TY  - JOUR
AU  - Forkapić, Sofija
AU  - Lakatoš, Robert
AU  - Čeliković, Igor T.
AU  - Bikit-Schroeder, Kristina
AU  - Mrđa, Dušan
AU  - Radolić, Vanja
AU  - Samardžić, Selena
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0969806X18315032
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8092
AB  - Most studies focused on thoron have shown that indoor thoron originates mainly from building materials and that thoron concentrations exponentially decrease with a distance from a wall surface. On the contrary, due to longer half-lives of thoron progenies, 212 Pb and 212 Bi, which are mainly responsible for the bronchial dose, it is expected that their spatial distribution is homogeneous. Therefore, direct measurements of thoron progeny concentrations or direct thoron measurement and determination of thoron equilibrium factor are necessary for accurate dose assessment. In this paper, we have optimized and validated a reliable and inexpensive method for direct measurement of thoron progenies concentrations based on an air filtration followed by gamma spectrometry measurements. With simultaneous measurements of indoor thoron by the RAD7 active device, the equilibrium factor for thoron in 15 different investigated dwellings was estimated. Obtained results for the equilibrium equivalent thoron concentrations in the range from 0.277 Bq/m 3 to 11.34 Bq/m 3 and thoron equilibrium factor in the range from 0.0047 to 0.098 with arithmetic mean value of 0.034 are in good agreement with already published results. © 2019 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Proposal and optimization of method for direct determination of the thoron progeny concentrations and thoron equilibrium
VL  - 159
SP  - 57
EP  - 63
DO  - 10.1016/j.radphyschem.2019.02.043
ER  - 

@article{
author = "Forkapić, Sofija and Lakatoš, Robert and Čeliković, Igor T. and Bikit-Schroeder, Kristina and Mrđa, Dušan and Radolić, Vanja and Samardžić, Selena",
year = "2019",
abstract = "Most studies focused on thoron have shown that indoor thoron originates mainly from building materials and that thoron concentrations exponentially decrease with a distance from a wall surface. On the contrary, due to longer half-lives of thoron progenies, 212 Pb and 212 Bi, which are mainly responsible for the bronchial dose, it is expected that their spatial distribution is homogeneous. Therefore, direct measurements of thoron progeny concentrations or direct thoron measurement and determination of thoron equilibrium factor are necessary for accurate dose assessment. In this paper, we have optimized and validated a reliable and inexpensive method for direct measurement of thoron progenies concentrations based on an air filtration followed by gamma spectrometry measurements. With simultaneous measurements of indoor thoron by the RAD7 active device, the equilibrium factor for thoron in 15 different investigated dwellings was estimated. Obtained results for the equilibrium equivalent thoron concentrations in the range from 0.277 Bq/m 3 to 11.34 Bq/m 3 and thoron equilibrium factor in the range from 0.0047 to 0.098 with arithmetic mean value of 0.034 are in good agreement with already published results. © 2019 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Proposal and optimization of method for direct determination of the thoron progeny concentrations and thoron equilibrium",
volume = "159",
pages = "57-63",
doi = "10.1016/j.radphyschem.2019.02.043"
}

Forkapić, S., Lakatoš, R., Čeliković, I. T., Bikit-Schroeder, K., Mrđa, D., Radolić, V.,& Samardžić, S.. (2019). Proposal and optimization of method for direct determination of the thoron progeny concentrations and thoron equilibrium. in Radiation Physics and Chemistry, 159, 57-63.
https://doi.org/10.1016/j.radphyschem.2019.02.043

Forkapić S, Lakatoš R, Čeliković IT, Bikit-Schroeder K, Mrđa D, Radolić V, Samardžić S. Proposal and optimization of method for direct determination of the thoron progeny concentrations and thoron equilibrium. in Radiation Physics and Chemistry. 2019;159:57-63.
doi:10.1016/j.radphyschem.2019.02.043 .

Forkapić, Sofija, Lakatoš, Robert, Čeliković, Igor T., Bikit-Schroeder, Kristina, Mrđa, Dušan, Radolić, Vanja, Samardžić, Selena, "Proposal and optimization of method for direct determination of the thoron progeny concentrations and thoron equilibrium" in Radiation Physics and Chemistry, 159 (2019):57-63,
https://doi.org/10.1016/j.radphyschem.2019.02.043 . .

