RAPID DETERMINATION OF GROSS ALPHA/BETA ACTIVITY IN MILK USING LIQUID SCINTILATION COUNTER TECHNIQUE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG45__%2F16%3A00532684" target="_blank" >RIV/60162694:G45__/16:00532684 - isvavai.cz</a>

Result on the web

<a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2298/NTRP1602179S" target="_blank" >10.2298/NTRP1602179S</a>

Result language

angličtina

Original language name

RAPID DETERMINATION OF GROSS ALPHA/BETA ACTIVITY IN MILK USING LIQUID SCINTILATION COUNTER TECHNIQUE

Original language description

Rapid determination of gross alpha and beta emitters in milk by liquid scintillation counter is discussed. This method is based on direct addition of different types of milk into scintillation cocktail and therefore it is very promising for fast determination of alpha/beta activity due to direct alpha and beta separation, measurement in close 4p geometry and without sample treatment. The selected group of radionuclides was chosen with the respect to military significance, radio-toxicity, and possibility of potential misuse. As model radionuclides 241Am,239Pu, and 90Sr were selected. The Liquid Scintilation Counter Hidex 300 SL equipped with triple-double-coincidence-ratio technique was used for sample measurement. The aim of the work was focused on comparison of different cocktails produced by Hidex and Perkin Elmer, choosing the best cocktail based on our measurement results and adjustment of its appropriate volume. Furthermore, the optimization of ratio between the volume of scintillation cocktail and the volume of milk was investigated with the respect to the model radionuclides. According to the obtained results, the efficiency for alpha emitters was greater than 85 % and for beta, greater than 95 %. The obtained results allowed this method to be used for rapid determination of gross alpha/beta activity in cases where time is an essence, such as first responders or mass-scale samples, where ordinary means suffer from lack of capacity or simply collapse under the on slaught.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CH - Nuclear and quantum chemistry, photo chemistry

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nuclear Technology & Radiation Protection

ISSN

1451-3994

e-ISSN

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Volume of the periodical

31

Issue of the periodical within the volume

2

Country of publishing house

CS - SERBIA AND MONTENEGRO

Number of pages

5

Pages from-to

179-183

UT code for WoS article

000380299100010

EID of the result in the Scopus database

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