TY  - CONF
AU  - Todorović, Nataša
AU  - Nikolov, Jovana
AU  - Stojković, Ivana
AU  - Hansman, Jan
AU  - Kuzmanović, Predrag
AU  - Vraničar, Andrej
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8319
UR  - https://plus.sr.cobiss.net/opac7/bib/245691404
UR  - http://dzz.org.rs/wp-content/uploads/2013/06/Zbornik_XXIX_Simpozijum_DZZ_SCG_Srebrno_jezero_2.pdf
AB  - U radu je prikazano poređenje različitih metoda i tehnika za određivanje 226Ra u vodi:
tečna scinitlaciona spektrometrija (LSC), alfa spektrometrija i gama spektrometrija.
Tehnikom LSC određen je sadržaj 226Ra u vodi korišćenjem sledećih metoda:
standardne test metode ASTM D 7283-06 i EPA metode 913.0. Gama spektrometrijom
je sadržaj 226Ra određen direktnom metodom u Marineli geometriji. Alfa spektrometrom
RAD 7 određena je koncentracija aktivnosti 226Ra u vodi korišćenjem protokola
Wat250. Izvršeno je poređene rezultata dobijenih ovim metodama i dat je pregled
prednosti i nedostataka svake metode i tehnike. Dobijene eksperimentalne vrednosti za
sve metode su date sa odgovarajućim korekcijom.
AB  - The measurement of 226Ra in natural water samples is important because it is one of the
most hazardous elements with respect to internal radiation exposure. Therefore, in the
monitoring studies it is desirable to have a precise and accurate technique for the
determination of the activity concentration of this radionuclide.
This paper presents a comparison of different techniques and methods for 226
Ra in
water samples spiked with different concentrations of 226Ra isotope: LSC (Liquid
Scintillation Counting), alpha and gamma spectrometry. An overview of the advantages
and disadvantages of each techniques are presented. 226Ra in water samples were
determined by gamma spectrometry using direct method (untreated water samples) and
by RAD7 solid state detector. For 226Ra determination by LSC two different methods
were tested: ASTM D 7283-06 Standard test method for alpha and beta activity in water
by liquid scintillation and EPA Method 913.0 for radon determination in drinking
water.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 29. симпозијум ДЗЗСЦГ : зборник радова
T1  - Poređenje metoda za ispitivanje Ra226 u vodi
T1  - Different techniques for Ra226 determination in water samples
SP  - 482
EP  - 492
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8319
ER  - 

@conference{
author = "Todorović, Nataša and Nikolov, Jovana and Stojković, Ivana and Hansman, Jan and Kuzmanović, Predrag and Vraničar, Andrej",
year = "2017",
abstract = "U radu je prikazano poređenje različitih metoda i tehnika za određivanje 226Ra u vodi:
tečna scinitlaciona spektrometrija (LSC), alfa spektrometrija i gama spektrometrija.
Tehnikom LSC određen je sadržaj 226Ra u vodi korišćenjem sledećih metoda:
standardne test metode ASTM D 7283-06 i EPA metode 913.0. Gama spektrometrijom
je sadržaj 226Ra određen direktnom metodom u Marineli geometriji. Alfa spektrometrom
RAD 7 određena je koncentracija aktivnosti 226Ra u vodi korišćenjem protokola
Wat250. Izvršeno je poređene rezultata dobijenih ovim metodama i dat je pregled
prednosti i nedostataka svake metode i tehnike. Dobijene eksperimentalne vrednosti za
sve metode su date sa odgovarajućim korekcijom., The measurement of 226Ra in natural water samples is important because it is one of the
most hazardous elements with respect to internal radiation exposure. Therefore, in the
monitoring studies it is desirable to have a precise and accurate technique for the
determination of the activity concentration of this radionuclide.
This paper presents a comparison of different techniques and methods for 226
Ra in
water samples spiked with different concentrations of 226Ra isotope: LSC (Liquid
Scintillation Counting), alpha and gamma spectrometry. An overview of the advantages
and disadvantages of each techniques are presented. 226Ra in water samples were
determined by gamma spectrometry using direct method (untreated water samples) and
by RAD7 solid state detector. For 226Ra determination by LSC two different methods
were tested: ASTM D 7283-06 Standard test method for alpha and beta activity in water
by liquid scintillation and EPA Method 913.0 for radon determination in drinking
water.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "29. симпозијум ДЗЗСЦГ : зборник радова",
title = "Poređenje metoda za ispitivanje Ra226 u vodi, Different techniques for Ra226 determination in water samples",
pages = "482-492",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8319"
}

