Installation and performance testing of an XtRa-NaI(Tl) Compton Suppression System at the NED-NTUA

M I Savva; K L Karfopoulos; D J Karangelos; M J Anagnostakis; S E Simopoulos

doi:10.1016/j.apradiso.2013.11.056

Installation and performance testing of an XtRa-NaI(Tl) Compton Suppression System at the NED-NTUA

Appl Radiat Isot. 2014 May:87:361-4. doi: 10.1016/j.apradiso.2013.11.056. Epub 2013 Nov 27.

Authors

M I Savva¹, K L Karfopoulos², D J Karangelos², M J Anagnostakis², S E Simopoulos²

Affiliations

¹ Nuclear Engineering Department, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou, 15780 Athens, Greece. Electronic address: [email protected].
² Nuclear Engineering Department, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou, 15780 Athens, Greece.

PMID: 24315283
DOI: 10.1016/j.apradiso.2013.11.056

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.

Keywords: Compton suppression system; Gamma-ray spectrometry; Performance testing.