Year
2017
Degree Name
Master of Science - Research
Department
School of Physics
Abstract
Radiotherapy requires quality assurance of patient radiation dose delivery. Gafchromic® radiochromic film is used as a dosimeter to validate these deliveries. This research explores Histogram Correlation as a calibration tool for Gafchromic® radiochromic film in verification of dose, for both magnitude and spatial distribution. This led to the development of a practical method for the use of Gafchromic® radiochromic film for use in Radiotherapy IMRT QA. The basis of this method is that a derived function of the scan data [(Blank/Exposed)-1] is directly proportional to the dose the film has been exposed to. This allows calibration by the definition of only one parameter, the constant of proportionality.
Recommended Citation
Bennie, Nick, Novel radiation dose calibration methods for Gafchromic film: Exploring Histogram Correlation and Linearisation, Master of Science - Research thesis, School of Physics, University of Wollongong, 2017. https://ro.uow.edu.au/theses1/56
Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.