Proposal and optimization of method for direct determination of the thoron progeny concentrations and thoron equilibrium
Само за регистроване кориснике
2019
Аутори
Forkapić, SofijaLakatoš, Robert
Čeliković, Igor T.
Bikit-Schroeder, Kristina
Mrđa, Dušan
Radolić, Vanja
Samardžić, Selena
Чланак у часопису (Објављена верзија)
,
© 2019 Elsevier Ltd
Метаподаци
Приказ свих података о документуАпстракт
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 th...oron 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
Кључне речи:
Equilibrium equivalent thoron concentration / Thoron / Thoron progenyИзвор:
Radiation Physics and Chemistry, 2019, 159, 57-63Финансирање / пројекти:
- 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)
- Нуклеарна физика, методе и примена (RS-MESTD-Basic Research (BR or ON)-171018)
DOI: 10.1016/j.radphyschem.2019.02.043
ISSN: 0969-806X
WoS: 000472690000008
Scopus: 2-s2.0-85062700301
URI
https://linkinghub.elsevier.com/retrieve/pii/S0969806X18315032https://vinar.vin.bg.ac.rs/handle/123456789/8092
Колекције
Институција/група
VinčaTY - 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 . .
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