Metode merenja Rn222 u vodi
Methods of Rn222 in water measurement
Аутори
Nikolov, JovanaTodorović, Nataša
Stojković, Ivana
Tenjović, Branislava
Vraničar, Andrej
Knežević, Jovana
Vuković, Srđan
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 pri...kazane 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 spe...ctrometric 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.
Извор:
29. симпозијум ДЗЗСЦГ : зборник радова, 2017, 500-506Издавач:
- Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
Финансирање / пројекти:
- Pokrajinski Sekretarijat za visoko obrazovanje i naučno-istraživačku delatnost [No. 114-451-2405/2016 : “Radionuklidi u pijaćoj vodi i incidenca karcinoma u Vojvodini”]
- Нуклеарне методе истраживања ретких догађаја и космичког зрачења (RS-MESTD-Basic Research (BR or ON)-171002)
- Биосенсинг технологије и глобални систем за континуирана истраживања и интегрисано управљање екосистемима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43002)
Напомена:
- Зборник радова : XXIX симпозијум ДЗЗСЦГ : Сребрно језеро, 27-29. септембар 2017. године
URI
https://vinar.vin.bg.ac.rs/handle/123456789/8321https://plus.sr.cobiss.net/opac7/bib/245691404
http://dzz.org.rs/wp-content/uploads/2013/06/Zbornik_XXIX_Simpozijum_DZZ_SCG_Srebrno_jezero_2.pdf
Колекције
Институција/група
VinčaTY - 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 .