Study of a full-digital multi-waveform nuclear pulse signal generator.

The traditional nuclear pulse signal generator outputs the nuclear pulse signal of specific waveform according to the input pulse amplitude probability distribution and counting rate, following the signal output laws of radiation detector in both pulse amplitude and time interval. However, the output waveform is generally regulated by an analog circuit, with the single waveform and difficult parameter adjustment. In this study, the digital C-R and R-C filters were explored, a cascading digital C-R or R-C filter algorithm was proposed, realizing multiple pragmatic nuclear pulse signal outputs through the serial or parallel connection of multiple digital filters. The actual test results show that the nuclear pulse signal generator constructed by this algorithm can simulate the nuclear pulse signals under different detectors and counting rates, thus expanding the scope of application and improving the flexibility of digital nuclear pulse signal generators.