A simulation study for a cost-effective PET-like detector system intended to track particles in granular assemblies

作     者：Josephine Oppotsch Antonios Athanassiadis Miriam Fritsch Fritz-Herbert Heinsius Thomas Held Nikoline Hilse Viktor Scherer Matthias Steinke Ulrich Wiedner Josephine Oppotsch;Antonios Athanassiadis;Miriam Fritsch;Fritz-Herbert Heinsius;Thomas Held;Nikoline Hilse;Viktor Scherer;Matthias Steinke;Ulrich Wiedner

作者机构：Ruhr-Universität BochumInstitut für Experimentalphysik I44801 BochumGermany Ruhr-Universität BochumLehrstuhl für Energieanlagen und Energieprozesstechnik44801 BochumGermany 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2024年第84卷第1期

页      面：117-125页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：funded by the DeutscheForschungsgemeinschaft(DFG German Research Foundation)through 422037413-CRC/TRR 287"BULK-REACTION" 

主　　题：Positron emission particle tracking Geant4 Monte Carlo method Time-of-flight Plastic scintillators Silicon photomultipliers(SiPMs) 

摘      要：Since many industrial applications rely on the processing of densely packed and moving granular ma-terial,obtaining bulk internal information on the particle movement inside the reactors is of great *** information can be delivered by Positron Emission Particle Tracking(PEPT).By marking pellets with a positron-emitting radioisotope,the position of these tracer particles can be determined via the time-of-flight differences of the emitted gamma-ray *** current paper proposes a PET-like detector system based on cost-effective organic plastic scintillators instead of the more common but expensive inorganic *** system is currently under construction and was tested for its resolution and efficiency in this simulation *** Monte Carlo simulations and the software toolkit Geant4,three different geometries(an empty glass box,a generic grate system,and a cubic box of 1 m3 completely filled with pellets)were investigated,leading to a spatial resolution in the millimeter range and an efficiency,defined as the ratio of reconstructed decay locations to simulated decays,of 2.7%,1.4%,and 0.3%.