Radiochromic film dosimetry: Reflection vs transmission scanning
- Medical Physics Laboratories of the Ioannina University School and the Ioannina University Hospital, 451.10 Ioannina (Greece)
The objective of this study was to compare the transmission and the reflection scanning reading modes of radiochromic MD-55 films of a document scanner. The use of the red channel of the red-green-blue images results in measurement accuracy that did not differ between the two reading modes. On the other hand, the scanner uniformity and temporal stability, the long-term stability of the film readings and the dynamic range is superior using the reflection mode. The dynamic range of dose measurements can be extended up to least 500 Gy using the alternative color channels by both reading techniques. Similar backscattering dose factors close to high Z inhomogeneities were found using both scanning modes. In conclusion, the use of reflection scanning mode of MD55 films was superior to the traditionally used transmission mode.
- OSTI ID:
- 21120750
- Journal Information:
- Medical Physics, Journal Name: Medical Physics Journal Issue: 6 Vol. 35; ISSN 0094-2405; ISSN MPHYA6
- Country of Publication:
- United States
- Language:
- English
Similar Records
A protocol for EBT3 radiochromic film dosimetry using reflection scanning
Optimizing the dynamic range extension of a radiochromic film dosimetry system
Gafchromic EBT2 film dosimetry in reflection mode with a novel plan-based calibration method
Journal Article
·
Sun Dec 14 23:00:00 EST 2014
· Medical Physics
·
OSTI ID:22403184
Optimizing the dynamic range extension of a radiochromic film dosimetry system
Journal Article
·
Sat Feb 14 23:00:00 EST 2009
· Medical Physics
·
OSTI ID:22098427
Gafchromic EBT2 film dosimetry in reflection mode with a novel plan-based calibration method
Journal Article
·
Mon Jan 14 23:00:00 EST 2013
· Medical Physics
·
OSTI ID:22099175