نتایج جستجو برای: varian accelerator
تعداد نتایج: 18438 فیلتر نتایج به سال:
BACKGROUND Volumetric-modulated arc therapy (VMAT) can only be implemented on the new generation linacs such as the Varian Trilogy® and Elekta Synergy®. This prevents most existing linacs from delivering VMAT. The purpose of this study was to investigate the feasibility of using a conventional linear accelerator delivering constant dose rate and constant angular spacing intensity-modulated arc ...
The purpose of this application note is to demonstrate the possibilities of the 2D-ARRAY seven29 from PTW in combination with the VeriSoft analysis software as a dosimetric verification tool of clinical IMRT fields. For this demonstration, the Varian IMRT system is used, which consists of the IMRT treatment planning system Eclipse Helios V7.2.24 and Varian Clinac accelerators, which are equippe...
background: attenuation coefficient (μ) plays an important role in calculations of treatment planning systems, as well as determination of dose distributions in external beam therapy, dosimetry, protection, phantom materials and industry. so, its exact measurement or calculation is very important. the aim of this study was to evaluate the μ in different points in the water phantom analytically ...
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 magnet...
In This paper we will introduce the process of design and manufacturing an electron accelerator with 10MeV energy and 100kW power as the first Iranian powerful industrial electron accelerator. This accelerator designed based on modeling of one of the most powerful industrial accelerator called Rhodotron. But the design of the accelerator in a way that can be localize by relying on domestic indu...
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