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采用Na(Tl)闪烁谱仪用两种方法测量了平均能量为1.25MeV的60Co的γ射线在石蜡样品中发生康普顿散射的散射系数。在完全相同的实验条件下,利用此散射系数标定石蜡模拟油垢厚度,其结果最好一组平均相对误差在1.29%左右。
Scattering coefficients of Compton scattering of 60Co gamma rays having an average energy of 1.25 MeV in paraffin samples were measured by Na (Tl) scintillation spectroscopy using two methods. Under exactly the same experimental conditions, the scattering coefficient was used to calibrate the thickness of simulated greasy grease. The best relative average error was about 1.29%.