نتایج جستجو برای: medical linear accelerator
تعداد نتایج: 1071440 فیلتر نتایج به سال:
BackgroundOne of the most significant Intensity Modulated Radiation Therapy treatment benefits is a high target to normal tissue dose ratio. To improve this advantage, an additional accessory such as a compensator is used to delivering doses. Compensator-based IMRT treatment is usually operated with an energy higher than 10 MV. Photoneutrons, which have high linear energy transfer and radiobiol...
In April 1957, Stanfc:rd University proposed the construction of a two-mile long linear electron accelerator capable of accelerating electrons to energies of 10 to 20 CeV for use in physics research. Congressional authorization for this machine was given in September 1961, and construction of the Stanford Linear Accelerator Center (SLAC) started in July 1962 on 480 acres of land near Stanford U...
PURPOSE To investigate the improvement of combined monoscopic/stereoscopic prostate motion monitoring with room-mounted dual x-ray systems by adopting patient specific methods. METHODS The linac couch was used as a motion stage to simulate 40 highly dynamic real patient prostate trajectories. For each trajectory, 40 s pretreatment and 120 s treatment periods were extracted to represent a typi...
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