A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
View: 61
This Paper With 10 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JBPE-10-5_011
تاریخ نمایه سازی: 30 دی 1402
Abstract:
Background: Intensity Modulated Radiation Therapy (IMRT) technique is an advanced method of radiotherapy leading into the development of Flattening Filter-Free (FFF) medical linear accelerators (Linacs). Monte Carlo simulation has been a standard method for calculation of particle transport due to precise geometry and material specifications. Objective: This study is to obtain the design optimization of Flattening Filter Free (FFF) for ۶ MV Linac machine.Material and Methods: In this simulating study, EGSnrc user code was used to simulate particles emitted from head of linac ۶MV Varian to achieve the most suitable filter in FFF linac design. Monte Carlo simulation results of the PDD and profile, on the ۱۰ × ۱۰ cm۲ field, were compared with the measurements. Differences in small profile beams from Monte Carlo simulation were also evaluated between FF and FFF linac. Results: The spectrum on Monte Carlo simulation in isocenter was compared with Treatment Planning System (TPS) for each filter variation. The slight differences of average spectrum are simulated using ۲ mm copper filter and FakeBeam with -۱.۵۲ ± ۳.۸۲% and -۳.۱۳ ± ۳.۶۱%. Whereas, for PDD and profiles, each variation has an average difference of ۷.۱۰ ± ۰.۷۰% and -۵.۹۹ ± ۱.۳۹%. Conclusion: FakeBeam filter is a proper filter for the use of linac design ۶MV Varian. It is necessary to decrease the kinetic energy of electrons to perform MC simulations on FFF linac.
Keywords:
Authors
S A Pawiro
PhD, Department of Physics, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, Indonesia
A Azzi
MSc, Department of Physics, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, Indonesia
D S Soejoko
PhD, Department of Physics, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, Indonesia
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :