Scintillation beta-spectrometer with enhanced sensitivity

I Kadenko; V Maydanyuk; V Petryshyn; G Primenko; Yu Sedov

doi:10.1016/j.apradiso.2004.10.014

Scintillation beta-spectrometer with enhanced sensitivity

Appl Radiat Isot. 2005 May;62(5):775-7. doi: 10.1016/j.apradiso.2004.10.014.

Authors

I Kadenko¹, V Maydanyuk, V Petryshyn, G Primenko, Yu Sedov

Affiliation

¹ Taras Shevchenko National University of Kyiv, 2, Build.11, Akademician Glushkov Prosp., Kyiv 03022, Ukraine. ndef@univ.kiev.ua

PMID: 15763485
DOI: 10.1016/j.apradiso.2004.10.014

Abstract

The design of a high-sensitive scintillation beta-spectrometer applied for measuring the content of (90)Sr in environmental samples against the background (40)K and (137)Cs is described. The spectrometer includes a plastic detector with developed surface, to be simultaneously used as a sample container. The content of (90)Sr is determined having a beta-spectrum region of interest 1311-2282 keV. The minimum detectable specific activity of the spectrometer is 3.5 Bq/kg for solid granular samples with a mass of 1000 g and a measuring time of 2 h.