CERN Accelerating science

EM-2020 Milestones

       ELECTROMAGNETIC WORKING GROUP
                plan of activity for 2020
 =======================================

(1)  - June 2020
(2)  - December 2020
(*)  - will be done if manpower will be identified

---------------------------------------------------------------

  1) Developments for code speed-up:
   - implementation of an alternative, specialized transport for e+- and gamma for HEP applications (1/2)
   - consolidate the "general gamma process" and extend it for e+- (1/2)
   - speed-up of the Urban msc model keeping physics performance (1)
   - review of Geant4 classes related to transport (1)
   - reduce CPU for initialisation in the MT mode (1)

 2) Infrastructure and general support for EM physics:
   - perform regular execution and regression analysis using existing testing suites (1/2)
   - extend geant-val by full set of tests from the EM testing suite (1/2)
   - introduction of detailed test of stepping for EM calorimeters triggered by ATLAS (1)
   - review adjoint models sub-library (1)
   - addition of CMS HGCAL test-beam into testing suite (1)
   - study on effect of high energy muon scattering due to high energy
     radiative processes (1/2) (*)

 3) Further development of the processes of multiple and single scattering:
   - further tuning and optimisation of options for the Goudsmit-Saunderson model for HEP applications (2)
   - new single scattering model for e+- based on ELSEPA (numerical Dirac-Fock PWA) (2)
   - improve back-scattering algorithm for the Urban model (1)
   - evaluate WVI performance with 2-nd order corrections enabled (2) (*)

 4) Further update of ionization models:
   - review model for sampling fluctuations of e+-, evaluate alternative models (1/2)
   - evaluate usage of ICRU90 stopping power data as the default (1/2)
   - evaluate ion ionisation models for moderate and high energies (1)
   - evaluate new ion energy fluctuations model (2)
   - implement Taborda approximation to electron stopping below 30 keV (2)
   - development of ionisation model for gold based on dielectric theory (1/2)

 5) Gamma models:
   - introduce linear gamma polarization options into all gamma models (2)
   - introduce EPICS 2017 cross sections to all gamma models as an alternative option (1/2)
   - review and update all Livermore gamma models (1/2)
   - complete the recalculation of atomic electron momentum PDFs and Compton profiles for all elements (2)
   - introduce quantum entanglement for the gamma transport (1)

 6) Extended model of positron annihilation:
   - addition of more accurate two-gamma annihilation using atomic electron momentum PDFs (1/2)
   - evaluation of the model of the three gamma annihilation (1/2)
   - addition of tau pair production by positrons (2)
   - extend energy limit for positron annihilation to hadrons (2) (*)

 7) Atomic de-excitation module:
   - further development of ANSTO PIXE data library and evaluate Auger emission yields (1/2)
   - implementation of a data base for ionisation cross sections of K-, L-, and M- shells by heavy ion collisions (2)

 8) Medical physics applications and radiobiology:
   - regular running and evaluation of medical physics benchmarks (1/2)
   - complete report on Geant4 medical physics benchmarks (1)
   - simulation studies on RBE, LET, G-values, and DNA damage (1/2)
   - addition of a new example with more realistic human phantoms for radiation
     protection and medical purposes (2)

 9) Optical photon and X-ray physics:
   - extended modelling of scintillation and WLS (1)
   - perform tests of Synchrotron radiation in complex magnets (1/2)
   - support of the transition radiation model for ATLAS and ALICE (2)
   - integration of the Opticks package in the new extended example (2)

 10) DNA physics:
   - implement CPA100 models for DNA related materials (2)
   - increase upper limit for DNA proton physics from 100 to 300 MeV (2)
   - increase upper limit for DNA e- physics Option4 from 10 keV up to 1 MeV (2)

 11) DNA chemistry:
   - improve existing examples and add chem6 (1)
   - implement IRT chemistry transport (1/2)