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Influence of Reference Field Spectra on Calibration of Field Class Dosimeters

Uticaj spektara referentnih polja na etaloniranje korisničkih dozimetara

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2021
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Authors
Živanović, Miloš Z.
Šabeta, Amra
Kržanović, Nikola
Makarić, Vedrana
Đaletić, Miloš
Stupar, Milica
Stanković, Srboljub J.
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© Institut za nuklearne nauke "Vinča"
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Abstract
Active electronic dosimeters are usually calibrated in Secondary Standards Dosimetry Laboratories in reference photon fields, with the uncertainty which is typically around 5 % (k=2). Reference fields are established in accordance with relevant international standards – usually ISO 4037 for photon radiation. Some differences in spectra between different laboratories are unavoidable, but the effect on reference dose rates is well studied and within the above mentioned measurement uncertainty, and this is confirmed by existing interlaboratory comparisons. However, many field class dosimeters have poor energy dependence, especially in the energy range below 100 keV, which could cause large differences in calibration factors determined in different calibration laboratories under nominally the same conditions. This may also have implications for dosimeter testing or verification. In this paper, preliminary results obtained in two different calibration laboratories are presented.
Aktivni elektronski dozimetri se najčešće etaloniraju u Sekundarnim standardnim dozimetrijskim laboratorijama u referentnim poljima fotonskog zračenja, sa mernom nesigurnošću od oko 5 % (k=2). Referentna polja se uspostavljaju u skladu sa međunarodnim standardima, obično ISO 4037 za fotonsko zračenje. Male razlike u spektrima u različitim laboratorijama su neizbežne, ali je efekat na referentne vrednosti dobro proučen i ostaje u okviru mernih nesigurnosti, što je potvrđeno postojećim međulaboratorijskim poređenjima. Međutim, mnogi korisnički dozimetri imaju lošu energetsku zavisnost, pogotovo u opsegu energija ispod 100 keV, što može da uzrokuje velike razlike u kalibracionim faktorima određenim u različitim laboratorijama u nominalno istim uslovima. To može da ima posledice i na ispitivanje ili overavanje dozimetara. U ovom radu su prikazani prvi rezultati dobijeni u dve različite laboratorije za etaloniranje.
Source:
31. симпозијум ДЗЗСЦГ : зборник радова, 2021, 194-199
Publisher:
  • Institut za nuklearne nauke "Vinča"
  • Društvo za zaštitu od zračenja Srbije i Crne Gore
Funding / projects:
  • 17RPT01 DOSEtrace
Note:
  • XXXI Симпозијум Друштва за заштиту од зрачења Србије и Црне Горе, 06-08. октобар 2021.
  • Proceedings: https://vinar.vin.bg.ac.rs/handle/123456789/9668

