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 < 1 GeV (2)
       - feasibility study to improve low-energy parameterizations 
         for bremsstrahlung [LE] (2)

  7) Improved implementation of photon processes
       - K-shell X-rays in photo-electric model [LE] (1)
       - Feasibility study for Rayleigh scattering in simplified approach (1)
       - Development of Doppler broading parameterisation (2)

  8) Optical photon physics
       - Extension to the unified surface model to have both specular and 
         diffuse components for the transmitted photons (1)
       - Implementation of a more flexible micro facet sampling method for 
         optical surfaces (1)
       - Extend some of the boundary process implementation to X-rays (1)
       - Modeling of optical transport in a volume that has different optical 
         treatments on different sides (2)

  9) Adjoint Monte Carlo [RE]
       - providing support and perform common validation for adjoint models