Evaluation of Megavoltage Beam Attenuation by Imaging Couch Top


Naoki Hayashi, MSc, from Nagoya Radiosurgery Centre, Nagoya Kyoritsu Hospital presents an evaluation of megavoltage beam attenuation by imaging couch top, beginning with Novalis. He discusses the types of correction to attenuation (simulation-based and dosimetry-based) before delving into the evaluation elements, methods and conclusions.


Video Transcript

Good afternoon. My mouth is so tired and rambling because of today's brain jogging, are you okay? Yes, good. My presentation is starting. What do you use? How do you use? Thanks. Thank you for chairman. Imaging Couch Top for Novalis is, needless to say, the using for robotic 6D correction system. Exact couch base and Imaging Couch Top unit control each translation shifts and correction angles, respectively. And from several investigators, X-rays attenuation was occurred by solid carbon-based fixation tools. I think there are two methods for correction to attenuation. At first, simulation-based correction, that is, corrected by RTPs...

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