Variations in dose distribution and optical properties of Gafchromic(TM) EBT2 film according to scanning mode

Medical Physics
Soah ParkJin-Suck Suh

Abstract

The authors aim was to investigate the effects of using transmission and reflection scanning modes, the film orientation during scanning, and ambient room light on a dosimetry system based on the Gafchromic(TM) EBT2 film model. For calibration, the films were cut to 3 × 3 cm(2) and irradiated from 20 to 700 cGy at the depth of maximum dose using 6 and 10 MV photon beams in a 10 × 10 cm(2) field size. Absolute dose calibration of the linear accelerator was done according to the TRS398 protocol. An FG65-G ionization chamber was used to monitor the dose while irradiating the films in solid water. The film pieces were scanned with an EPSON Expression 1680 Pro flatbed scanner in transmission and reflection modes. Authors investigated the effect of orientation on films and examined the optical properties of EBT2 film using an ellipsometer and an ultraviolet (UV)/visible spectrometer to explain the dosimetric dependence of the film on orientation during the scanning process. To investigate the effect of ambient room light, films were preirradiated in 6 and 10 MV photon beams with intensity-modulated radiotherapy (IMRT) quality assurance (QA) plans, and then exposed to room light, either directly for 2 days in a workroom or for 2 month...Continue Reading

References

Nov 1, 1996·Medical Physics·A S MeigooniS R Szeglin
Jan 22, 1998·Medical Physics·N V KlassenJ Cygler
Sep 12, 2002·Physics in Medicine and Biology·H AlvaM E Brandan
Jan 24, 2003·Journal of Applied Clinical Medical Physics·Nzhde AgazaryanJohn J DeMarco
Sep 5, 2003·Physics in Medicine and Biology·Martin J ButsonDean Inwood
Aug 18, 2005·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Martin J ButsonPeter K N Yu
Aug 27, 2005·Medical Physics·Slobodan DevicChristopher G Soares
Oct 6, 2005·Physics in Medicine and Biology·Tsang CheungPeter K N Yu
May 16, 2006·Medical Physics·S DevicChristopher G Soares
Oct 25, 2006·Australasian Physical & Engineering Sciences in Medicine·M J ButsonP K N Yu
Dec 13, 2006·Medical Physics·Omar A ZeidanKatja M Langen
Feb 1, 2007·Physics in Medicine and Biology·J HerzenR Schmidt
Jul 25, 2008·Medical Physics·J Kalef-Ezra, K Karava
Sep 10, 2008·Medical Physics·Sou-Tung Chiu-TsaoJohn Munro
Nov 19, 2008·Physics in Medicine and Biology·Mária MartisíkováOliver Jäkel
Apr 30, 2009·Australasian Physical & Engineering Sciences in Medicine·M J ButsonP K N Yu
May 23, 2009·Zeitschrift für medizinische Physik·Frank SchneiderLoris Menegotti
Jul 21, 2009·Medical Physics·Hugo BouchardIwan Kawrakow
Feb 23, 2010·Australasian Physical & Engineering Sciences in Medicine·M J ButsonH Alnawaf
Feb 23, 2010·Optics Express·Linghui RaoShin-Tson Wu
Jun 10, 2010·Medical Physics·Slobodan DevicJan Seuntjens
Sep 14, 2010·Medical Physics·Saad AldelaijanJan Seuntjens
Sep 21, 2010·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·S VandanaY S Mayya
Apr 6, 2011·Australasian Physical & Engineering Sciences in Medicine·T AlandJ Kenny
Jan 1, 2010·Reports of Practical Oncology and Radiotherapy : Journal of Greatpoland Cancer Center in Poznań and Polish Society of Radiation Oncology·Satish C UniyalSunil D Sharma
Jul 1, 2005·Medical Physics·Slobodan DevicChristopher G Soares

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Citations

Jan 7, 2014·Medical Physics·I MéndezB Casar
Jul 5, 2013·Medical Physics·Luis Isaac Ramos Garcia, José Fernando Pérez Azorin
Jun 26, 2013·Australasian Physical & Engineering Sciences in Medicine·Dedri O'ReillyFreek C P du Plessis
Jul 3, 2016·Medical Physics·Matteo TamponiPiergiorgio Marini
Aug 4, 2016·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·José Fernando Pérez AzorinJulio F Almansa
Dec 11, 2014·Journal of Applied Clinical Medical Physics·Ahmad NobahBelal Moftah
Apr 4, 2017·Medical Physics·Maarten B CallensKoen Van Den Abeele
Dec 23, 2015·Physics in Medicine and Biology·L J van BattumS Heukelom
Apr 23, 2013·Physics in Medicine and Biology·S AldelaijanS Devic

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