# Category phys-ctor-em History

See `CONTRIBUTING.rst` for details of **required** info/format for each entry,
which **must** added in reverse chronological order (newest at the top).
It must **not** be used as a substitute for writing good git commit messages!

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## 2026-02-24 Vladimir Ivanchenko (phys-ctor-em-V11-03-16)
- G4EmStandardPhysics_option4 - added a possibility to use external dEdx tables
  for ions (problem #2703). It is done by substitution of the
  G4LindhardSorencenIonModel model class by G4IonParameterisedModel.

## 2025-10-29 Vladimir Ivanchenko (phys-ctor-em-V11-03-15)
- G4OpticalPhysics - instantiate a process only if it is activated,
    added option to instantiate a new G4GeneralCerenkov.

## 2025-10-27 Mihaly Novak (phys-ctor-em-V11-03-14)
- G4EmStandardPhysicsGS - update according to the changes in the GS MSC model,
    the standard GS EM constructor is expected to provide accurate e-/e+
    simulations now (similar accuracy as in Livermove, Penelope and option 4)

## 2025-09-10 Vladimir Ivanchenko (phys-ctor-em-V11-03-13)
- G4EmDNABuilder - use upper energy limits from G4EmParameters.

## 2025-07-25 Vladimir Ivanchenko (phys-ctor-em-V11-03-12)
- G4EmDNABuilder - restore usage of Born model of ionisation in the energy
    interval 0.5 - 100 MeV.

## 2025-07-19 Vladimir Ivanchenko (phys-ctor-em-V11-03-11)
- G4EmDNAPhysics_option4, G4EmDNAPhysics_option6, G4EmDNAPhysics_option8
    used fast option - a significant speed-up of physics.

## 2025-07-16 Soon Yung Jun (phys-ctor-em-V11-03-10)
- G4OpticalPhoton - add G4QuasiOpticalPhoton to support offloading of optical
  photon generation

## 2025-07-16 Vladimir Ivanchenko (phys-ctor-em-V11-03-09)
- G4EmDNABuilder - used Rudd extended model for light ions in all physics
    configurations instead of old Rudd model, which should improve CPU
    performance; in opt8 configuration use the same models as in opt2 for
    electrons; increased low-energy limit to 11 eV for the CPA100 elastic
    scattering model

## 2025-06-22 Vladimir Ivanchenko (phys-ctor-em-V11-03-08)
- G4EmDNABuilder - fixed upper energy limit for ionisation of hydrogen.

## 2025-06-20 Vladimir Ivanchenko (phys-ctor-em-V11-03-07)
- G4EmDNABuilder - fixed enegy limits for excitation model for light ions,
  for increase/decrease models. This modification provides a correct
  printout and does not change any DNA physics result.

## 2025-06-13 Vladimir Ivanchenko (phys-ctor-em-V11-03-06)
- G4EmDNABuilder - fixed upper limit of energy increase/decrease processes,
  they should the same as for ionisation and excitation processes

## 2025-06-05 Vladimir Ivanchenko (phys-ctor-em-V11-03-05)
- G4EmDNABuilder - for opt8 configuration use the same configuration of
  models for e- and protons as in opt2.
- in all DNA constructors the upper limit for DNA models for ions is set
  to 300 MeV instead of 400 MeV.

## 2025-05-25 Vladimir Ivanchenko (phys-ctor-em-V11-03-04)
- G4GeneralGammaProcess - updated destructor according to modification in
    electromagnetic/utils

## 2025-05-22 Sebastien Incerti (phys-ctor-em-V11-03-03)
- G4EmDNABuilder - replaced G4DNABornIonisationModel by
  G4DNABornIonisationModel1 for proton ionisation

## 2025-05-21 Vladimir Ivanchenko (phys-ctor-em-V11-03-02)
- G4EmDNAPhysics_option6 - disable "fast" flag in order to have comparisons
    with Opt4 in the same set of general DNA parameters.
- G4EmDNAPhysics_stationary_X constructor - added disclaimer saying that
    these constructors are obsolete.

