A deconvolution based signal reconstruction capable of piled-up pulse separation

Abstract

This study provides a computationally effective deconvolution algorithm capable to reconstruct piled-up events in scintillating detector systems with high count rate where fully digitized waveforms are available. A fixed-point iteration algorithm is suggested and used to find properties of the signals which are later used during the signal preprocessing stage. The impulse response function is successfully extracted even from heavily piled-up event waveforms using an iterative approach. A methodology for pulse time and amplitude reconstruction is based on a deconvolution algorithm, which is described in details and some results are presented. The presented algorithms are meant to be general and might be successfully applied to other fields with minor to no modifications.