Savidou, A.Ioannidou, A.Markopoulos, A.Mavrikis, D.The present work concerns a preliminary study for development of a technique for radiological characterization and segregation of raw historical radioactive waste in different management routes. The efficiency of a 3x3 NaI (Tl) detector for a contaminated cylindrical pipe - detector configuration was evaluated by Monte Carlo simulations performed by using the MCNP code. The efficiency for detector source configuration as well as the measurement bias due to possible inhomogeneity in the distribution of the activity were examined for cylindrical pipes of different densities and dimensions. Cylinders of three different densities made by Pb, Fe, Al were examined. All studied cylinders keep the same ratio between length, diameter and thickness, although the absolute values are different, in order to study the difference in efficiencies of similar geometric objectsapplication/pdf10.12681/hnps.3214https://eproceedings.epublishing.ekt.gr/index.php/hnps/article/view/3214engHellenic Nuclear Physics Society (HNPS)Πνευματική ιδιοκτησία (c) 2021 D. Mavrikis, A. Markopoulos, A. Ioannidou, A. SavidouAnnual Symposium of the Hellenic Nuclear Physics Society2654-00882654-007XAnnual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 27 (2019): HNPS2019; 203-206HNPS Advances in Nuclear Physics; Vol. 27 (2019): HNPS2019; 203-206Radiological Characterization of Contaminated Pipes of Different Dimensions and Densitiesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion2021-04-19Πυρηνική φυσικήNuclear Physicsisi - Physics, Nuclear includes resources on the study of nuclear structure, decay, radioactivity, reactions, and scattering. Resources in this category focus on low-energy physics. High-energy physics is covered in the PHYSICS, PARTICLES & FIELDS category.Άρθρο συνεδρίουConference articleΕπιστημονικό άρθροScientific articleHellenic Nuclear Physics SocietyGreek Aggregator OpenArchives.gr | National Documentation Centre (EKT)other