PL-ESTIMATES OF FLOW AT POINT TO CALCULATE THE ABSORBED DOSE GENERATED BY RADIONUCLIDES IN AIR
E. N. Donskoy
VANT. Ser.: Mat. Mod. Fiz. Proc 2018. Вып.3. С. 63-69.
The local assessment of the radiological situation caused by radionuclides distributed in atmosphere is the task of a higher importance for the radiation safety analysis. If a radionuclide emits gamma photons, it is required to solve the problem of gamma-radiation transport in a homogeneous air medium with a source of radionuclides, which size (as well as the size of detecting area) is several orders higher than the range of influence of a point source of gammas. (The radionuclide source size is about 100 km, the range of influence of a point source of gammas with energy below 10 MeV doesn´t exceed several hundred meters.) Such situation causes difficulties in solving the problem with traditional methods using local flow estimates at a point. At the same time, this situation is favorable to apply PL-estimates of flow at a point. Keywords: distribution of radionuclides in atmosphere, radiation safety, model of a source of gammas, local estimate of flow at a point, PL-estimate of flow at a point, the absorbed dose calculation method.
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