Passive SOBP generation from a static proton pencil beam using 3D-printed range modulators for FLASH experiments
نویسندگان
چکیده
The University Proton Therapy facility in Dresden (UPTD), Germany, is equipped with an experimental room a beamline providing static pencil beam. High proton beam currents can be achieved at this which makes it suitable for FLASH experiments. However, the established setup uses only entrance channel of Bragg curve. In work, set 3D-printed range modulators designed to generate spread out peaks (SOBPs) radiobiological experiments ultra-high dose rate described. A new method optimize specifically case based on central depth profile introduced. Modulators two different irradiation setups were produced and characterized experimentally by measurements lateral distributions using detectors. addition, Monte Carlo simulations performed assess profiles averaged linear energy transfer ( LET D ) water. These newly will allow future SOBP UPTD setups.
منابع مشابه
Golden beam data for proton pencil-beam scanning.
Proton, as well as other ion, beams applied by electro-magnetic deflection in pencil-beam scanning (PBS) are minimally perturbed and thus can be quantified a priori by their fundamental interactions in a medium. This a priori quantification permits an optimal reduction of characterizing measurements on a particular PBS delivery system. The combination of a priori quantification and measurements...
متن کاملFast Pencil Beam Dose Calculation for Proton Therapy Using a Double-Gaussian Beam Model
The highly conformal dose distributions produced by scanned proton pencil beams (PBs) are more sensitive to motion and anatomical changes than those produced by conventional radiotherapy. The ability to calculate the dose in real-time as it is being delivered would enable, for example, online dose monitoring, and is therefore highly desirable. We have previously described an implementation of a...
متن کاملProton Radiography study using a passive scattered beam
The use of high-energy proton beams enables to delivering high doses to target volumes, while sparing organs at risk compared to X-ray radiotherapy. However, the protons advantages cannot be fully exploited because the range (i.e the stopping powers) of protons in matter is not accurately known. Indeed, the proton stopping powers are obtained by an empirical conversion of X-CT Hounsfield Units ...
متن کاملA Monte Carlo pencil beam scanning model for proton treatment plan simulation using GATE/GEANT4.
This work proposes a generic method for modeling scanned ion beam delivery systems, without simulation of the treatment nozzle and based exclusively on beam data library (BDL) measurements required for treatment planning systems (TPS). To this aim, new tools dedicated to treatment plan simulation were implemented in the Gate Monte Carlo platform. The method was applied to a dedicated nozzle fro...
متن کاملDynamic Delivery Planning in Iba Proton Pencil Beam
Pencil Beam Scanning is a dynamic beam delivery system developed for proton therapy. The radiation field necessary to reach in a fast and robust way a prescribed 3D dose distribution is obtained by accurately controlling both the extraction of the beam from a 235 MeV accelerator and the motion of the beam spot thanks to scanning magnets. This paper focuses on the trajectory planning aspect of t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Physics
سال: 2023
ISSN: ['2296-424X']
DOI: https://doi.org/10.3389/fphy.2023.1213779