Todorović, N., Nikolov, J., Stojković, I., Hansman, J., Kuzmanović, P.,& Vraničar, A.. (2017). Poređenje metoda za ispitivanje Ra226 u vodi. in 29. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 482-492.
https://hdl.handle.net/21.15107/rcub_vinar_8319

Todorović N, Nikolov J, Stojković I, Hansman J, Kuzmanović P, Vraničar A. Poređenje metoda za ispitivanje Ra226 u vodi. in 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:482-492.
https://hdl.handle.net/21.15107/rcub_vinar_8319 .

Todorović, Nataša, Nikolov, Jovana, Stojković, Ivana, Hansman, Jan, Kuzmanović, Predrag, Vraničar, Andrej, "Poređenje metoda za ispitivanje Ra226 u vodi" in 29. симпозијум ДЗЗСЦГ : зборник радова (2017):482-492,
https://hdl.handle.net/21.15107/rcub_vinar_8319 .

TY  - CONF
AU  - Nikolov, Jovana
AU  - Todorović, Nataša
AU  - Stojković, Ivana
AU  - Tenjović, Branislava
AU  - Vraničar, Andrej
AU  - Knežević, Jovana
AU  - Vuković, Srđan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8321
UR  - https://plus.sr.cobiss.net/opac7/bib/245691404
UR  - http://dzz.org.rs/wp-content/uploads/2013/06/Zbornik_XXIX_Simpozijum_DZZ_SCG_Srebrno_jezero_2.pdf
AB  - Radon 222Rn nastaje kao produkt raspada 226Ra, rastvorljiv je u vodi i predstavlja jedan
od najzastupljenijih prirodnih izvora zračenja. Monitoring 222Rn u vodi za piće je važno
kontinuirano sprovoditi kako zbog hidrogeoloških studija tako i zbog procene
radiološkog rizika. Postoje različite metode merenja radona u vodi. Alfa
spektrometrijske metode su najzastupljenije, posebno se izdvaja RAD7 kao portabilni
alfa spektrometar koji omogućava merenja na terenu. Tečna scintilaciona
spektrometrija (LSC) se često preferira kao tehnika merenja 222Rn u uzorcima vode.
Sama metoda se sprovodi mešanjem uzoraka vode sa organskim scintilacionim
koktelom, koktel izaziva difuziju radona iz vodenog rastvora u organsku fazu jer radon
ima veći afinitet ka organskoj fazi, čime se sprečava emanacija radona iz vode. Pored
pomenutih metoda, i gama spektrometrijska metoda koja koristi sekularnu radioaktivnu
ravnotežu radona i njegovih potomaka daje zadovoljavajuće rezutlate. U ovom radu
biće prikazane prednosti i mane četiri različite metode merenja radona u vodi: dve LSC
metode (monofazna i dvofazna), RAD7 i gama spektrometrijska metoda. Pored
razčičitih tehnika merenja, u radu će biti prikazano i poređenje dve metode uzorkovanja
voda za analizu.
AB  - Radon 222Rn is formed as a product of decomposition of 226Ra, it is radioactive isotope
that is soluble in water and represents one of the most common natural sources of
radiation. Monitoring of 222Rn in drinking water is important to continuously implement
due to hydrogeological studies and also radiological risk assessment. There are
different methods of measuring radon in water. Alpha spectrometric methods are the
most commonly used, especially RAD7 as a portable alpha spectrometer that allows on
field measurements. Liquid scintillation spectrometry (LSC) is often preferred as a
technique of measuring 222Rn in water samples. The method itself is carried out by
mixing water samples with an organic scintillation cocktail. The cocktail causes the
radon diffusion from the aqueous solution to the organic phase because radon has a
higher affinity for the organic phase, thus preventing the emission of radon from the
water. In addition to the before mentioned methods, a gamma spectrometric method
that uses the secular radioactive equilibrium of radon and its daughter products gave us
satisfactory results. In this paper, the advantages and disadvantages of four different
methods of measuring radon in water will be shown: two LSC methods (monophase and
two-phase), RAD7 and gamma spectrometric method. All three methods have very low
minimal detectable activity (MDA) values, lower than 1 Bq l-1. In addition to the
different measurement techniques, a comparison of two methods for sampling of water
will be presented also on few examples.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 29. симпозијум ДЗЗСЦГ : зборник радова
T1  - Metode merenja Rn222 u vodi
T1  - Methods of Rn222 in water measurement
SP  - 500
EP  - 506
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8321
ER  - 

