Application of Wiener Filter and Sparsity Theory for Pulse Unfolding from Scintillator Detector

Abstract

This study introduces an unfolding algorithm that integrates the Wiener Filter and sparsity theory to effectively narrow the width of pulses in time, addressing the challenge of pile-up effects in environments with substantial electronic noise. The algorithm is tested with data from a cosmic ray setup experiment composed of a scintillator and a silicon photomultiplier (SiPM). The algorithm’s performance highlights its potential in improving the consistency of peak positioning and pulse resolution, which are crucial for precise radiation measurement.