Plan2010

ELECTROMAGNETIC WORKING GROUP plan of activity for 2010 ======================================================

(1) - June 2010 (2) - December 2010 [LE] - in collaboration with the Low-energy EM working group [HAD]- in collaboration with the Hadronic working group [GEO]- in collaboration with the Geometry and Transport working group [DR] - in framework of Geant4 design review [MAT]- in collaboration with the Generic processes and materials working group

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1) Validation and verification of EM physics:

• improve and extend validation web interface [HAD] (1)
• continue detailed comparison of Standard, Livermore and Penelope models [LE] (2)
• adding tests on high energy multiple and single scattering; (2 CERN summer student)
• adding extra automatic tests on low-energy scattering (2)
• adding ILC (including CALICE) calorimeter tests (2)
• adding test on ion transmission (2)
• adding test on fluctuation of energy loss at moderate energies (2)
• extended capability of testing suite [LE + HAD] (2)
• adding validation of high energy muon transport (2)

2) Material category development:

• adding extra data for ion stopping powers (2)
• introduce variable density approach [DR + MAT] (2)
• review of atomic shell energies [LE] (2)

3) EM infrastructure update:

• general code review [DR + LE + MAT] (1)
• adding interface to differential cross sections [DR + MAT + LE] (1)
• evaluation of G4EmConfigurator approach for Physics Lists [LE] (1)
• improving performance of sub-cut simulation [GEO] (2)
• extended capability of helper classes [LE] (2)
• provide an option allowing to setup EM parameters via cut value (2)
• provide range computations inside G4EmCalculator (2)

4) Further update of ionization processes:

• reimplementation of anti-proton model of ionisation [LE] (1)
• developments for the PAI model (1)
• tuned model of fluctuations for hadrons and ions (2)
• new model of delta-electron production based on ICRU’52 data (2)

5) Further development of the processes of multiple and single scattering:

• further development of WentzelVI model (1)
• further development of Goudsmit-Saunderson model (1)
• establish more stable and effective interface to compute safety and geometry step [GEO] (2)
• establish more effective sampling of displacement in Urban model (2)
• hadron multiple scattering coherent with hadron diffuse model (2)

6) Bremsstrahlung and gamma-conversion models:

• providing example for ultra-relativistic gamma-conversion model (1)
• updated gamma-conversion model at low-energies (2)
• updated bremsstrahlung model for e+- for energies E