@conference{
author = "Nikolov, Jovana and Todorović, Nataša and Stojković, Ivana and Tenjović, Branislava and Vraničar, Andrej and Knežević, Jovana and Vuković, Srđan",
year = "2017",
abstract = "Radon 222Rn nastaje kao produkt raspada 226Ra, rastvorljiv je u vodi i predstavlja jedan
od najzastupljenijih prirodnih izvora zračenja. Monitoring 222Rn u vodi za piće je važno
kontinuirano sprovoditi kako zbog hidrogeoloških studija tako i zbog procene
radiološkog rizika. Postoje različite metode merenja radona u vodi. Alfa
spektrometrijske metode su najzastupljenije, posebno se izdvaja RAD7 kao portabilni
alfa spektrometar koji omogućava merenja na terenu. Tečna scintilaciona
spektrometrija (LSC) se često preferira kao tehnika merenja 222Rn u uzorcima vode.
Sama metoda se sprovodi mešanjem uzoraka vode sa organskim scintilacionim
koktelom, koktel izaziva difuziju radona iz vodenog rastvora u organsku fazu jer radon
ima veći afinitet ka organskoj fazi, čime se sprečava emanacija radona iz vode. Pored
pomenutih metoda, i gama spektrometrijska metoda koja koristi sekularnu radioaktivnu
ravnotežu radona i njegovih potomaka daje zadovoljavajuće rezutlate. U ovom radu
biće prikazane prednosti i mane četiri različite metode merenja radona u vodi: dve LSC
metode (monofazna i dvofazna), RAD7 i gama spektrometrijska metoda. Pored
razčičitih tehnika merenja, u radu će biti prikazano i poređenje dve metode uzorkovanja
voda za analizu., Radon 222Rn is formed as a product of decomposition of 226Ra, it is radioactive isotope
that is soluble in water and represents one of the most common natural sources of
radiation. Monitoring of 222Rn in drinking water is important to continuously implement
due to hydrogeological studies and also radiological risk assessment. There are
different methods of measuring radon in water. Alpha spectrometric methods are the
most commonly used, especially RAD7 as a portable alpha spectrometer that allows on
field measurements. Liquid scintillation spectrometry (LSC) is often preferred as a
technique of measuring 222Rn in water samples. The method itself is carried out by
mixing water samples with an organic scintillation cocktail. The cocktail causes the
radon diffusion from the aqueous solution to the organic phase because radon has a
higher affinity for the organic phase, thus preventing the emission of radon from the
water. In addition to the before mentioned methods, a gamma spectrometric method
that uses the secular radioactive equilibrium of radon and its daughter products gave us
satisfactory results. In this paper, the advantages and disadvantages of four different
methods of measuring radon in water will be shown: two LSC methods (monophase and
two-phase), RAD7 and gamma spectrometric method. All three methods have very low
minimal detectable activity (MDA) values, lower than 1 Bq l-1. In addition to the
different measurement techniques, a comparison of two methods for sampling of water
will be presented also on few examples.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "29. симпозијум ДЗЗСЦГ : зборник радова",
title = "Metode merenja Rn222 u vodi, Methods of Rn222 in water measurement",
pages = "500-506",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8321"
}

Nikolov, J., Todorović, N., Stojković, I., Tenjović, B., Vraničar, A., Knežević, J.,& Vuković, S.. (2017). Metode merenja Rn222 u vodi. in 29. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 500-506.
https://hdl.handle.net/21.15107/rcub_vinar_8321

Nikolov J, Todorović N, Stojković I, Tenjović B, Vraničar A, Knežević J, Vuković S. Metode merenja Rn222 u vodi. in 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:500-506.
https://hdl.handle.net/21.15107/rcub_vinar_8321 .

Nikolov, Jovana, Todorović, Nataša, Stojković, Ivana, Tenjović, Branislava, Vraničar, Andrej, Knežević, Jovana, Vuković, Srđan, "Metode merenja Rn222 u vodi" in 29. симпозијум ДЗЗСЦГ : зборник радова (2017):500-506,
https://hdl.handle.net/21.15107/rcub_vinar_8321 .