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http://www.repositorio.cdtn.br:8080/jspui/handle/123456789/595| Title: | Measurement of conversion coefficients between free in air kerma and personnel dose equivalent for diagnostic x-ray beams |
| Title of periodic: | Radiation Measurement |
| Authors: | Rosado, P.H.G Nogueira, Maria do Socorro |
| Affiliation: | Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil |
| Issue Date: | 2008 |
| Keywords: | Kerma;radiation doses;dose equivalents;thermoluminescent dosimetry |
| Abstract: | Conversion coefficients between free in air kerma and personal dose equivalent were experimentally determined for the diagnostic X-ray qualities recommended by the International Electrotechnical Commission (IEC) for primary beams (RQR) and three RQA. Harshaw LiF-100H thermoluminescent dosemeters (TLD) were used for measurements after being calibrated against an ionization chamber traceable to the National Metrology Laboratory. A 300mmž300mmž150mm polymethilmethacrylate (PMMA) slab phantom was used for deep-dose measurements. The dosemeters were placed in the central axis of the X-ray beam at five different depths in the phantom (5, 10, 15, 25 and 35 mm) upstream the beam direction. The typical combined standard uncertainty of conversion coefficient value was 12 . |
| Access: | L |
| Appears in Collections: | Artigo de periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Art-01_MariadoSocorro_Nogueira.pdf | 303.04 kB | Adobe PDF | View/Open |
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