AUTHOR=Lee Yujin , Kim Jinyoung , Koh Byoung-cheol , Yoon Young Soo , Ha Chang Hyon 

TITLE=Pulse shape discrimination in an organic scintillation phoswich detector using machine learning techniques

JOURNAL=Frontiers in Physics

VOLUME=12

YEAR=2024

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2024.1361608

DOI=10.3389/fphy.2024.1361608

ISSN=2296-424X

ABSTRACT=<p>We developed machine learning algorithms for distinguishing scintillation signals from a plastic-liquid coupled detector known as a phoswich. The challenge lies in discriminating signals from organic scintillators with similar shapes and short decay times. Using a single-readout phoswich detector, we successfully identified <italic>γ</italic> radiation signals from two scintillating components. Our Boosted Decision Tree algorithm demonstrated a maximum discrimination power of 3.02 ± 0.85 standard deviation in the 950 keV region, providing an efficient solution for self-shielding and enhancing radiation detection capabilities.</p>