Mass Internal Exposure Monitoring of Population in Russia After the Chernobyl Accident
| Autor: | G.N. Kaidanovsky, T. Jesko, Irina Zvonova, Mikhail Balonov, G.Ya. Bruk |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
education.field_of_study
Radionuclide Radiation Radiological and Ultrasound Technology business.industry Population Public Health Environmental and Occupational Health General Medicine Contamination Atmospheric sciences Radioactive contamination Environmental science Dosimetry Radiology Nuclear Medicine and imaging Radiation protection Nuclear medicine business education Isotopes of caesium Background radiation |
| Zdroj: | Radiation Protection Dosimetry. 89:173-178 |
| ISSN: | 1742-3406 0144-8420 |
| Popis: | The organisation and carrying out of mass monitoring of radionuclide activity in the inhabitants of Russian regions contaminated with radionuclides after the Chernobyl accident are here reviewed. Methods to calibrate 131 I in the thyroid and 134-137 Cs in the whole body are presented. Dependence of calibration factors for monitoring of 131 I in thyroid, and 134 Cs and 137 Cs in a whole body on age, body mass and size are presented. The shielding of the background radiation by a human body influences significantly the measurement result. It depends on the chosen measurement geometry, the energy range applied, the spectrum of background radiation, mass and dimensions of the measured person. 131 I content in the thyroid should be calculated from the measurement results taking into account the contribution of radiation from radionuclides distributed in the body. Neglect of this factor could result in an overestimation of 131 I content in the thyroid up to a factor of 2 to 4. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|