A study on the effect of using a flattening filter in a medical linear accelerator on the dose distribution

Kim, Young-Jae; Dong, Ke; Chung, Woon-Kwan; Lim, Chang-Seon; Jeong, Cheon-Soo; Seo, Yoon-Jeong

doi:10.3938/jkps.64.917

Cited by 1 publication

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“…As a result, compared to the backscattering of 10×10 cm², the backscattering for the field size of 20×20 cm² was more the 4.5. and this is in agreement with other experimental results [32]. The incrassating in relative dose was produced by flattening filter design and geometry [33][34][35]. On the other hand, the agreement between measurement and computation beam profile doses becomes better with increasing field size.…”

Section: Resultssupporting

confidence: 91%

Measuring and Assessing the Effect of a Carbon Fiber Couch on Radiotherapy Dose Distribution

Hashem,

Alassdei,

Abu Sehly

et al. 2024

Assiut University Journal of Multidisciplinary Scientific Resea

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Provide a maximum of 4-6 keywords, avoiding general and plural terms, TNR 10 font A vital device for administering radiotherapy, especially intensitymodulated radiation treatment (IMRT) is the Central Opening Carbon-Fiber Couch. There doesn't seem to be any evidence in the literature about the impact of the thickest section (edge couch) on the dose distribution, even though multiple tests were conducted with the radiation field incident on the center of the couch. In this study, we evaluated and improved the computed beam profile doses for the under-couch fields for various field sizes for energy 6MV to reduce the skin surface dosage.The beam profile dose was determined using OCTAVIUS detector 1500 with OCTAVIUS 4D modular phantom and Elekta's Monaco 5.11.03Treatment Planning System (TPS) using three calculating algorithms:Collapsed Cone (CC), Monte Carlo (MC), and pencil beam (PB).As the radiation treatment beam traverses through the treatment CONNEXION central opening couch, the radiation treatment beam passes

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