Plan2010

ELECTROMAGNETIC WORKING GROUP 
plan of activity for 2010
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(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