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A study of the effect of in-line and perpendicular magnetic fields on beam characteristics of electron guns in medical linear accelerators

By Dragoş E. Constantin, Rebecca Fahrig and Paul J. Keall


Purpose: Using magnetic resonance imaging (MRI) for real-time guidance during radiotherapy is an active area of research and development. One aspect of the problem is the influence of the MRI scanner, modeled here as an external magnetic field, on the medical linear accelerator (linac) components. The present work characterizes the behavior of two medical linac electron guns with external magnetic fields for in-line and perpendicular orientations of the linac with respect to the MRI scanner

Topics: Magnetic Resonance Physics
Publisher: American Association of Physicists in Medicine
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Provided by: PubMed Central
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