Validation of Geant4 EM using radioactive sorce data is complimentory to other tests and should be continued
Sandia test of energy backscattering should be included into EM testing suite (A.Lechner will have time after summer)
Proposal of introduction of the variable density approach was discussed and it was agreed to submit it to SB and architecture team.
Goudsmit-Saunderson model of multiple scattering provides the best results for fanoCavity, fanoCavity2, electronScattering, Sandia data. Decided to propose this model for Livermore and Penelope Physics Lists.
It was agreed to disable MinEnergyCut call to a model, cut limit should be setup by user (default value 999 eV).
Default value of parameter Skin = 1.
Before the dead-line to 9.4beta (June,4) number of tests should be carried out to optimize EM parameters (Opt2, Opt3, Livermore, Penelope)