## 2025-02-12 Vladimir Ivanchenko (phys-ctor-em-V11-03-01)
- G4EmDNABuilder - use new version of Born ionisation model.

## 2025-02-12 Vladimir Ivanchenko (phys-ctor-em-V11-03-00)
- G4EmDNABuilder, G4EmDNAPhysicsActivator - introduce usage of the new ion
  ionisation model in DNA Opt8 physics configuration
- G4EmDNAPhysics, G4EmDNAPhysics_option2, G4EmDNAPhysics_option4,
  G4EmDNAPhysics_option6, G4EmDNAPhysics_option8 - update interface to
  G4EmDNABuilder.

## 2024-10-18 Vladimir Ivanchenko (phys-ctor-em-V11-02-12)
- G4EmStandardPhysics_option3 - return back positron annihilation lost in
    previous MR.

## 2024-10-17 Vladimir Ivanchenko (phys-ctor-em-V11-02-11)
- G4EmStandardPhysics_option3, G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmStandardPhysics, G4EmStandardPhysicsWVI - added a possibility to
  enable/disable 3 gamma annihilation on fly, take into account rename of the
  model G4eplusTo2GammaOKVIModel -> G4eplusTo2or3GammaModel. By default it is
  enabled in G4EmStandardPhysics_option4 only. This option is not added to
  the G4EmPenelopePhysics class, because it has the original Penelope model
  for annihilation.

## 2024-10-02 Hoang Tran (phys-ctor-em-V11-02-10)
- Modified the molecule names of OH, HO2, O in MoleculeDefinition.
  Each molecule configuration has a molecule definition.

## 2024-09-10 Alberto Ribon (phys-ctor-em-V11-02-09)
- G4ChargedUnknownPhysics : replaced G4hIonisation and G4hMultipleScattering
  (which use G4ParticleDefinition) with the corresponding new classes
  G4DynamicParticleIonisation and G4DynamicParticleMSC (which use only
  G4DynamicParticle), respectively.

## 2024-08-01 Alberto Ribon (phys-ctor-em-V11-02-08)
- Created new constructor G4ChargedUnknownPhysics, to be used on top on any
  reference physics list, to assign ionisation and multiple scattering
  (as well as transportation) processes to charged primary particles with
  valid PDG code but not known to Geant4.
  ( This was requested by ATLAS and LHCb. )

## 2024-05-23 Hoang Tran (phys-ctor-em-V11-02-07)
- Use EmParameters to control chemistry models in G4EmDNAChemistry_option3.

## 2024-05-19 Vladimir Ivanchenko (phys-ctor-em-V11-02-06)
- G4EmStandardPhysics_option3, G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmLivermorePhysics, G4EmDNAPhysics - use fAllisonPositronium type of model
  for sampling of positron annihilation at rest (as it is in 11.2).
- G4EmStandardPhysics_option4 - use model alternative model for positron
  annihilation on fly with 3-gamma annihilation channel enabled.

## 2024-05-04 Vladimir Ivanchenko (phys-ctor-em-V11-02-05)
- G4GammaGeneralProcess - updated according to change in EM data tables

## 2024-04-05 Vladimir Ivanchenko (phys-ctor-em-V11-02-04)
- G4EmDNABuilder - added nuclear stopping process for G4GenericIon below 1 MeV/u.
- G4EmDNAPhysics, G4EmDNAPhysicsActivator, G4EmDNAPhysics_option2,
  G4EmDNAPhysics_option4, G4EmDNAPhysics_option6, G4EmDNAPhysics_option8
    change upper limit for DNA physics of Helium ions from 300 MeV to 400 MeV.

## 2024-04-04 Vladimir Ivanchenko (phys-ctor-em-V11-02-03)
- G4EmDNAPhysics - define default maximum kinetic energy 600 MeV
    instead of 300 MeV in order to have standard ionisation and
    multiple scattering always defined for DNA physics configurations.
    This allows avoid situations when low-energy ions path DNA region
    without interaction

## 2024-02-07 Vladimir Ivanchenko (phys-ctor-em-V11-02-02)
- G4EmStandardPhysics_option3 - return back step limit type to
    fUseDistanceToBoundary and the default RangeFactor 0.04 from 0.03,
    which will allow to restore more accurate distributions for several
    tests for medical benchmark

## 2024-02-04 Vladimir Ivanchenko (phys-ctor-em-V11-02-01)
- G4GammaGeneralProcess - fixed sampling of muon pair production - problem 2543

## 2024-01-27 Vladimir Ivanchenko (phys-ctor-em-V11-02-00)
- G4EmStandardPhysicsWVI - return back ATIMA model for ionisation and
    fluctuations of ions in order to make comparisons with other models.

