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Welcome to the Twiki web page of the G4MSBG initiative: G4-Med


The aim of the Geant4 Medical Physics Benchmarking Group (G4MSBG) is to develop a fully automatised Geant4 benchmarking and regression testing system for medical physics applications, called G4-Med. 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.

TestSorted descending geant-val layout Authors
Production cross sections of different fragments C12FragCC C. Omachi, T. Toshito, T. Sasaki
Photon attenuation coefficients PhotonAttenuation S. Guatelli, L. Pandola
Microdosimetry Microyz S. Incerti, I. Kyriakou
Low energy electron backscattering ElectronBackScat P. Dondero, A. Mantero,V. Ivanchenko, M. Novak
Light ion (proton, 3He, carbon) range and depth dose curves in water LightIonBraggPeak M. Cortes-Giraldo, A. Perales, J. M. Quesada Molina
Hadronic nucleus-nucleus inelastic cross section NucNucInelXS D. Sakata, S. Guatelli, E. Simpson
Fano cavity Fano cavity P. Arce , M. Maire, M. Novak
Estimation of proton radiobiological damage LowEProtonRBE G. Petringa, GAP Cirrone L. Pandola, G. Cuttone
Electron stopping powers ElectronDEDX V. Ivanchenko
Electron scattering from foils at 13-20 MeV kinetic energies ElecForwScat B. Faddegon, J. Ramos-Méndez
Electron Dose Point Kernel LowEElecDPK S. Incerti, M.-C. Bordage, I. Kyriakou, Y. Perrot
Dosimetry for mammography Mammo C. Fedon, I. Sechopoulos
Dosimetry - clinical 5-6 MeV electron beam To be added L. Desorgher
Bremsstrahlung yield Bremsstrahlung B. Faddegon,J. Ramos-Méndez
Bragg curves in water for 67.5 MeV protons LowEProtonBraggPeak B. Faddegon, J. Ramos-Méndez
Brachytherapy - dose rate Brachy-ir S. Guatelli, D. Cutajar
Absolute neutron yield for protons ProtonC12NeutronYield B. Faddegon, J. Ramos-Méndez
62 MeV /n C-12 fragmentation on Carbon target LowEC12Frag C. Mancini-Terracciano
400 MeV/n C-12 fragmentation C12Frag D. Bolst, S. Guatelli, F. Romano

Development of the benchmarking/regression system


Coordinator: S. Guatelli (University of Wollongong, Wollongong, Australia), e-mail:

Deputy Coordinator: P. Arce (CIEMAT,Madrid, Spain), e-mail:

Mailing list: . alias:

Collaborators list

Collaborators Institute
Pedro Arce CIEMAT, Madrid, Spain
D. Bolst CMRP, University of Wollongong, Wollongong, Australia
M.-C. Bordage CRCT (INSERM and Paul Sabatier University), Toulouse, France
P. Cirrone INFN Catania, Catania, Italy
M. Cortes-Giraldo Universidad de Sevilla, Sevilla, Spain
G. Cuttone INFN Catania, Catania, Italy
D. Cutajar CMRP, University of Wollongong, Wollongong, Australia
L. Desorgher Radiophysics Institute, Lausanne, Switzerland
P. Dondero SWHARD srl, Genova, Italy
A. Dotti former SLAC, Stanford, US
B. Faddegon University of California, San Francisco, US
C. Fedon Radboud University Medical Center, Nijmegen, The Netherlands
S. Guatelli University of Wollongong, Wollongong, Australia
S. Incerti CENBG, Bordeaux, France
V. Ivanchenko Tomsk State University, Tomsk, Russian Federation
D. Konstantinov IHEP, Protvino, Russian Federation
I. Kyriakou Ioannina University, Ioannina, Greece
G. Latyshev IHEP, Protvino, Russian Federation
M. Maire LAPP, IN2P3, Annecy, France
C. Mancini-Terracciano Roma 1, INFN, Italy
A. Mantero SWHARD srl, Genova, Italy
M. Novak CERN, Geneva, Switzerland
C. Omachi Nagoya Proton Therapy Center, Nagoya, Japan
L. Pandola INFN Gran Sasso, Gran Sasso, Italy
A. Perales Medical Physics Department of Clí nica Universidad de Navarra, Spain
Y. Perrot IRSN, France
G. Petringa INFN Catania, Italy
J. M. Quesada Molina Universidad de Sevilla, Sevilla, Spain
J. Ramos-Méndez University of California, San Francisco, US
F. Romano NPL, Teddington, UK
D. Sakata University of Wollongong, Wollongong, Australia
L. Sarmiento Lund University, Lund, Sweden
T. Sasaki KEK, Tsukuba, Japan
I. Sechopoulos Radboud University Medical Center, Nijmegen, The Netherlands
E. Simpson Australian National University, Canberra, Australia
T. Toshito Nagoya Proton Therapy Center, Nagoya, Japan
D. Wright SLAC, Stanford, US


M. A. Cortes-Giraldo et al., "G4_Med, a Geant4 benchmarking tool for medical physics applications"; ENSAR2 workshop: Geant4 in nuclear physics; Madrid (Spain), April 24-26, 2019.

Collaboration web page

-- SusannaGuatelli - 2019-04-18

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