每部辐射仪均要用标准源校正。其校正方法已为大家所熟知,不再多述。通常所采用的校正方法的缺点很多。第一,为了校正仪器需要一间比较大的房间或找一块开阔的场地,而且要求周围不应有任何能引起散射的物体。这个条件在冬季比较难于实现,在野外条件下找一间大房间有时也比较困难。如果达不到校正仪器的理想条件,将使仪器测量产生误差。这种校正误差,对定量测定影响很大(如γ测井、γ取样、密度测量 Each radiometer should be calibrated with a standard source. The method of calibration is well-known to all and will not be repeated. The disadvantages of the calibration methods that are usually used are many. First, in order to calibrate the instrument, a relatively large room or an open space is required, and there should be no objects that can cause scattering around. This condition is more difficult to achieve in winter, in the wild conditions to find a large room sometimes more difficult. If you fail to achieve the ideal conditions for calibration of the instrument, will make the measurement error. This correction error, the quantitative determination of a great influence (such as γ logging, γ sampling, density measurement