Abstract : An overview of the electromagnetic (EM) physics of the Geant4 toolkit is presented. Two sets of EM models are available: the "Standard" initially focused on high energy physics (HEP) while the "Low-energy" was developed for medical, space and other applications. The "Standard" models provide a faster computation but are less accurate for keV energies, the "Low-energy" models are more CPU time consuming. A common interface to EM physics models has been developed allowing a natural combination of ultra-relativistic, relativistic and low-energy models for the same run providing both precision and CPU performance. Due to this migration additional capabilities become available. The new developments include relativistic models for bremsstrahlung and e+e- pair production, models of multiple and single scattering, hadron/ion ionization, microdosimetry for very low energies and also improvements in existing Geant4 models. In parallel, validation suites and benchmarks have been intensively developed.
http://hal.in2p3.fr/in2p3-00658779
Contributor : Nathalie Martin
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Submitted on : Wednesday, January 11, 2012 - 11:32:41 AM
Last modification on : Wednesday, March 28, 2018 - 1:20:02 PM
V. Ivanchenko, J. Apostolakis, A. Bagulya, H.B. Abdelouahed, R. Black, et al.. Recent Improvements in Geant4 Electromagnetic Physics Models and Interfaces. 3th Monte Carlo Conference MC2010, Oct 2010, Tokyo, Japan. pp.898-903. ⟨in2p3-00658779⟩