ISBN: 978-86-7306-161-0

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_vinar_10087
URI
https://vinar.vin.bg.ac.rs/handle/123456789/10087
Collections
  • Radovi istraživača
Institution/Community
Vinča
TY  - CONF
AU  - Živanović, Miloš Z.
AU  - Šabeta, Amra
AU  - Kržanović, Nikola
AU  - Makarić, Vedrana
AU  - Đaletić, Miloš
AU  - Stupar, Milica
AU  - Stanković, Srboljub J.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10087
AB  - Active electronic dosimeters are usually calibrated in Secondary Standards Dosimetry Laboratories in reference photon fields, with the uncertainty which is typically around 5 % (k=2). Reference fields are established in accordance with relevant international standards – usually ISO 4037 for photon radiation. Some differences in spectra between different laboratories are unavoidable, but the effect on reference dose rates is well studied and within the above mentioned measurement uncertainty, and this is confirmed by existing interlaboratory comparisons. However, many field class dosimeters have poor energy dependence, especially in the energy range below 100 keV, which could cause large differences in calibration factors determined in different calibration laboratories under nominally the same conditions. This may also have implications for dosimeter testing or verification. In this paper, preliminary results obtained in two different calibration laboratories are presented.
AB  - Aktivni elektronski dozimetri se najčešće etaloniraju u Sekundarnim standardnim dozimetrijskim laboratorijama u referentnim poljima fotonskog zračenja, sa mernom nesigurnošću od oko 5 % (k=2). Referentna polja se uspostavljaju u skladu sa međunarodnim standardima, obično ISO 4037 za fotonsko zračenje. Male razlike u spektrima u različitim laboratorijama su neizbežne, ali je efekat na referentne vrednosti dobro proučen i ostaje u okviru mernih nesigurnosti, što je potvrđeno postojećim međulaboratorijskim poređenjima. Međutim, mnogi korisnički dozimetri imaju lošu energetsku zavisnost, pogotovo u opsegu energija ispod 100 keV, što može da uzrokuje velike razlike u kalibracionim faktorima određenim u različitim laboratorijama u nominalno istim uslovima. To može da ima posledice i na ispitivanje ili overavanje dozimetara. U ovom radu su prikazani prvi rezultati dobijeni u dve različite laboratorije za etaloniranje.
PB  - Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 31. симпозијум ДЗЗСЦГ : зборник радова
T1  - Influence of Reference Field Spectra on Calibration of Field Class Dosimeters
T1  - Uticaj spektara referentnih polja na etaloniranje korisničkih dozimetara
SP  - 194
EP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10087
ER  - 
@conference{
author = "Živanović, Miloš Z. and Šabeta, Amra and Kržanović, Nikola and Makarić, Vedrana and Đaletić, Miloš and Stupar, Milica and Stanković, Srboljub J.",
year = "2021",
abstract = "Active electronic dosimeters are usually calibrated in Secondary Standards Dosimetry Laboratories in reference photon fields, with the uncertainty which is typically around 5 % (k=2). Reference fields are established in accordance with relevant international standards – usually ISO 4037 for photon radiation. Some differences in spectra between different laboratories are unavoidable, but the effect on reference dose rates is well studied and within the above mentioned measurement uncertainty, and this is confirmed by existing interlaboratory comparisons. However, many field class dosimeters have poor energy dependence, especially in the energy range below 100 keV, which could cause large differences in calibration factors determined in different calibration laboratories under nominally the same conditions. This may also have implications for dosimeter testing or verification. In this paper, preliminary results obtained in two different calibration laboratories are presented., Aktivni elektronski dozimetri se najčešće etaloniraju u Sekundarnim standardnim dozimetrijskim laboratorijama u referentnim poljima fotonskog zračenja, sa mernom nesigurnošću od oko 5 % (k=2). Referentna polja se uspostavljaju u skladu sa međunarodnim standardima, obično ISO 4037 za fotonsko zračenje. Male razlike u spektrima u različitim laboratorijama su neizbežne, ali je efekat na referentne vrednosti dobro proučen i ostaje u okviru mernih nesigurnosti, što je potvrđeno postojećim međulaboratorijskim poređenjima. Međutim, mnogi korisnički dozimetri imaju lošu energetsku zavisnost, pogotovo u opsegu energija ispod 100 keV, što može da uzrokuje velike razlike u kalibracionim faktorima određenim u različitim laboratorijama u nominalno istim uslovima. To može da ima posledice i na ispitivanje ili overavanje dozimetara. U ovom radu su prikazani prvi rezultati dobijeni u dve različite laboratorije za etaloniranje.",
publisher = "Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "31. симпозијум ДЗЗСЦГ : зборник радова",
title = "Influence of Reference Field Spectra on Calibration of Field Class Dosimeters, Uticaj spektara referentnih polja na etaloniranje korisničkih dozimetara",
pages = "194-199",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10087"
}
Živanović, M. Z., Šabeta, A., Kržanović, N., Makarić, V., Đaletić, M., Stupar, M.,& Stanković, S. J.. (2021). Influence of Reference Field Spectra on Calibration of Field Class Dosimeters. in 31. симпозијум ДЗЗСЦГ : зборник радова
Institut za nuklearne nauke "Vinča"., 194-199.
https://hdl.handle.net/21.15107/rcub_vinar_10087
Živanović MZ, Šabeta A, Kržanović N, Makarić V, Đaletić M, Stupar M, Stanković SJ. Influence of Reference Field Spectra on Calibration of Field Class Dosimeters. in 31. симпозијум ДЗЗСЦГ : зборник радова. 2021;:194-199.
https://hdl.handle.net/21.15107/rcub_vinar_10087 .
Živanović, Miloš Z., Šabeta, Amra, Kržanović, Nikola, Makarić, Vedrana, Đaletić, Miloš, Stupar, Milica, Stanković, Srboljub J., "Influence of Reference Field Spectra on Calibration of Field Class Dosimeters" in 31. симпозијум ДЗЗСЦГ : зборник радова (2021):194-199,
https://hdl.handle.net/21.15107/rcub_vinar_10087 .

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