## 2023-11-09 Hoang Tran (phys-ctor-em-V11-01-13)
- Correct subtype process of G4LowECapture in G4EmDNABuilder.

## 2023-11-04 Hoang Tran (phys-ctor-em-V11-01-12)
- Correct G4EmDNABuilder for proton constructors.

## 2023-11-03 Jonas Hahnfeld (phys-ctor-em-V11-01-11)
- `G4EmStandardPhysicsSS`: Remove unused includes.

## 2023-10-23 Jonas Hahnfeld (phys-ctor-em-V11-01-10)
- `G4EmStandardPhysicsSS`: Allow to use `G4TransportationWithMsc`.

## 2023-10-11 Vladimir Ivanchenko (phys-ctor-em-V11-01-09)
- G4EmDNABuilder - for DNA Opt4 and Opt6 restored configuration of Geant4 11.1.2
    for protons in order to have under control results of various tests.

## 2023-07-19 Vladimir Ivanchenko (phys-ctor-em-V11-01-08)
- G4EmDNABuilder - for Opt2, 4, 6 use for protons and ions
    G4DNARuddIonisationExtendedModel from zero to 100 MeV; ion capture
    limit is set to 0.1 keV.

## 2023-04-06 Hoang Tran (phys-ctor-em-V11-01-07)
- Introduced G4ChemDissociationChannels and G4ChemDissociationChannels_option1

## 2023-03-08 Gabriele Cosmo (phys-ctor-em-V11-01-06)
- Fixed compilation warning on macOS/XCode for implicit type conversion
  in G4EmModelActivator::FindOrAddProcess().

## 2023-03-04 Vladimir Ivanchenko (phys-ctor-em-V11-01-05)
- G4EmParticleList - added method EmChargedPartNames(), which returns a minimal
    list of charged EM particles
- G4EmModelActivator - fix #2530 - single scattering per region is implemented
    by addition of extra sngle scattering process, which is active inside this
    region, and not active outside; multiple scattering and single scattering
    processes for a given charged particle are disabled to this region

## 2023-02-27 Vladimir Ivanchenko (phys-ctor-em-V11-01-04)
- G4EmModelActivator - attempt to fix #2530 - single scattering per region

## 2023-02-24 Vladimir Ivanchenko (phys-ctor-em-V11-01-03)
- G4GammaGeneralProcess - added method GetGammaNuclear() useful for testing

## 2023-02-21 Vladimir Ivanchenko (phys-ctor-em-V11-01-02)
- G4EmBuilder, G4EmStandardPhysicsSS - use new constructor for
    the G4CoulombScattering process
- G4EmModelActivator - use new constructor for the G4CoulombScattering process,
    allow add G4EmStandardPhysicsSS on top of G4EmStandardPhysics_option3

## 2023-02-16 Vladimir Ivanchenko (phys-ctor-em-V11-01-01)
- G4EmBuilder, G4EmModelActivator, G4EmStandardPhysicsSS - fix #2530,
    single scattering model definition per region for e+, e-, and light hadrons

## 2022-12-09 Vladimir Ivanchenko (phys-ctor-em-V11-01-00)
- G4GammaGeneralProcess - in all cases select sub-process (fix problem #2521)

## 2022-11-24 Gabriele Cosmo (phys-ctor-em-V11-00-35)
- Fixed compilation warnings for implicit type conversions on macOS/XCode 14.1.

## 2022-11-15 Vladimir Ivanchenko (phys-ctor-em-V11-00-34)
- G4EmBuilder - added G4AntiLambda and G4PionZero to the minimal
    EM particle list to avoid warnings issued due to new hypernuclei

## 2022-11-08 Vladimir Ivanchenko (phys-ctor-em-V11-00-33)
- G4EmBuilder - added G4Lambda to the minimal EM particle list
    needed for hyper-nuclei physics

## 2022-11-04 Vladimir Ivanchenko (phys-ctor-em-V11-00-32)
- G4EmBuilder - added e- and mu- neutrino and anti-neutrino to
    the minimal EM particle list
- G4EmDNABuilder - added minimal list of EM standard particles
    to all DNA physics variants, this allowing enable radioactive
    decay, provides correct printout of EM processes and models,
    and fix problem #2412

