Novel method for measuring and correcting dead-time using 252Cf neutron source based autocorrelation function in nuclear radiation detection

To solve the problem of dead time loss, a novel method for measuring and correcting dead-time is proposed with the use of autocorrelation function based on a 252Cf -source-driven spectrum analyzing system. The experiment shows that the dead-time of the analyzing system is 40 ns. The dead-time can be obtained directly from the spectrum of autocorrelation with high measuring precision of nanosecond level.