MDA improvement technique for lung counter measurements of uranium workers
| Autor: | O. Pelled, A. Tshuva, U. German, G. Pollak |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Internationality
Materials science chemistry.chemical_element Radiation Dosage Models Biological Sensitivity and Specificity Lung counter Radiation Protection Nuclear Reactors Radiation Monitoring Occupational Exposure Humans Computer Simulation Radiology Nuclear Medicine and imaging Israel Lung Radiation Radiological and Ultrasound Technology business.industry Radiochemistry Public Health Environmental and Occupational Health Reproducibility of Results General Medicine Contamination Uranium Natural uranium chemistry Biological Assay Occupational exposure Radiation protection business Nuclear medicine Algorithms |
| Zdroj: | Radiation Protection Dosimetry. 125:496-499 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncm146 |
| Popis: | A practical and simple method was employed to improve the minimum detectable activity (MDA) for lung counting measurements by summing several accumulated spectra. The method was checked for natural uranium, which produces peaks due to photon energies of 63.3, 92.6 and 185.7 keV. By combining nine measurements, an overall improvement of the MDA by a factor of about 3 was achieved. Uranium contamination levels lower than the MDA of a single spectrum could be detected with acceptable accuracy when analyzing the sum spectra. Specific results are given for four workers occupationally exposed to natural uranium. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|