  With reaching to extremely high intensities of heavy-ion beams new
requirements for the detection system of the Dubna Gas-Filled Recoil Separator
(DGFRS) will definitely be set. One of the challenges is how to apply the
active correlations method to suppress beam associated background products
without significant losses in the whole long-term experiment efficiency value.
Different scenarios and equations to develop the method according this
requirement are under consideration in the present paper. The execution time to
estimate the dead time parameter associated with the optimal choice of the
life-time parameter is presented.
