Calibration of Marinelli vessels for measurement of radioactive environmental samples
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1997
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In order to measure low-activity radioactive environmental samples, both in liquid and solid phases, the use of Marinelli (reentrant) beakers is recommended. Standards were prepared by mixing of standardized radioactive solutions with CaCO3 of density 1.1 to 1.3 g cm(-3), similar to densities of environmental samples. Measurements of calibrated Marinelli comparator standards on detector surface showed that the dependence of log Eff vs. log E is almost linear in the 120 keV to 1500 keV range. The data can be fitted more accurately by assuming a parabolic correlation (log Eff vs. log E). The validity of these standards was checked by determining the concentration of radio-europium, radio-cesium and Ra-226 in three certified reference standard materials. The results obtained agreed well with the published certified data. The limit of detection for the determination of radio-cesium by gamma-ray spectrometry under the prevailing experimental conditions is 0.1 Bq (2.7 pCi), for 0.5 kg of env...ironmental samples.
Izvor:
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1997, 385, 2, 376-380
DOI: 10.1016/S0168-9002(96)01042-X
ISSN: 0168-9002
WoS: A1997WF94300028
Scopus: 2-s2.0-0030736963
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Institucija/grupa
VinčaTY - JOUR AU - Lavi, Natan AU - Alfassi, Zeev B. AU - Drndarski, Nina D. PY - 1997 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2050 AB - In order to measure low-activity radioactive environmental samples, both in liquid and solid phases, the use of Marinelli (reentrant) beakers is recommended. Standards were prepared by mixing of standardized radioactive solutions with CaCO3 of density 1.1 to 1.3 g cm(-3), similar to densities of environmental samples. Measurements of calibrated Marinelli comparator standards on detector surface showed that the dependence of log Eff vs. log E is almost linear in the 120 keV to 1500 keV range. The data can be fitted more accurately by assuming a parabolic correlation (log Eff vs. log E). The validity of these standards was checked by determining the concentration of radio-europium, radio-cesium and Ra-226 in three certified reference standard materials. The results obtained agreed well with the published certified data. The limit of detection for the determination of radio-cesium by gamma-ray spectrometry under the prevailing experimental conditions is 0.1 Bq (2.7 pCi), for 0.5 kg of environmental samples. T2 - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment T1 - Calibration of Marinelli vessels for measurement of radioactive environmental samples VL - 385 IS - 2 SP - 376 EP - 380 DO - 10.1016/S0168-9002(96)01042-X ER -
@article{ author = "Lavi, Natan and Alfassi, Zeev B. and Drndarski, Nina D.", year = "1997", abstract = "In order to measure low-activity radioactive environmental samples, both in liquid and solid phases, the use of Marinelli (reentrant) beakers is recommended. Standards were prepared by mixing of standardized radioactive solutions with CaCO3 of density 1.1 to 1.3 g cm(-3), similar to densities of environmental samples. Measurements of calibrated Marinelli comparator standards on detector surface showed that the dependence of log Eff vs. log E is almost linear in the 120 keV to 1500 keV range. The data can be fitted more accurately by assuming a parabolic correlation (log Eff vs. log E). The validity of these standards was checked by determining the concentration of radio-europium, radio-cesium and Ra-226 in three certified reference standard materials. The results obtained agreed well with the published certified data. The limit of detection for the determination of radio-cesium by gamma-ray spectrometry under the prevailing experimental conditions is 0.1 Bq (2.7 pCi), for 0.5 kg of environmental samples.", journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment", title = "Calibration of Marinelli vessels for measurement of radioactive environmental samples", volume = "385", number = "2", pages = "376-380", doi = "10.1016/S0168-9002(96)01042-X" }
Lavi, N., Alfassi, Z. B.,& Drndarski, N. D.. (1997). Calibration of Marinelli vessels for measurement of radioactive environmental samples. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 385(2), 376-380. https://doi.org/10.1016/S0168-9002(96)01042-X
Lavi N, Alfassi ZB, Drndarski ND. Calibration of Marinelli vessels for measurement of radioactive environmental samples. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 1997;385(2):376-380. doi:10.1016/S0168-9002(96)01042-X .
Lavi, Natan, Alfassi, Zeev B., Drndarski, Nina D., "Calibration of Marinelli vessels for measurement of radioactive environmental samples" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 385, no. 2 (1997):376-380, https://doi.org/10.1016/S0168-9002(96)01042-X . .