## 2022-10-14 Vladimir Ivanchenko (phys-ctor-em-V11-00-31)
- G4EmDNABuilder - enable combination of DNA and standard physics

## 2022-10-08 Vladimir Ivanchenko (phys-ctor-em-V11-00-30)
- Increased upper limit of DNA proton/ion physics from 100 MeV
  to 300 MeV in all DNA constructors
- G4EmDNABuilder - introduced const upper limit 1 MeV for DNA
    models; introduced const upper limit 2 MeV for standard
    low-energy ionisation; use the same upper limit for DNA
    excitation and ionisation

## 2022-09-05 Ben Morgan (phys-ctor-em-V11-00-29)
- Update public/private dependencies for consistency

## 2022-08-30 Vladimir Ivanchenko (phys-ctor-em-V11-00-28)
- Chemistry builders - added used headers

## 2022-08-09 Vladimir Ivanchenko (phys-ctor-em-V11-00-27)
- G4EmBuilder, G4EmDNAPhysics - instantiate singletones for physics

## 2022-07-06 Vladimir Ivanchenko (phys-ctor-em-V11-00-26)
- G4GammaGeneralProcess - fixed problem of Compton scattering selection
    in the low energy interval < 150 keV identified in test67; apply
    spline interpolation for tables at low energy (<150 keV) and at
    high energy (> 100 MeV)

## 2022-06-17 Vladimir Ivanchenko (phys-ctor-em-V11-00-25)
- G4EmStandardPhysics_option4 - use Penelope ionisation model for e-
    below 100 keV

## 2022-06-05 Vladimir Ivanchenko (phys-ctor-em-V11-00-24)
- G4EmBuilder - use check on process sub-type, do not substitute
    G4CoupledTransportation with G4TransportationWithMsc

## 2022-05-27 Vladimir Ivanchenko (phys-ctor-em-V11-00-23)
- G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysics_option4,
    G4EmStandardPhysics_option3, G4EmStandardPhysics - selection of the
    model of energy loss fluctuation is inside processes of ionisation
    according to the type defined in G4EmParameters

## 2022-05-24 Vladimir Ivanchenko (phys-ctor-em-V11-00-22)
- G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysics_option4 -
    provided identical configuration for msc, muon, hadron, and ion
    physics.

## 2022-05-19 Vladimir Ivanchenko (phys-ctor-em-V11-00-21)
- GNUmakefile, source.cmake - updated list of sub-libraries and includes

## 2022-05-16 Vladimir Ivanchenko (phys-ctor-em-V11-00-20)
- G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysicsSS - use
    G4LinhardSorensenIonModel for GenericIon
- G4EmStandardPhysics, G4EmStandardPhysics_option3,
  G4EmStandardPhysics_option4 - use G4GammaGeneralProcess by default

## 2022-05-11 Jonas Hahnfeld (phys-ctor-em-V11-00-19)
- Remove dependency on `G4magneticfield`

## 2022-05-10 Jonas Hahnfeld (phys-ctor-em-V11-00-18)
- `G4GammaGeneralProcess`: Implement new method `GetCreatorProcess()`

## 2022-05-02 Jonas Hahnfeld (phys-ctor-em-V11-00-17)
- `G4EmBuilder`: Enable internal stepping in `G4TransportationWithMsc`
  if requested

## 2022-04-27 Vladimir Ivanchenko (phys-ctor-em-V11-00-16)
- G4EmStandardPhysics_option4 - use G4LinhardSorensenIonModel for GenericIon

## 2022-04-24 Vladimir Ivanchenko (phys-ctor-em-V11-00-15)
- GNUmakefile, source.cmake - updated according to really used sub-libraries

## 2022-04-22 Vladimir Ivanchenko (phys-ctor-em-V11-00-14)
- G4EmDNABuilder, G4EmDNAPhysicsActivator, and DNA constructors - updated
    configuration for Opt2

## 2022-04-19 Jonas Hahnfeld (phys-ctor-em-V11-00-13)
- Honor option to enable `G4TransportationWithMsc`
- Enable by default in `G4EmStandardPhysics_option1`

