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Purpose: To develop a Monte Carlo (MC) therapeutic dose calculation toolkit of a recently released ring gantry linac in Geant4 (Version 10.7) for secondary dose validation of radiotherapy plan. Methods: For the Halcyon (Varian Medical…

Medical Physics · Physics 2022-10-04 Ruirui Liu , Zhen Ji , Xiandong Zhao , Tianyu Zhao , Abhishek Sethi , Daren Sawkey , Bin Cai

The present work is devoted to develop a computational model using the Gate Monte Carlo software for the simulation of a 6MV photon beam given by Elekta Synergy Platform medical linear accelerator treatment head. The model includes the…

Medical Physics · Physics 2013-09-04 Yahya Tayalati , Samir Didi , Mustafa Zerfaoui , Abdellilah Moussaa

Typically used as a tool for Monte Carlo simulation of high energy physics experiments, GEANT4 is increasingly being employed for the simulation of complex radiotherapy treatments. Often the specification of components within a clinical…

Medical Physics · Physics 2011-05-06 Christopher M Poole , Iwan Cornelius , Jamie V Trapp , Christian M Langton

Most virtual source models (VSM) use beam modeling, with the exception of the patient-dependent secondary collimator (jaw). Unlike other components of the treatment head, the jaw absorbs many photons generated by the bremsstrahlung, which…

Geant4 is a Monte Carlo radiation transport toolkit that is becoming a tool of generalized application in areas such as high-energy physics, nuclear physics, astroparticle physics, or medical physics. Geant4 provides an optical physics…

Astrophysics · Physics 2009-06-23 João Costa , Mário Pimenta , Bernardo Tomé

The ELIMED (MEDical and multidisciplinary application at ELI Beamlines) beam line is being developed at INFN-LNS with the aim of transporting and selecting in energy proton and ion beams accelerated by laser-matter interaction at ELI…

CLLBC(Ce) and TLYC(Ce) are novel scintillation materials capable of measuring mixed gamma ray and neutron radiation fields that have gained significant interest in the areas of space and nuclear safety/security science. To date Geant4, the…

Instrumentation and Detectors · Physics 2023-03-20 Jeremy M. C. Brown , Lachlan Chartier , David Boardman , John Barnes , Alison Flynn

Monte Carlo simulation is an essential tool in emission tomography that can assist in the design of new medical imaging devices, the optimization of acquisition protocols, and the development or assessment of image reconstruction algorithms…

Light-ion microbeams provide a unique opportunity to irradiate biological samples at the cellular level and to investigate radiobiological effects at low doses of high LET ionising radiation. Since 1998 a single-ion irradiation facility has…

The simulation of radioactive decays is a common task in Monte-Carlo systems such as Geant4. Usually, a system either uses an approach focusing on the simulations of every individual decay or an approach which simulates a large number of…

Geant4 is a Monte Carlo simulation framework for the description of interactions of particles and matter. Starting with version 8.2 a new package of QED physics processes is available, allowing for the studies of interactions of polarised…

Instrumentation and Detectors · Physics 2009-02-16 Andreas Schälicke , Karim Laihem , Pavel Starovoitov

Purpose: To compare the accuracy with which different hadronic inelastic physics models across ten Geant4 Monte Carlo simulation toolkit versions can predict positron-emitting fragments produced along the beam path during carbon and oxygen…

The use of GEANT4 code has increased in the medical field. There are various studies to calculate the patient dose distributions with the GEANT4 code using the imaging data. In present study, the Monte Carlo simulations based on the DICOM…

Medical Physics · Physics 2015-03-18 JeongOk Lee , JeongKu Kang , JhinKee Kim , HyeongCheol Kwon , JungSoo Kim , BuGil Kim , DongHyeok Jeong

Monte Carlo simulations are increasingly used in scintigraphic imaging to model imaging systems and to develop and assess tomographic reconstruction algorithms and correction methods for improved image quantitation. GATE (GEANT 4…

Instrumentation and Detectors · Physics 2009-11-10 D. Lazaro , I. Buvat , G. Loudos , D. Strul , G. Santin , N. Giokaris , D. Donnarieix , L. Maigne , V. Spanoudaki , S. Styliaris , S. Staelens , V. Breton

We discuss a novel use of the Geant4 simulation toolkit to model molecular transport in a vacuum environment, in the molecular flow regime. The Geant4 toolkit was originally developed by the high energy physics community to simulate the…

Computational Physics · Physics 2013-10-07 J. Singal , J. Langton , R. Schindler

Targeted Radionuclide Therapy (TRT) is a well-established technique for cancer treatment. In this approach, radionuclides are bound to specific drugs that selectively transport them to the tumor site. Within the ISOLPHARM project, a…

A Geant4 based simulation platform of the Holland Proton Therapy Centre (HollandPTC, Netherlands) R&D beamline (G4HPTC-R&D) was developed to enable the planning, optimisation and advanced dosimetry for radiobiological studies. It…

Medical Physics · Physics 2023-06-01 C. F. Groenendijk , M. Rovituso , D. Lathouwers , J. M. C. Brown

A linear Breit-Wheeler module for the code Geant4 has been developed. This allows signal-to-noise ratio calculations of linear Breit-Wheeler detection experiments to be performed within a single framework. The interaction between two photon…

Plasma Physics · Physics 2023-05-31 R. A. Watt , S. J. Rose , B. Kettle , S. P. D. Mangles

A model to describe the output particle distribution generated by particles impinging on a planar target has been developed. This model was developed to simulate positron production in the Cornell CESR Linac but can be applied to targets…

Accelerator Physics · Physics 2022-01-03 John Mastroberti , David Sagan , Jim Shanks

Radioactive decays are of concern in a wide variety of applications using Monte-Carlo simulations. In order to properly estimate the quality of such simulations, knowledge of the accuracy of the decay simulation is required. We present a…

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