Heikkinen, M. A., Boudard, A., Kaitaniemi, P., & Folger, G. (2010). A Geant4 physics list for spallation and related nuclear physics applications based on INCL

A new Geant4 physics list is prepared for nuclear physics applications in the domain dominated by spallation. The C++ translation of original Fortran INCL intra-nuclear cascade and ABLA fission/de-excitation codes are used in the physics list.

or use already available EM physics constructors 1. If you choose to build your own Low Energy EM Physics list ! Refer to the Geant4 Low Energy EM working group website, 2019-04-01 · Geant4 is a Monte Carlo code for the simulation of the passage of particles through matter. It is used in many high-energy physics experiments and in several application fields, such as astrophysics, radiation protection or medical physics.

Geant4 physics list

Specifically developped by the group of F. Salvat … A set of Geant4 Physics Constructors and Lists of interest for medical physics applications are tested. The tests are integrated in the geant-val test system to be executed for benchmarking and regression testing. The test are executed using the CERN computing infrastructure. List of current tests Currently the G4-Med system includes 18 tests. 2013-10-01 Let's get started with some basic concepts and examples to understand how to choose a proper physics list for your Geant4 simulation.

Does someone know what a Geant4 physics-list has to contain to perform a good neutrons' propagation from low to high energies (few keV to about 100 MeV)? Geant4 physics constructors are validated technically and physically by the Geant4 collaboration for each reference Geant4 version ! Different user groups and Geant4 developers may communicate their results obtained in the same conditions Geant4 EM Physics-1, Lund University, Lund, Sweden, 3 - … The physics list contains standard electromagnetic processes and the radioactiveDecay module for GenericIon.

Physics List Guide¶. The Physics List is one of the three mandatory user classes of the Geant4 toolkit. In this class all Geant4 particles [refPart] and their interaction processes [refProc] should be instantiated.

So you can directly use that physics list: QGSP_BIC_HP as long as you use a versio n of Geant4 from 10.6 onwards. Now I can’t remember if this was changed in 10.5 or 10.6.

Physics Lists is the user class making general interface between physics and Geant4 kernel It should include the list of particles The G4ProcessManager of each particle maintains a list of processes There are 3 ordered lists of processes per particle which are active at different stage of Geant4 …

More simple solution is to use one of Reference Physics Lists provided in Geant4 Physics List library. Different approaches and variants of Physics Lists are shown in Geant4 novice, extended and advanced examples. • Geant4 physics list (FTFP_BERT) with step limiter • Started from novice/N02 example Example B3 • Schematic Positron Emitted Tomography system • Geometry with simple placements with rotation (G4PVPlacement) • Radioactive source • Scoring within Crystals via G4 scorers • Modular physics list built via builders provided in Geant4 2 Sep 2014 Does someone know what a Geant4 physics-list has to contain to perform a good neutrons' propagation from low to high energies (few keV to Geant4 Standard EM option 4 and Livermore Physics Lists are in good agreement with EGSnrc in the energy range 20–100 keV. •.

The above G4EmLivermorePhysics, G4EmLivermorePolarizedPhysics and G4EmPenelopePhysics Physics constructors combine Livermore (unpolarized or polarized models) or Penelope models with Standard Electromagnetic Physics models. The combination of Geant4-DNA physics processes (adapted to the very low energy domain) with Geant4 Standard electromagnetic processes (adapted to the high energy domain) is shown in the dnaphysics and microdosimetry extended examples ($located in $G4INSTALL/examples 2020-06-01 · A physics list is a set of physics models together with the model parameters that the Geant4 Collaboration considers optimal for the simulation in a given physics field. Together with this effort, in some physics fields, the Geant4 users have tested different physics options, through comparisons with experimental data and among themselves, with the same aim of finding the optimal physics options.
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other electron processes Physics’I:’Physics’Lists’ Geant4’Tutorial’atStanford’ 4’March’2014’ Dennis’Wright(SLAC)’ Geant4’10.0’p01’ Several Geant4 low-energy studies have utilized the Standard Electromagnetic (EM) Physics List (PL) option 4, as this physics list provides the most detailed implementation of electromagnetic processes for low energy photons and it was suggested by the AAPM TG-195 . Other options in the Standard Electromagnetic Physics List series are meant for fast simulation or high energy applications. yes. However, if I remember correctly, since Geant4 10.6 opt4 is the default EM constructor for QGSP_BIC_HP.

Its areas of application include high energy, nuclear and accelerator physics, as well as studies in medical and space science. The three main reference papers for Geant4 are published in Nuclear Instruments and Methods in Physics Research A 506 (2003) 250-303 , IEEE Transactions on Nuclear Science 53 No. 1 (2006) 270-278 and Nuclear Instruments and Methods in Physics Research A 835 (2016) 186-225 . Overall, we found good agreement between the option 4 of the Standard Electromagnetic physics list and Livermore physics lists of Geant4, as well as EGSnrc for materials relevant to mammography screening.
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14 Apr 2011 aspects of EM physics from 1st Geant4 release up to now. Used for Physics List constructors combining standard and low-energy models

Further investigations are needed for the case of heavier materials. Modular Physics Lists. The default list we provide is a Modular physics list. It is specified by the parameters described here.

av S Abbasinejad Enger · 2008 · Citerat av 3 — List of papers linium: a comparison of GEANT4 and MCNP with measure- Reprints were made with permission from the Medical Physics

Its high energy part is taken from the FTFP_BERT physics list (now recommended by Geant4 for HEP) and radioactive decay has been added to deal with background radiation. All of the Geant4 reference physics lists, including Shielding and FTFP_BERT, are templated code which makes it difficult to know which processes, models and cross sections are in use at a given energy for a given particle. Geant4-DNA physics models can be used in liquid water defined in Geant4 as the NIST material G4_WATER. To do so, one may use the following lines in the DetectorConstruction class : // Water is defined from NIST material database. G4NistManager * man = G4NistManager::Instance (); Why a physics list? • For this reason Geant4 takes an atomistic, rather than an integral approach to physics – provide many physics independent components (processes) – user selects these components in custom physics lists • This physics environment is built by the user in a flexible way: 4.1.

The C++ translation of original Fortran INCL intra-nuclear cascade and ABLA fission/de-excitation codes are used in the physics list. The INCL model prepared is well established for targets heavier than Aluminium and projectile energies from 150 MeV up to 2.5 GeV - 3 GeV. Validity of The aim of this work was to validate the physics models of a Geant4 mammography imaging simulation (in the context of the XPulse project) by comparing to EGSnrc results. Methods: We used three Geant4 electromagnetic physics lists of the version 10.4 of the toolkit: Standard, Livermore and Penelope. We calculated energy distributions in homogeneous and inhomogeneous phantoms and breast doses in DICOM images.