Analysis of Interferences from Full Energy Peaks in Gamma Spectrometry of Norm and Tenorm Samples
Апстракт
A considerable number of primordial radioisotopes are present in almost all the samples extracted from the Earths crust, such as oil, rock, soil or other materials. Their concentrations are often determined by gamma spectrometry. Although the relative concentrations of isotopes often fluctuate within a narrow range, it is not always the case. Some natural materials (such as naturally occurring radioactive material) show unusual activity ratio between U-238 and Th-232, while technologically processed materials (technologically enhanced naturally occurring radioactive material) might also introduce significant disequilibrium hi radioactive chains. Knowing that primordial radioisotopes emit in total more than a thousand gamma and characteristic X-ray photons and that many of them interfere with each other, a question arises whether for some activity ratios commonly used photopeaks become useless for quantitative analysis, due to interferences with other photopeaks. A computer program was ...developed in order to calculate full energy photon interferences for any chosen photopeak. The calculations are based on the inputs in the form of isotope activities and detector calibration equations and its characteristics are presented in this paper.
Кључне речи:
gamma spectrometry / interference / NORM / TENORM / radioactivityИзвор:
Nuclear technology and radiation protection, 2012, 27, 4, 380-387Финансирање / пројекти:
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- IAEA Technical Cooperation Project [RER/9/101]
DOI: 10.2298/NTRP1204380Z
ISSN: 1451-3994
WoS: 000313605000008
Scopus: 2-s2.0-84873865141
Колекције
Институција/група
VinčaTY - JOUR AU - Živanović, Miloš Z. AU - Krneta-Nikolić, Jelena D. AU - Apostol, Andrei I. AU - Anagnostakis, Marios J. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5267 AB - A considerable number of primordial radioisotopes are present in almost all the samples extracted from the Earths crust, such as oil, rock, soil or other materials. Their concentrations are often determined by gamma spectrometry. Although the relative concentrations of isotopes often fluctuate within a narrow range, it is not always the case. Some natural materials (such as naturally occurring radioactive material) show unusual activity ratio between U-238 and Th-232, while technologically processed materials (technologically enhanced naturally occurring radioactive material) might also introduce significant disequilibrium hi radioactive chains. Knowing that primordial radioisotopes emit in total more than a thousand gamma and characteristic X-ray photons and that many of them interfere with each other, a question arises whether for some activity ratios commonly used photopeaks become useless for quantitative analysis, due to interferences with other photopeaks. A computer program was developed in order to calculate full energy photon interferences for any chosen photopeak. The calculations are based on the inputs in the form of isotope activities and detector calibration equations and its characteristics are presented in this paper. T2 - Nuclear technology and radiation protection T1 - Analysis of Interferences from Full Energy Peaks in Gamma Spectrometry of Norm and Tenorm Samples VL - 27 IS - 4 SP - 380 EP - 387 DO - 10.2298/NTRP1204380Z ER -
@article{ author = "Živanović, Miloš Z. and Krneta-Nikolić, Jelena D. and Apostol, Andrei I. and Anagnostakis, Marios J.", year = "2012", abstract = "A considerable number of primordial radioisotopes are present in almost all the samples extracted from the Earths crust, such as oil, rock, soil or other materials. Their concentrations are often determined by gamma spectrometry. Although the relative concentrations of isotopes often fluctuate within a narrow range, it is not always the case. Some natural materials (such as naturally occurring radioactive material) show unusual activity ratio between U-238 and Th-232, while technologically processed materials (technologically enhanced naturally occurring radioactive material) might also introduce significant disequilibrium hi radioactive chains. Knowing that primordial radioisotopes emit in total more than a thousand gamma and characteristic X-ray photons and that many of them interfere with each other, a question arises whether for some activity ratios commonly used photopeaks become useless for quantitative analysis, due to interferences with other photopeaks. A computer program was developed in order to calculate full energy photon interferences for any chosen photopeak. The calculations are based on the inputs in the form of isotope activities and detector calibration equations and its characteristics are presented in this paper.", journal = "Nuclear technology and radiation protection", title = "Analysis of Interferences from Full Energy Peaks in Gamma Spectrometry of Norm and Tenorm Samples", volume = "27", number = "4", pages = "380-387", doi = "10.2298/NTRP1204380Z" }
Živanović, M. Z., Krneta-Nikolić, J. D., Apostol, A. I.,& Anagnostakis, M. J.. (2012). Analysis of Interferences from Full Energy Peaks in Gamma Spectrometry of Norm and Tenorm Samples. in Nuclear technology and radiation protection, 27(4), 380-387. https://doi.org/10.2298/NTRP1204380Z
Živanović MZ, Krneta-Nikolić JD, Apostol AI, Anagnostakis MJ. Analysis of Interferences from Full Energy Peaks in Gamma Spectrometry of Norm and Tenorm Samples. in Nuclear technology and radiation protection. 2012;27(4):380-387. doi:10.2298/NTRP1204380Z .
Živanović, Miloš Z., Krneta-Nikolić, Jelena D., Apostol, Andrei I., Anagnostakis, Marios J., "Analysis of Interferences from Full Energy Peaks in Gamma Spectrometry of Norm and Tenorm Samples" in Nuclear technology and radiation protection, 27, no. 4 (2012):380-387, https://doi.org/10.2298/NTRP1204380Z . .