenuation coefficient.The results show that the numerical calculation method of γ-ray relative energy response is reliable,and the experimental method with multi-energy point γ-ray by Compton scattering is also feasible,that can be used for checking up correctness of the numerical calculation results.更多还原