Commissioning a passive-scattering proton therapy nozzle for accurate SOBP delivery
نویسندگان
چکیده
منابع مشابه
A treatment planning comparison of passive-scattering and intensity-modulated proton therapy for typical tumor sites.
Intensity-modulated proton therapy (IMPT) is expected to improve treatment results with fewer side effects than other proton therapies. The purpose of this study was to evaluate the tumor sites for which IMPT was effective under the same beam calculation conditions by planning IMPT for typical cases treated with passive scattering proton therapy (PSPT). We selected 16 cases of nasal cavity, lun...
متن کاملSU-E-T-495: Monte Carlo Dose Verification of Passive Scattering Proton Therapy for Prostate Cancer.
PURPOSE To verify the clinical pencil beam dose calculation algorithm for passive scattering proton therapy using field with large range in tissue, i.e. in prostate cancer, using a Monte Carlo (MC) simulation system. METHODS Previously treated prostate cancer cases were randomly selected from our patient database. All patients received the same dose prescription of 50Gy (25 fractions) to plan...
متن کاملSU-E-T-473: Performance Assessment of the TOPAS Tool for Particle Simulation for Proton Therapy Applications.
PURPOSE The TOPAS Tool for Particle Simulation was developed to make Geant4 Monte Carlo simulation more readily available for research and clinical physicists. Before releasing this new tool to the proton therapy community, several test have been performed to ensure accurate simulations in a variety of proton therapy setups. METHODS TOPAS can model a passive scattering or scanning beam treatm...
متن کاملImpact of Various Beam Parameters on Lateral Scattering in Proton and Carbon-ion Therapy
Background: In radiation therapy with ion beams, lateral distributions of absorbed dose in the tissue are important. Heavy ion therapy, such as carbon-ion therapy, is a novel technique of high-precision external radiotherapy which has advantages over proton therapy in terms of dose locality and biological effectiveness.Methods: In this study, we used Monte Carlo method-based Geant4 toolkit to s...
متن کاملUse of diverging apertures to minimize the edge scatter in passive scattering proton therapy
The purpose of this study was to evaluate the use of diverging-cut aperture to minimize collimator contamination in proton therapy. Two sets of apertures with nondivergent and divergent edge were fabricated to produce a 10 cm × 10 cm field at the radiation isocenter of a single-room proton therapy unit. Transverse profiles were acquired in a scanning water tank with both aperture sets. Up to 9....
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ژورنال
عنوان ژورنال: Medical Physics
سال: 2009
ISSN: 0094-2405
DOI: 10.1118/1.3121489