Fig. 7
From: Deadtime effects in quantification of 177Lu activity for radionuclide therapy
Deadtime correction factors as a function of the observed count rate. For figures a, b, and c, the observed count rates are those which were recorded in the energy window corresponding to the presented curve (see legend). d DTCF corresponding to PP. Typical values of full spectrum count rates in patient studies (indicated by an arrow) range from 50 to 70 kcps (~ 0.6 × 105 cps on this graph)