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Installation and performance testing of an XtRa-NaI(Tl) Compton Suppression System at the NED-NTUA
M I Savva1, K L Karfopoulos1, D J Karangelos1
1Nuclear Engineering Department, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou, 15780 Athens, Greece.
Abstract:
This paper presents the Compton Suppression System, recently installed at the Nuclear Engineering Department of NTUA. The system consists of an XtRa Ge detector coupled with a NaI(Tl) guard detector. The electronic set-up allows for the simultaneous collection of both the suppressed and the unsuppressed spectra. System performance is investigated using certified point and volume sources. Parameters such as Peak Suppression Factors, peak-to-Compton ratios and minimum detectable activity for specific radionuclides are determined.
