INVESTIGATION OF VERTICAL MIGRATION OF ALPHA-EMITTING NUCLIDES IN SOILS FOR SOUTHERN REGIONS OF THE REPUBLIC OF BYELARUS

An investigation of vertical distribution of alpha-emitting nuclides f or various types of soils using solid state nuclear track detectors (S SNTD) has been carried out. As SSNTD the DNC-film was used. Experiment al system for measurement of total alpha activity in the samples of so ils, including devices and equipment for selection of probes, expositi on, chemical etching of detectors, automated accounting of tracks has been developed. The method of determination of specific activity of al pha emitting nuclides has been created. A comparison results of measur ements with the method pointed out and radiochemical method as well as x-y-spectrometry method has been carried out.