ИСТИНА

The registration of two event characteristics, for example, $e$ (energy) and $t$ (time), gives us a two-dimensional experimental distribution $A(e,t)$, where the extraction of the information of interest stumbles upon the absense of the appropriate parametrical model. \\ A significant advantage of using the autocorrelation spectrometer of delayed coincidences is the possibility to determine the scintillator decay time $\tau$ from an energy dependence $E=g(t,\tau)$, which , unlike the classical decay time model $N(t)=f(t,\tau)$, allows us to establish its parametrical correspondance to some elements of the 2-dimensional data and so to estimate $\tau$ by a procedure of the robust fitting which automatically suppresses the impact of parts of data not adequate to the model.\\