TY  - CONF
AU  - Radolić, Vanja
AU  - Poje Sovilj, Marina
AU  - Stanić, Denis
AU  - Miklavčić, Igor
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8274
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 concentrations in soil gas in Croatia were measured from 2005-2013 with the
AlphaGUARD and from 2013- with RM-2 measuring systems, while soil permeability
was measured with the Radon-JOK device since 2015. Measurements of both
parameters were performed at 412 locations, mostly in the vicinity of schools and
kindergartens and the obtained average value of radon in soil gas was 48 kBq m-3 with
standard deviation of 52 kBq m-3. It is important to emphasize that there are areas with
radon concentrations up to 550 kBq m3
.
Geogenic radon potential (GRP) has been constructed by “Neznal approach” and a
new subclassification with 7 classes (1- very low, 2 – low, 3 – medium lower, 4 –
medium higher, 5 – high, 6 – very high, 7 – extremely high) is being introduced. The
obtained average GRP of 28 ± 29 (“Neznal equation”) or 3.30 ± 0.96 (classes)
classifies the soil of Croatia into soil of medium GRP.
AB  - Koncentracije radona u tlu u Republici Hrvatskoj su mjerene AlphaGUARD mjernim
sustavom (Genitron Instruments) od 2005. do 2013., a potom se mjere RM-2 mjernim
uređajem (Radon v.o.s., Češka Republika). Premeabilnost tla mjeri se od 2015. godine
Radon-JOK uređajem (Radon v.o.s., Češka Republika). Mjerenja se uglavnom obavljaju
u blizini škola i vrtića. Dosad je izvršeno 412 mjerenja oba parametra. Prosječna
koncentracija radona u tlu iznosi 48 kBq m-3 s pripadnom standardnom devijacijom od
52 kBq m-3. No, postoje i područja u kojima je mjerena koncentracija radona u tlu i do
550 kBq m-3
.
Geogenski radonski potencijal (GRP) je izračunat tzv. češkim pristupom iz empirijske
jednadžbe, a uvedena je i nova subklasifikacija kojom se kontinuirane vrijednosti
GRP-a svrstavaju u klase: (1- vrlo nizak, 2 – nizak, 3 – niži srednji, 4 – viši srednji, 5 –
visok, 6 – vrlo visok, 7 – izrazito visok). Izračunate vrijednosti GRP-a iznose 28 ± 29
(empirijska kontinuirana vrijednost) odnosno 3,30 ± 0,96 (klase) čime se tlo u Republici
Hrvatskoj, u prosjeku, klasificira u srednji geogenski radonski potencijal.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 29. симпозијум ДЗЗСЦГ : зборник радова
T1  - Radon in soil gas and constructed geogenic radon potential in Croatia
T1  - Radon u tlu i izračunati geogenski radonski potencijal u Hrvatskoj
SP  - 192
EP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8274
ER  - 

@conference{
author = "Radolić, Vanja and Poje Sovilj, Marina and Stanić, Denis and Miklavčić, Igor",
year = "2017",
abstract = "Radon concentrations in soil gas in Croatia were measured from 2005-2013 with the
AlphaGUARD and from 2013- with RM-2 measuring systems, while soil permeability
was measured with the Radon-JOK device since 2015. Measurements of both
parameters were performed at 412 locations, mostly in the vicinity of schools and
kindergartens and the obtained average value of radon in soil gas was 48 kBq m-3 with
standard deviation of 52 kBq m-3. It is important to emphasize that there are areas with
radon concentrations up to 550 kBq m3
.
Geogenic radon potential (GRP) has been constructed by “Neznal approach” and a
new subclassification with 7 classes (1- very low, 2 – low, 3 – medium lower, 4 –
medium higher, 5 – high, 6 – very high, 7 – extremely high) is being introduced. The
obtained average GRP of 28 ± 29 (“Neznal equation”) or 3.30 ± 0.96 (classes)
classifies the soil of Croatia into soil of medium GRP., Koncentracije radona u tlu u Republici Hrvatskoj su mjerene AlphaGUARD mjernim
sustavom (Genitron Instruments) od 2005. do 2013., a potom se mjere RM-2 mjernim
uređajem (Radon v.o.s., Češka Republika). Premeabilnost tla mjeri se od 2015. godine
Radon-JOK uređajem (Radon v.o.s., Češka Republika). Mjerenja se uglavnom obavljaju
u blizini škola i vrtića. Dosad je izvršeno 412 mjerenja oba parametra. Prosječna
koncentracija radona u tlu iznosi 48 kBq m-3 s pripadnom standardnom devijacijom od
52 kBq m-3. No, postoje i područja u kojima je mjerena koncentracija radona u tlu i do
550 kBq m-3
.
Geogenski radonski potencijal (GRP) je izračunat tzv. češkim pristupom iz empirijske
jednadžbe, a uvedena je i nova subklasifikacija kojom se kontinuirane vrijednosti
GRP-a svrstavaju u klase: (1- vrlo nizak, 2 – nizak, 3 – niži srednji, 4 – viši srednji, 5 –
visok, 6 – vrlo visok, 7 – izrazito visok). Izračunate vrijednosti GRP-a iznose 28 ± 29
(empirijska kontinuirana vrijednost) odnosno 3,30 ± 0,96 (klase) čime se tlo u Republici
Hrvatskoj, u prosjeku, klasificira u srednji geogenski radonski potencijal.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "29. симпозијум ДЗЗСЦГ : зборник радова",
title = "Radon in soil gas and constructed geogenic radon potential in Croatia, Radon u tlu i izračunati geogenski radonski potencijal u Hrvatskoj",
pages = "192-199",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8274"
}

Radolić, V., Poje Sovilj, M., Stanić, D.,& Miklavčić, I.. (2017). Radon in soil gas and constructed geogenic radon potential in Croatia. in 29. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 192-199.
https://hdl.handle.net/21.15107/rcub_vinar_8274

Radolić V, Poje Sovilj M, Stanić D, Miklavčić I. Radon in soil gas and constructed geogenic radon potential in Croatia. in 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:192-199.
https://hdl.handle.net/21.15107/rcub_vinar_8274 .

Radolić, Vanja, Poje Sovilj, Marina, Stanić, Denis, Miklavčić, Igor, "Radon in soil gas and constructed geogenic radon potential in Croatia" in 29. симпозијум ДЗЗСЦГ : зборник радова (2017):192-199,
https://hdl.handle.net/21.15107/rcub_vinar_8274 .