Gamma radiography with 75Se sources: consequences of a violent fire
| Autor: | C. Ballaux |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Adult
Epidemiology business.industry Chemistry Health Toxicology and Mutagenesis Radiography Selenium Radioisotopes Analytical chemistry food and beverages Mineralogy Type (model theory) Iridium Radioisotopes Radiation Dosage Fires Radiation Protection Air Pollutants Radioactive Gamma Rays Humans Radiology Nuclear Medicine and imaging business Dispersion (chemistry) Radioactive Hazard Release Health Physics |
| Zdroj: | Health physics. 78(3) |
| ISSN: | 0017-9078 |
| Popis: | Due to the volatile nature of selenium and selenium dioxide, an important atmospheric dispersion of {sup 75}Se can occur in case of a violent fire (>800 C). This type of accident is possible when transporting or using a highly active {sup 75}Se source for gamma radiography. The consequences of this dispersion are analyzed. From the point of view of radiological protection, it can be concluded that in radiography the unprotected {sup 75}Se sealed sources have to resist for 1 h to a temperature of 1,200 C. If this is not the case, x-ray equipment and {sup 192}Ir sources have to be preferred above {sup 75}Se sources. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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