Beam commissioning data and Quality assurance test for Linear accelerator
Journal Title: Journal of Indira Gandhi Institute of Medical Sciences - Year 2015, Vol 1, Issue 2
Abstract
Abstract: During commissioning of a modern linear accelerator (LINAC) for clinical and research purpose, medical physicists were faced with many challenges, like a variety of scientific testing methods, data accuracy etc. Since final beam data obtained during commissioning are treated as references and ultimately used for radiotherapy treatment, it is vital that collected data are of very high quality. The scientific procedure used for commissioning of LINAC at Mahavir Cancer Santhan,Patna has been described in detail in this article. The maximum beam energy of this LINAC is 15 MV for photons and 12 MeV for electrons. The approximate flux of the source are of the order 1018 photons/sec and 1020 electrons/sec with a highest delivery dose rate of 500 cGy/min for photons and 400 cGy/min for electrons at the dose maximum point in the water phantom. In this article, a complete set of measured data of the LINAC has been presented. The measured radiation data are within permissible limit. A modern linear accelerator has been commissioned and is being used for therapeutic purposes and material modification by irradiation since last three years. Some successful applications in the field of treatment and material modification of the machine have also been presented in this article.
Authors and Affiliations
Mukesh Kr. Zope, Deepali Patil, Rajesh Kumar Singh, B. B. Prasad
Keywords
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