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由于在地质一物探的工作中采用航空伽玛能谱测量方法测定岩石表层中的铀、钍、钾含量,因此要求研究一种简单、快速计算含量的方法。用三道航空伽玛谱仪工作的经验表明,对航空伽玛能谱测量资料进行加工整理,需要进行大量的计算。计算的速度和精度直接影响到能谱测量方法的效果。在1963年的试验性生产过程中,曾按相对强度方法计算了铀、钍、钾含量。按公式(1和Ia)分别对伽玛场的本底值和异常值计算了含量:
Because of the use of aerial gamma-ray spectrometry for the determination of uranium, thorium and potassium in the rock surface during geophysical prospecting, a simple and rapid method of calculating the content is demanded. Experience with three airborne Gamma spectrometers has shown that a large amount of calculations are required to machine and process aerial gamma spectrometry data. The speed and accuracy of the calculation have a direct impact on the effectiveness of the energy spectrum measurement method. During the experimental production in 1963, uranium, thorium and potassium were calculated by relative intensity method. The contents of the background and outliers of the gamma field are calculated according to the formulas (1 and Ia) respectively: