نوع مقاله : مقاله پژوهشی
نویسندگان
1 1- گروه مهندسی هسته‌ای، دانشکده مهندسی انرژی، دانشگاه صنعتی شریف 2- پژوهشکده کاربرد پرتوها، پژوهشگاه علوم و فنون هسته‌ای
2 مدیر گروه مهندسی هسته ای- دانشکده مهندسی انرژی- دانشگاه صنعتی شریف
3 پژوهشکده کاربرد پرتوها، پژوهشگاه علوم و فنون هسته‌ای، صندوق پستی: 1339-14155، تهران ـ ایران
4 پژوهشگاه علوم و فنون هسته ای، پژوهشکده کاربرد پرتوها
کلیدواژه‌ها
موضوعات
عنوان مقاله English
نویسندگان English
This study focuses on evaluating and optimizing the arrangement of photomultiplier tubes (PMTs) in a plate plastic scintillator detector for applications in position-sensitive detection of radioactive sources. To achieve this, scintillation light processes within the detector were modeled and analyzed using Monte Carlo simulations implemented in the Geant4 toolkit. The research examines three distinct PMT configurations: a central configuration (PMTs placed at the center of each side of the detector), an asymmetric configuration (PMTs arranged unevenly with varying distances across the detector surface), and a corner configuration (PMTs positioned at the corners of the detector). Statistical analysis of the results indicates that the central configuration yields the best performance, with minimal errors: RMSE = 1.51 cm, MAE = 1.26 cm, MRE = 7.03%, and a correlation coefficient R = 0.997. In comparison, the second and third configurations demonstrate reduced accuracy in source localization. These findings suggest that an optimized PMT configuration can significantly enhance the precision and efficiency of detection systems, making them particularly effective for spatially sensitive applications in identifying and localizing radioactive sources.
کلیدواژه‌ها English
