Applicability of the LSC technique for determining 210Pb in liquid samples for purposes of dose assessment via in vitro bioassay
DOI:
https://doi.org/10.15392/bjrs.v10i2.1742Keywords:
in vitro bioassay, 210Pb, internal dosimetryAbstract
A new approach for the determination of 210Pb by liquid scintillation counting was developed by the LBIOVT. In order to assess the applicability of the technique for internal monitoring of occupationally exposed workers and members of the public, some probable scenarios for the intake of 210Pb were elaborated and evaluated in this work. The methodology developed provides detection limit values suitable for detecting activities corresponding to committed effective doses below 1 mSv in a variety of scenarios. For members of the public, the time interval between the supposed intake and the collection of the sample could be up to 240 days for daily urine collection or up to 130 days for daily faeces collection. In a monitoring program for occupational exposed workers the methodology developed could be used in a monitoring interval twice an year both for daily urine or faeces collection and the detection limits would still be able to detect activities corresponding to a committed effective doses below the recording level. It is concluded that the methodology developed is suitable to be used for monitoring individual members of the public in case of an accidental exposure or to be used in a monitoring program for occupational exposed workersDownloads
References
IAEA - International Atomic Energy Agency. Radiation Protection of the Public and the En-vironment, IAEA Safety Standards Series No. GSG-8, IAEA, Vienna (2018).
LAURIA, D. C., CARVALHO, L. L., CONTI, C. C. Comparison of different methods for 210Pb determination in environmental samples. Adv. Liq. Scintillation Spectrom. LSC 2005, 211–216, 2006.
SAMPAIO, C. S., MEDEIROS, G. C. O, MESQUITA, S. A., DANTAS, B. M., SOUSA, W. O. A new approach for the determination of 210Pb by liquid scintillation counting. Applied Ra-diation and Isotopes 156 (2020) 108972. DOI: https://doi.org/10.1016/j.apradiso.2019.108972
ICRP - International Commission on Radiation Units and Measurements. Basic Anatomical and Physiological Data for Use in Radiological Protection Reference Values. ICRP Publica-tion 89 (2002).
JULIÃO, L. M. Q. C., MELO, D. R., SOUSA, W. O., SANTOS, M. S., FERNANDES, P. C. P. Uncertainty on faecal analysis on dose assessment. Radiation Protection Dosimetry 127 (2007) 1-4 pp. 421-424 DOI: https://doi.org/10.1093/rpd/ncm481
ICRP - International Commission on Radiation Units and Measurements. Individual Monitor-ing for Internal Exposure of Workers (preface and glossary missing). ICRP Publication 78 (1997).
BERTELLI, L., MELO, D, R., LIPSZTEIN, J., CRUZ-SUAREZ, R. AIDE: Internal Dosime-try Software Radiation Protection Dosimetry, vol. 130, n. 3, pp. 358-367, 2008. DOI: https://doi.org/10.1093/rpd/ncn059
ICRP - International Commission on Radiation Units and Measurements. Compendium of Dose Coefficients based on ICRP Publication 60. ICRP Publication 119 (2012).
ICRP - International Commission on Radiation Units and Measurements. Dose Coefficients for Intakes of Radionuclides by Workers. ICRP Publication 68 (1994).
IAEA - International Atomic Energy Agency. Occupational Radiation Protection, IAEA Safety Standards Series No. GSG-7, Vienna (2018).
Published
Issue
Section
License
Copyright (c) 2022 Brazilian Journal of Radiation Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing: The BJRS articles are licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
How to Cite
