Plan2015

ELECTROMAGNETIC WORKING GROUP 
plan of activity for 2015
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(1) - June 2015
(2) - December 2015
(*) - will be done if manpower will be identified
[LE] - in collaboration with the Low-energy EM working group
[GE] - in collaboration with the Geometry working group

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1) Infrastructure and general support for EM physics
- migration remaining EM and medical examples to multi-threading (1/2)
- support for LHC experiments (1/2)
- improve computation of range and energy loss in G4EmCalculator (2)

2) Validation and verification of EM physics
- perform regular execution and regression analysis using existing
testing suites (1/2)
- Extended testing suite validation capabilities (develope new web interface,
improve regression tests, evaluate usage of Jenkins) (1/2)
- continue detailed comparison of Standard, Livermore,
Penelope, and DNA models [LE] (1/2)
- extend backscattering tests in the testing suite (2) [LE]
- migration of testing suite to multi-threading (1/2) (*)
- add CALICE calorimeter tests, focusing on lateral shape (2) (*)
- add Cerenkov calorimeter test (2) (*)
- add bremsstrahlung benchmark (2) (*)
- development of electron line-shape test in sampling calorimeter (2) (*)

3) Further development of the processes of multiple and single scattering:
- review and fix of the displacement beyond boundary algorithm (1) [GE]
- review and fix of the Goudsmit-Saunderson model (1)
- study and improve sampling of lateral displacement and backscattering (1)
- study and single scattering models for high enegry projectiles (2)
- evaluate WentzelVI model performance with 2nd order corrections enabled (2)

4) Further update of ionization processes:
- study of EM physics for proton and light ion therapy versus
new experimental data (1/2)
- refinement of effective ion charge approach (2) (*)
- alternative ion ionisation models for moderate energies (2) (*)

5) Bremsstrahlung and gamma models:
- incorporation of the three gamma annihilation (2)
- improved parameterisation for positron cross section (2) (*)
- update Compton scattering model adding radiative corrections (2) (*)
- feasibility study on improved secondary generation at high energy
for e+e- pair production by e- and e+ (2) (*)

6) Evaluation of PAI and XTR models for ALICE (1/2)

7) High energy processes
- Evaluation or usage of Geant4 rare processes for muon backgrounds
for CLIC and R&D studies for FCC
- extention of grid of internal table for mu-nuclear

8) Optical photon physics
- Extension to the unified surface model to have both specular and
diffuse components for the transmitted photons (2)
- Modeling of optical transport in a volume that has different optical
treatments on different sides (2)