## 2022-04-05 Vladimir Ivanchenko (phys-ctor-em-V11-00-12)
- G4EmDNABuilder, G4EmDNAPhysicsActivator - fixed Opt4 and Opt5
    configurations according to prescription

## 2022-04-05 Vladimir Ivanchenko (phys-ctor-em-V11-00-11)
- G4EmDNABuilder, G4EmDNAPhysicsActivator - fixed instantiation
    of DNA elastic scattering and ionisation for e-

## 2022-03-28 Vladimir Ivanchenko (phys-ctor-em-V11-00-10)
- G4EmStandardPhysics_option3 - use G4LinhardSorensenIonModel for GenericIon

## 2022-03-24 Vladimir Ivanchenko (phys-ctor-em-V11-00-09)
- G4EmDNABuilder, G4EmDNAPhysicsActivator - make consistent
    configuration of DNA physics on top of standard physics

## 2022-03-15 Hoang Tran (phys-ctor-em-V11-00-08)
- add SBS and IRT_syn models in G4EmDNAChemistry_option3

## 2022-03-10 Vladimir Ivanchenko (phys-ctor-em-V11-00-07)
- G4EmDNABuilder - added extra utility methods to find or to build
    electron processes
- G4EmDNAPhysics_option6, G4EmDNAPhysics_option8 - use "fast" option

## 2022-03-04 Hoang Tran (phys-ctor-em-V11-00-06)
- add G4DNABrownianTransportation in G4EmDNAChemistry_option3

## 2022-02-24 Vladimir Ivanchenko (phys-ctor-em-V11-00-05)
- G4EmDNABuilder - added option2,3,6,8 configurations
- G4EmDNAPhysics_option6, G4EmDNAPhysics_option6,
  G4EmDNAPhysics_option8 - use G4EmDNABuilder
- G4EmDNAPhysics_option7, G4EmDNAPhysics_stationary_option6
  G4EmDNAPhysics_option3, G4EmDNAPhysics_stationary_option2
    maximally simplified
- G4EmDNAPhysicsActivator - fixed for light ions
- G4EmStandardPhysics_option4 - use G4UrbanFluctuation model
    for e+- to address problem #2466

## 2022-02-23 Vladimir Ivanchenko (phys-ctor-em-V11-00-04)
- G4EmDNABuilder - added option4 configuration
- G4EmDNAPhysics - address interface to G4EmDNABuilder
- G4EmDNAPhysics_option4 - use G4EmDNABuilder
- G4EmDNAPhysics_option5, G4EmDNAPhysics_stationary_option4
    maximally simplified

## 2022-02-22 Vladimir Ivanchenko (phys-ctor-em-V11-00-03)
- G4EmDNABuilder - new utility class, which provides instantiation of
    standard and DNA processes/models; this reduces code duplication
    for DNA physics, energy intervals for DNA models are defined
    in one place
- G4EmDNAPhysics is the base class for DNA physics constructors
- G4EmDNAPhysics_option1, G4EmDNAPhysics_stationary - maximally simplified

## 2022-02-10 Vladimir Ivanchenko (phys-ctor-em-V11-00-02)
- G4EmModelActivator - fixed mechanism to define PAI model per region

## 2021-12-11 Vladimir Ivanchenko (phys-ctor-em-V11-00-01)
- G4EmStandardPhysics_option3 - use options providing more accurate
    simulation without loss of CPU performance: RangeFactor=0.03,
    and SafetyPlus step limitation instead of DistanceToBoundary,
    which significantly improving fanoCavity results

## 2021-12-10 Ben Morgan (phys-ctor-em-V11-00-00)
- Change to new Markdown History format

---

# History entries prior to 11.0

12 November 2021, V.Ivanchenko (phys-ctor-em-V10-07-23)
- G4EmStandardPhysicsWVI - making this experimantal configuration
    compatible for CPU performance with Opt3 (it was similar to SS)

10 November 2021, V.Ivanchenko (phys-ctor-em-V10-07-22)
- G4EmStandardPhysicsWVI - use similar options as in Opt3, for ions
    use G4LinhardSorensenIonModel
- G4EmModelActivator - updated according to the current Opt3 and Opt4
    configurations

29 October 2021, M. Novak (phys-ctor-em-V10-07-21)
- G4GammaGeneralProcess - make some methods/fields visible for
    derived classes

