13-18 May 2018
Casino Conference Centre
Europe/Prague timezone

Determination of Presence of Artificial Nuclides in Air using NuRMS EGS Air Sampler and WIMP 120 Gross Alpha/Beta Counter

15 May 2018, 17:15
1h 30m
Gallery (Casino Conference Centre)

Gallery

Casino Conference Centre

Reitenbergerova 4/95, Mariánské Lázně, Czech Republic
Poster Radionuclides in the Environment, Radioecology Poster RER

Speaker

Lucie Fiserova (CZ)

Description

The determination of the presence of artificial radionuclides in the air is mainly accomplished by using gamma spectrometry analysis of filter samples. This work suggests very fast, reliable and efficient technique for tentative quantitative determination of the activity of artificial nuclides such as transuranic elements, strontium, yttrium, etc. in the air based only on the gross alpha and beta volume activity. The main aspect of this technique is to provide information about approximate results for the gross alpha and beta activity of air filters, thus it is convenient as triage technique. Unlike gamma spectrometry, this method is not qualitative but allows preliminary estimation of the presence of non-natural radionuclides. The glass microfiber filters of porosity of 2.7 μm and diameter of 110 mm were used for sampling the air. The influence of increment of the dust layer on self-absorption of alpha/beta particles was also studied. This method is particularly suitable for screening situations where radionuclide identification is not necessary.

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