| 摘要 |
<p>The method involves the airborne mapping of a zone (19) starting from recorded data acquired from an airborne apparatus for different points (15) on a path (17) of the apparatus. The recorded data are read. A predetermined number of energy windows are defined, each of which corresponds at most to the gamma energy of one radioelement. From the display of spectrometric data transferred to a video screen, the number of pulses contained in each predetermined energy window is counted, together with the total number of pulses for each data acquisition point. Some of the accessed data are recorded, as are values of the counts obtained. The data acquisition points are positioned on the video screen and a value is allocated to them which corresponds to the value of the count obtained for a given window or to the value of the total count, following a predetermined colour law. A linear interpolation is carried out between the points so as to obtain a continuous image. Various type of processing are carried out. Application to the location of radioactive sources, particularly in contaminated geographical areas. <IMAGE></p> |
