航空普查中所采用的ACГ-38-Ж、APC和其他类型的辐射仪-分析器,能够对记录的γ辐射的能谱成分作出某些特性鑑定。这种能谱特性是说明岩石特征的一种附加的物理参数,并且在一系列情况下有助于对γ场的测量结果进行地质解释。由于测量结果的整理方法和所用的仪器不够完善(鑑别计数道的灵敏度和稳定度不够),因而不能完全有效地利用这一参数。 The AC-38-Ж, APC, and other types of radiometer-analyzers used in aerial censuses make certain characterizations of the recorded spectral components of gamma radiation. This spectral property is an additional physical parameter that accounts for rock characteristics and can, in a series of circumstances, help to geologically explain the measurement of the γ-field. This method can not be used completely and effectively because the methods of sorting out the measurement results and the instruments used are not perfect enough (the sensitivity and stability of the discrimination counting channel are not enough).