Abstract

In this work we report on recent improvements in the electromagnetic (EM) physics models of Geant4 and new validations of EM physics. Improvements have been made in models of the photoelectric effect, Compton scattering, gamma conversion to electron and muon pairs, fluctuations of energy loss, multiple scattering, synchrotron radiation, and high energy positron annihilation. The results of these developments are included in the new Geant4 version 10.1 and in patches to previous versions 9.6 and 10.0 that are planned to be used for production for run-2 at LHC. The Geant4 validation suite for EM physics has been extended and new validation results are shown in this work. In particular, the effect of gamma-nuclear interactions on EM shower shape at LHC energies is discussed.

Details

Title
Progress in Geant4 Electromagnetic Physics Modelling and Validation
Author
Apostolakis, J 1 ; Asai, M 2 ; Bagulya, A 3 ; Brown, J M C 4 ; Burkhardt, H 1 ; Chikuma, N 5 ; Cortes-Giraldo, M A 6 ; Elles, S 7 ; Grichine, V 3 ; Guatelli, S 8 ; Incerti, S 9 ; Ivanchenko, V N 10 ; Jacquemier, J 7 ; Kadri, O 11 ; Maire, M 12 ; Pandola, L 13 ; Sawkey, D 14 ; Toshito, T 15 ; Urban, L 12 ; Yamashita, T 16 

 CERN, CH1211, Geneva 23, Switzerland 
 SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA 
 Lebedev Physics Institute, 119991, Moscow, Russian Federation 
 Monash University, School of Physics, Melbourne, Australia 
 University of Tokyo, Tokyo, Japan 
 Universidad de Sevilla, Seville, Spain 
 LAPP, 74941, Annecy-le-vieux, France 
 Centre for Medical Radiation Physics, University of Wollongong, NSW, Australia 
 Université of Bordeaux 1, CNRS/IN2P3, CENBG, 33175, Gradignan, France 
10  CERN, CH1211, Geneva 23, Switzerland; Ecoanalytica, 119899, Moscow, Russian Federation; Geant4 Associates International Ltd, United Kingdom 
11  King Saud University, Riyadh, Saudi Arabia 
12  Geant4 Associates International Ltd, United Kingdom 
13  INFN-LNS, I-95123, Catania, Italy 
14  Varian Medical Systems, Palo Alto, CA, 94304, USA 
15  Nagoya Proton Therapy Center, Nagoya, Japan 
16  Hyogo Ion Beam Medical Center, Tatsuno, Japan 
Publication year
2015
Publication date
Dec 2015
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2576452860
Copyright
© 2015. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.