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The Medical Radiology and Radiation Safety journal ISSN 1024-6177 was founded in January 1956 (before December 30, 1993 it was entitled Medical Radiology, ISSN 0025-8334). In 2018, the journal received Online ISSN: 2618-9615 and was registered as an electronic online publication in Roskomnadzor on March 29, 2018. It publishes original research articles which cover questions of radiobiology, radiation medicine, radiation safety, radiation therapy, nuclear medicine and scientific reviews. In general the journal has more than 30 headings and it is of interest for specialists working in thefields of medicine¸ radiation biology, epidemiology, medical physics and technology. Since July 01, 2008 the journal has been published by State Research Center - Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency. The founder from 1956 to the present time is the Ministry of Health of the Russian Federation, and from 2008 to the present time is the Federal Medical Biological Agency.
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Medical Radiology and Radiation Safety. 2023. Vol. 68. № 5
DOI:10.33266/1024-6177-2023-68-5-19-27
V.V. Vostrotin
Integration of Icrp Oir Models Into the iDose 2 Dosimetry System
Southern Urals Biophysics Institute, Ozyorsk, Russia
Contact person: V.V. Vostrotin, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Introduction: The iDose 2 dosimetry system is a tool for assessing the doses of internal irradiation of workers under the current individual dosimetry control (IDC). In this system, according to a series of measurements of the activity of radionuclides in biological objects (including those not exceeding the detection limit of the measurement technique) and information on contact times and types of compounds, estimates of the committed effective dose equivalent (CEDE) of internal irradiation, as well as their uncertainties, are made based on the Bayesian approach. It is possible to integrate practically any biokinetic models of the behavior of radionuclides in the human body, presented in the form of a system of ordinary differential equations (ODEs) with constant transition coefficients between compartments, into the iDose 2 dosimetry system without changing the source code.
Purpose: Integration of new combined biokinetic models for the list of radionuclides: H-3, Sr-90, Cs-137, Pu-238, Pu-239 and Am-241 from Publications 100, 130, 134, 137 and 141 of the ICRP (conventionally called the series Occupational Intakes of Radionuclides (OIR)), for ingestion and inhalation routes of intake with AMAD = 1 and 5 microns.
Material and methods: For each variant of the biokinetic model, the functions of retention/removal of radionuclides were found through the eigenvectors and eigenvalues of the matrix describing the ODE system.
Results: A total of 65 new biokinetic models and 180 functions of radionuclide retention/removal in the form of a sum of exponents were integrated and quality control was carried out.
Keywords: internal exposure, biokinetic model, individual dosimetry control, Occupational Intakes of Radionuclides (OIR), ICRP, dosimetry system iDose 2, integration of models
For citation: Vostrotin VV. Integration of Icrp Oir Models Into the iDose 2 Dosimetry System. Medical Radiology and Radiation Safety. 2023;68(5):19–27. (In Russian). DOI:10.33266/1024-6177-2023-68-5-19-27
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PDF (RUS) Full-text article (in Russian)
Conflict of interest. The author declares no conflict of interest.
Financing. The work was carried out within the framework of the research project “Improving control methods and studying the peculiarities of the formation of internal radiation doses of the personnel of FSUE “PO “Mayak” and the population of adjacent territories”, cipher “Luch-22”, funded by the FMBA of Russia.
Contribution. Conceptual development, creation of R scripts, mathematical calculations and their quality control were carried out by one author.
Article received: 20.04.2023. Accepted for publication: 27.05.2023.