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澳大利亚在建成多个测井仪标定模型之后,又建造了五个标定轻便γ能谱仪的混凝土标定模型。这五个模型是:①本底模型(0.2％K、0.8 ppmU和2.3 ppmTh);该模型的作用是消除标定仪器时的本底影响;②钾模型(钾岩石的含量为4.11±0.5％K,1.0±0.1 ppmU和2.6±0.2 ppmTh);③铀模型(89.5±5.1 ppmU和2.6±1.1 ppm Th);④U-Th混合模型(38.9±1.6 ppmU和95.7±2.6 ppmTh);⑤钍模型(7.8±1.5 ppmU和166.2±4.1 ppmTh)。在浇注模型时采取了混凝土样品,通过对样品进行实验室分析和与其它国家模型相互标定的数据确定了模型的放射性元素含量。利用这套模型除可按含量标定仪器外,还可用剂量单位标定,因为每个模型都按L.Lφvborg给出
After building multiple logging tool calibration models in Australia, five concrete calibration models for portable gamma-ray spectrometers were built. The five models are: ① background models (0.2% K, 0.8 ppmU and 2.3 ppmTh); the role of this model is to eliminate background effects when calibrating the instrument; ② the K model (potassium rock content 4.11 ± 0.5% K , 1.0 ± 0.1 ppmU and 2.6 ± 0.2 ppmTh); uranium models (89.5 ± 5.1 ppmU and 2.6 ± 1.1 ppm Th); U-Th mixed models (38.9 ± 1.6 ppmU and 95.7 ± 2.6 ppmTh); ± 1.5 ppmU and 166.2 ± 4.1 ppmTh). Concrete samples were taken during pouring of the model and the radioactive element content of the model was determined by laboratory analysis of the sample and calibration with other national models. In addition to using this model can be calibrated by content of the instrument, but also dose unit calibration, because each model are given by L.Lvvborg