Development of a Geant4-based independent patient dose validation system with an elaborate multileaf collimator simulation model
نویسندگان
چکیده
منابع مشابه
Development and performance evaluation of a high‐speed multileaf collimator
Multileaf collimator (MLC) tracking represents a promising technique for motion management in radiotherapy. However, the conflict between limited leaf speed/acceleration and the demand for tracking fast target motion is now a prominent issue. Conventional MLCs typically have a maximum leaf speed of 3-4 cm/s and a maximum leaf acceleration of 50-70 cm/s2, which are inadequate to track fast targe...
متن کاملDesign and Fabrication of the Mechanical Part of a Prototype Multileaf Collimator System
Introduction: Multileaf collimator (MLC) is state of the art among the radiation field shaping systems for conformal radiotherapy techniques. Some advantages of this system are as follow: reduction of treatment time, higher precision in conforming the radiation field to the projection of the target volume and lowering the chance of errors made by technologists. The purpose of this research was ...
متن کاملPeripheral dose distributions for a linear accelerator equipped with a secondary multileaf collimator and universal wedge
The American Association of Physicists in Medicine Task Group 36 (AAPM TG-36) data can be used to estimate peripheral dose (PD) distributions outside the primary radiation field. However, the report data does not apply to linear accelerators equipped with a multileaf collimator (MLC) and universal wedge (UW). Tertiary multileaf collimators have been shown to significantly affect PD distribution...
متن کاملMultileaf collimator shape matrix decomposition
An important method in cancer treatment is the use of high energetic radiation. In order to kill tumor cells the patient is exposed to radiation that is delivered by a linear accelerator whose beam head can be rotated about the treatment couch. Inevitably the healthy tissue surrounding the tumor is also exposed to some radiation. So the problem arises to arrange the treatment in a way such that...
متن کاملGeometric accuracy of a real-time target tracking system with dynamic multileaf collimator tracking system.
PURPOSE Dynamically compensating for target motion during radiotherapy will increase treatment accuracy. A laboratory system for real-time target tracking with a dynamic MLC has been developed. In this study, the geometric accuracy limits of this DMLC target tracking system were evaluated. METHODS AND MATERIALS A motion simulator was programmed to follow patient-derived tumor motion paths, pa...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2019
ISSN: 1526-9914
DOI: 10.1002/acm2.12530