Environmental measurements at the Savannah River Site with underwater gamma detectors
| Autor: | Willard G. Winn |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Hydrology
Radionuclide business.industry Health Toxicology and Mutagenesis Savannah River Site Detector Public Health Environmental and Occupational Health Cooling pond Pollution Analytical Chemistry Nuclear Energy and Engineering Environmental measurement Environmental science Radiology Nuclear Medicine and imaging Underwater Nuclear medicine business Hpge detector Effluent Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry Articles. 194:345-350 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | Underwater NaI(T1) and HPGe detectors are used in the environmental measurements programs at the Savannah River Site (SRS). A 22.9 cm × 10.2 cm NaI(T1) detector on the Savannah River continuously monitors effluent releases from both SRS (DOE) and Plant Vogtle (Georgia Power). Correlations with known releases indicate a sensitivity of 4 mBq/l for58Co with 1500 min spectra; such levels are well below those of hazardous or legal concern. A 30%-efficient HPGe detector has appraised radionuclides in SRS cooling pond sediments; the dominant gamma-emitting radionuclide detected was137Cs, at levels ranging up to 2.0 MBq/m2. The pond activities were adequately quantified by 1 min counts with the HPGe detector; resulting contour maps of sediment137Cs provided guidance for partially draining the ponds for dam repairs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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