Practical use of Gafchromic(®) EBT films in electron beams for in-phantom dose distribution measurements and monitor units verification

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)
Jad El BaroukyJean-Claude Rosenwald

Abstract

The possibility of using the Gafchromic(®) EBT films parallel to incident electron beams was assessed in order to facilitate quality assurance tests for electron dose calculation algorithms. Calibration curves were made for electron energies of 6, 9 and 12MeV. A set-up was suggested for EBT film irradiation parallel to the beam, and the dose measurements were compared to Ionization Chamber (IC) measurements in standard and small electrons beams. A more complex Quality Assurance (QA) set-up was performed with the cylindrical CARPET(®) phantom in order to test our Treatment Planning System (TPS) (Eclipse, Varian Medical Systems, Palo Alto, California) for the clinical situation of a chest wall electron beam therapy. Two dimensional dose distribution and gamma index results were compared to the calculated distribution given by the TPS. The reproducibility was found to be better than 1.5%. We found that applying strong pressure and aligning carefully the film edge with the phantom surface, as recommended for radiographic films, did not completely eliminate the air gap effect. Adding an ultrasound transmission gel and 2 complementary EBT films on the surface gave satisfactory results. The absolute dose for the reference 10×10cm(2) f...Continue Reading

References

May 1, 1986·Medical Physics·A Niroomand-RadD F Grimm
Mar 1, 1974·Medical Physics·A FeldmanP R Almond
Jun 1, 2001·Physics in Medicine and Biology·N SuchowerskaP Metcalfe
Feb 14, 2002·Physics in Medicine and Biology·Tsang CheungPeter K N Yu
Dec 13, 2002·Physics in Medicine and Biology·Martin J ButsonPeter Metcalfe
Dec 4, 2003·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Mario CioccaUmberto Veronesi
Oct 19, 2004·Medical Physics·Slobodan DevicAngel Elizondo
Jun 24, 2005·Physics in Medicine and Biology·M J ButsonP K N Yu
Aug 16, 2005·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Sofie GillisBen J Mijnheer
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
Jun 16, 2006·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Tsang CheungPeter K N Yu
Oct 25, 2006·Australasian Physical & Engineering Sciences in Medicine·M J ButsonP K N Yu
Dec 1, 2006·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·A SankarJ Velmurugan
Dec 13, 2006·Medical Physics·Omar A ZeidanKatja M Langen
Dec 13, 2006·Medical Physics·Christian FiandraFrancesco Lucio
Dec 22, 2006·Physics in Medicine and Biology·L PaelinckC De Wagter
Jun 15, 2007·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)·A BufacchiL Begnozzi
Jun 26, 2007·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Fan-Chi SuNiko Papanikolaou
Jul 28, 2007·Medical Physics·Ellen E Wilcox, George M Daskalov
Aug 1, 2007·Physics in Medicine and Biology·Martina FussDietmar Georg
Jun 24, 2008·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Teboh F RolandNiko Papanikolaou

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Citations

May 30, 2014·Journal of Medical Physics·Andrea GirardiMaria Grazia Ruo Redda
Jun 17, 2015·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)·Filipa CostaOlga Sousa
Jan 8, 2015·Medical Physics·J A Martín-Viera CuetoP Galán Montenegro
Mar 21, 2017·Physics in Medicine and Biology·Katsunori YogoKazushige Hayakawa
Sep 30, 2020·Medical Physics·Azam Niroomand-RadMaria F Chan
Apr 20, 2019·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)·Pierre LansonneurLudovic De Marzi

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