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- Title
Optimizing the dynamic range extension of a radiochromic film dosimetry system.
- Authors
Devic, Slobodan; Tomic, Nada; Soares, Christopher G.; Podgorsak, Ervin B.
- Abstract
The authors present a radiochromic film dosimetry protocol for a multicolor channel radiochromic film dosimetry system consisting of the external beam therapy (EBT) model GAFCHROMIC™ film and the Epson Expression 1680 flat-bed document scanner. Instead of extracting only the red color channel, the authors are using all three color channels in the absorption spectrum of the EBT film to extend the dynamic dose range of the radiochromic film dosimetry system. By optimizing the dose range for each color channel, they obtained a system that has both precision and accuracy below 1.5%, and the optimized ranges are 0–4 Gy for the red channel, 4–50 Gy for the green channel, and above 50 Gy for the blue channel.
- Subjects
SPECTRUM analysis; PHOTOGRAPHIC dosimetry; ELECTRONIC equipment; STRUCTURAL optimization; ABSORPTION spectra
- Publication
Medical Physics, 2009, Vol 36, Issue 2, p429
- ISSN
0094-2405
- Publication type
Article
- DOI
10.1118/1.3049597