نتایج جستجو برای: varian accelerator

تعداد نتایج: 18438  

2016
Ruo-Hui Zhang Xiao-Mei Fan Wen-Wen Bai Yan-Kun Cao

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 ...

Journal: :Indonesian Journal of Cardiology 2013

2004
Jörg Bohsung

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...

Journal: :iranian journal of radiation research 0
m.j. tahmasebi birgani medical physics department, jondi shapour university of medical sciences, ahwaz, iran m.a. behrooz medical physics department, jondi shapour university of medical sciences, ahwaz, iran h. shahbazian radiation therapy department, golestan hospital, jondi shapour university of medical science, ahwaz, iran a. shams medical physics department, jondi shapour university of medical sciences, ahwaz, iran

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 ...

Journal: :Medical physics 2011
Dragoş E Constantin Rebecca Fahrig 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 magnet...

جمهوری, ابوالفضل, جوکار, کاظم, حاصل طلب, سعید, خلفی, حسین, قاسمی, فرشاد, مرتضوی, مجتبی, موسوی, سیدخلیل, پورصالح, علی محمد,

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی 1387

چکیده ندارد.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید