EVALUATION OF DOSE IN SLEEP BY MATTRESS CONTAINING MONAZITE
| Autor: | Bong-Gi Kim, Kyu-Hwan Jeong, Hyeong-Ki Shin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Adolescent Beds Radiation Dosage 030218 nuclear medicine & medical imaging 03 medical and health sciences Young Adult 0302 clinical medicine Age groups Radiation Monitoring Republic of Korea Humans Radiology Nuclear Medicine and imaging Child Aged Aged 80 and over Radionuclide Radiation Radiological and Ultrasound Technology Phantoms Imaging Radiochemistry Thorium Public Health Environmental and Occupational Health Infant General Medicine Middle Aged Radiation Exposure Age specific Radon Progeny Air Pollutants Radioactive Radon 030220 oncology & carcinogenesis Monazite Air Pollution Indoor Child Preschool Dose assessment Environmental science Uranium Female Metals Rare Earth Sleep Dose conversion |
| Zdroj: | Radiation protection dosimetry. 187(3) |
| ISSN: | 1742-3406 |
| Popis: | Some companies in Korea have sold beds which contain a processed product containing monazite powder. Consumers may receive external exposure by radiation emitted by progeny radionuclides in uranium and thorium, and internal exposure through the breathing of radon progeny radionuclides produced in the decay chain. Thus, in this study, age specific dose conversion factors (mSv y−1 Bq−1) by external exposure and dose conversion factors by internal exposure (mSv y−1 per Bq m−3) were derived. Besides, a dose assessment program were developed to calculate dose by taking into account real conditions. And the age specific dose was evaluated using the radioactive concentration measured by the NSSC. As a results, external exposure was assessed to get effective doses in the range of 0.00086 to 0.0015 mSv y−1 by external exposure and a committed effective doses in the range of 1.3 to 12.26 mSv y−1 by internal exposure for all age groups. |
| Databáze: | OpenAIRE |
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