Journal of Applied Clinical Medical Physics· 2013Q1
Dosimetric characterization and use of GAFCHROMIC EBT3 film for IMRT dose verification
- 379citations
- Q1SCImago
- 2013year
Short summary
GAFCHROMIC EBT3 film eliminates the side orientation dependence seen in previous EBT2 films, making it suitable for IMRT dose verification.
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Key points
- GAFCHROMIC EBT3 film removes the side orientation dependence present in EBT2 films.
- EBT3 film shows similar responses to dose, scanner orientation, postirradiation coloration, energy, and dose rate as EBT2 film.
- Gamma index analysis of IMRT fields measured with EBT3 and EBT2 films confirms their comparable performance.
- The study validates EBT3 film for clinical use in IMRT dose verification.
AI-generated from the title and abstract; the full text is not read.
Abstract
Radiochromic film has become an important tool to verify dose distributions in highly conformal radiation therapy such as IMRT. Recently, a new generation of these films, EBT3, has become available. EBT3 has the same composition and thickness of the sensitive layer of the previous EBT2 films, but its symmetric layer configuration allows the user to eliminate side orientation dependence, which is reported for EBT2 films. The most important EBT3 characteristics have been investigated, such as response at high-dose levels, sensitivity to scanner orientation and postirradiation coloration, energy and dose rate dependence, and orientation dependence with respect to film side. Additionally, different IMRT fields were measured with both EBT3 and EBT2 films and evaluated using gamma index analysis. The results obtained show that most of the characteristics of EBT3 film are similar to the EBT2 film, but the orientation dependence with respect to film side is completely eliminated in EBT3 films. The study confirms that EBT3 film can be used for clinical practice in the same way as the previous EBT2 film.
The authors' abstract, as published at the source. Journal of Applied Clinical Medical Physics, 2013 · DOI ↗
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Field: Radiation
RadiationPhysics and Astronomy