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0215U007730,
0115U000956
,
Development of rapid methods of radiological controls and their application for the determination of absorbed dose levels in the Chernobyl zone
Danevich Fedor,
30-12-2015
Scientific Center "Institute for Nuclear Research" of National Academy of Sciences of Ukraine
The set-up for low-background scintillation measurements of radioactive contamination of samples for the purpose of radiological monitoring to determine the level of absorbed dose in the Chernobyl zone is designed and assembled. Mathematical modeling methods of light collection in scintillation detectors using software packages Geant4, Zemax and Litrani are developed and tested in the experiment . The effect of tungsten doping and excess of molybdenum on the scintillation properties of zinc molybdate crystals is studied. Low-temperature scintillating bolometers with calcium molybdate crystals for the study of rare nuclear decays are developed and tested. The concept of large cryogenic scintillation detector is developed for the study of rare nuclear decays and measurements of radioactive contaminations of scintillation crystals and materials for low background set-ups. The distribution of radioactive thorium and radium contaminations in zinc tungstate scintillators at the sensitivity level of 0.01 mBq/kg as promising detectors for the study of radioactive contamination of environmental samples. Radioactive contaminations of a cadmium tungstate scintillator (CdWO4) with enriched isotopes of cadmium-106 and 116 is investigated with aim to develop low-background scintillation detectors based on CdWO4 scintillators. The methods of purification of cerium oxide from thorium impurities are developed with aim to develop cerium-contained scintillator materials to study radioactive contamination of environmental samples. The methods of mathematical modeling using Geant4 software package for estimation the levels of absorbed doses in the Chernobyl zone are developed.
Бойко Роман Сергійович
Даневич Федор Анатолiйович
Зуєва Олена Володимирівна
Кобичев Владислав Валерійович
Кобичева Лариса Миколаївна
Кропив'янський Борис Миколайович
Мокіна Валентина Михайлівна
Пода Денис Валентинович
Поліщук Оксана Григорівна
Тимошенко Андрій Іванович
Третяк Володимир Iллч
Черняк Дмитро Миколайович
2020-04-02
Updated: 2025-12-08
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