书目名称 | Collimator-Based Tracking with an Add-On Multileaf Collimator | 副标题 | Modification of a co | 编辑 | Andreas Böhler | 视频video | http://file.papertrans.cn/230/229609/229609.mp4 | 概述 | Includes supplementary material: | 丛书名称 | BestMedDiss | 图书封面 |  | 描述 | .In this thesis, a tracking system was developed by modifying an add-on collimator, the Siemens Moduleaf, for realtime applications in radiotherapy. As the add-on collimator works almost completely autonomously of the linear accelerator (LinAc), no modifications to the latter were necessary. The adaptations to the Moduleaf were mainly software-based. In order to reduce the complexity of the system, outdated electronic parts were replaced with newer components where practical..Verification was performed by measuring the latency of the system as well as the impact on applied dose to a predefined target volume, moving in the leaf‘s travel direction. Latency measurements in software were accomplished by comparing the target and current positions of the leaves. For dose measurements, a Gafchromic EBT2 film was placed beneath the target 4D phantom, in between solid water plates, and moved alongside with it..Based on the results, a tracking-capable add-on collimator seems to be a useful tool for reducing the margins for the treatment of small, slow-moving targets..Radiotherapy is one of the most important methods used for the treatment of cancer. Irradiating a moving target is also one of | 出版日期 | Book 2016 | 关键词 | 4D Phantom and Measurements; Multileaf Collimator; Radiotherapy; Software Adaptations and Software Impl | 版次 | 1 | doi | https://doi.org/10.1007/978-3-658-10658-4 | isbn_softcover | 978-3-658-10657-7 | isbn_ebook | 978-3-658-10658-4Series ISSN 2626-7659 Series E-ISSN 2626-7667 | issn_series | 2626-7659 | copyright | Springer Fachmedien Wiesbaden 2016 |
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