An experimental approach to efficiency calibration for gamma-ray spectrometric analysis of large air particulate filters

Risultato della ricerca: Articlepeer review

7 Citazioni (Scopus)

Abstract

A full-energy-peak efficiency (FEPE) calibration procedure for gamma-ray spectrometric analysis of air particulate samples collected on large filters is described herein. The experimental results are obtained for an unconventional measurement geometry, termed a "packet-sample". The sample is obtained from a large cellulose filter (45 cm × 45 cm) used to collect air particulate samples that is resized to dimensions suitable for spectrometric measurements (6 cm×6 cm×0.7 cm). To determine the FEPEs, many standards were created, i.e., some filters containing a small amount of ThO2 and others containing a known amount of KCl. Efficiency curves obtained through best fits to experimental data for three high-purity germanium (HPGe) detectors, one of them for X-ray measurement, cover the energy range from 40 keV to 2600 keV. To validate the efficiency calibration procedure two experimental tests with the use of calibrated sources were conducted and, as application example, airborne concentrations of 131I (particulate matter), 134Cs and 137Cs at Palermo (Italy) in the days following the Fukushima accident in Japan were evaluated.
Lingua originaleEnglish
pagine (da-a)53-58
Numero di pagine6
RivistaRadiation Physics and Chemistry
Volume53
Stato di pubblicazionePublished - 2013

All Science Journal Classification (ASJC) codes

  • Radiation

Fingerprint Entra nei temi di ricerca di 'An experimental approach to efficiency calibration for gamma-ray spectrometric analysis of large air particulate filters'. Insieme formano una fingerprint unica.

Cita questo