25 October 2021, V.Ivanchenko (phys-ctor-em-V10-07-20)
- G4EmBuilder - complete addition of hyper-nuclei EM physics
- in all DNA Physics List use SetAuger() instead of SetAugerCascade()

22 October 2021, V.Ivanchenko (phys-ctor-em-V10-07-19)
- G4EmBuilder - added hyper-nuclei EM physics

12 October 2021, V.Ivanchenko (phys-ctor-em-V10-07-18)
- G4EmBuilder - removed obsolete header

27 September 2021, V.Ivanchenko (phys-ctor-em-V10-07-17)
- G4EmBuilder - use more optimal order of instantiation of processes,
    should not affect any result but useful for debugging

30 August 2021, D.Sawkey (phys-ctor-em-V10-07-16)
- G4OpticalPhysics - apply clang-format style guidelines

11 July 2021, V.Ivanchenko (phys-ctor-em-V10-07-15)
- G4GammaGeneralProcess -  use base material approach

14 June 2021, V.Ivanchenko (phys-ctor-em-V10-07-14)
- G4EmLivermorePhysics, G4EmPenelopePhysics_option1,
  G4EmStandardPhysics_option3, G4EmStandardPhysics_option4,
  G4EmLowEPhysics, G4EmStandardPhysicsSS - instantiate G4ePairProduction
    process after ionisation and bremsstrahlung; this does not change
    physics but helps to have debug printouts to be easier to understand

03 June 2021, V.Ivanchenko (phys-ctor-em-V10-07-13)
- G4EmLivermorePhysics - use G4LivermorePolarizedComptonModel
    if polarisation is enabled
- G4EmLEPTSPhysics - removed obsolete
- G4EmDNAPhysics, G4EmDNAPhysics_stationary - code clean-up

26 May 2021, V.Ivanchenko (phys-ctor-em-V10-07-12)
- G4GammaGeneralProcess - updated interface in the Retrieve(..) method
- G4EmDNAPhysics - updated configuration of standard physics for
    gamma and positrons according to Opt3; updated particle list by
    addition of G4Alpha; simplified ConstructProcess() method using
    G4PhysicsListHelper

22 May 2021, V.Ivanchenko (phys-ctor-em-V10-07-11)
- Updated all standard Physics Lists: removed local member "verbose"
  and use uniform approach for verbosity via G4EmParameters;
  instantiate NIEL process only if parameter MaxNIELEnergy is above
  zero; include gamma linear polarization model to Opt0, Opt3, Opt4,
  SS, and Livermore physics constructors if the parameter
  EnablePolarisation="true"; G4EmLivermorePolarizedPhysics fully
  inherit from G4EmLivermorePhysics

24 April 2021, V.Ivanchenko (phys-ctor-em-V10-07-10)
- G4EmStandardPhysics, G4EmStandardPhysicsGS - set default verbosity 1

16 April 2021 Ben Morgan (phys-ctor-em-V10-07-09)
- Migrate build to modular CMake API

13 April 2021, A.Ribon (phys-ctor-em-V10-07-08)
-  GNUmakefile, sources.cmake : removed dependency on hadronic/model/util
   and hadronic/model/management (that have been now deleted, with their
   classes moved to hadronic/util and hadronic/management).

23 March 2021, J.Brown (phys-ctor-em-V10-07-07)
- Updated G4EmLowEPPhysics physics model configuration
  See https://arxiv.org/abs/2102.02721 for details

18 March 2021, V.Ivanchenko (phys-ctor-em-V10-07-06)
- GeneralGammaProcess - reduced usage of protected variables
- DNA PhysicsLists - used SeEmModel() with correct signature

24 February 2021, D.Sawkey (phys-ctor-em-V10-07-05)
- G4OpticalPhysicsList: remove deprecated optical commands

16 February 2021, W.G.Shin (phys-ctor-em-V10-07-04)
- G4EmDNAChemistry, _option1, _option2, _option3
    added the dissociation channel for electron-hole recombination
- G4EmDNAChemistry_option3 - change the pre-chemical model

12 Febuary 2021, V.Ivanchenko (phys-ctor-em-V10-07-03)
- G4EmBuilder - added geantinos to the minimal list of EM particles

09 Febuary 2021, V.Ivanchenko (phys-ctor-em-V10-07-02)
- G4EmLivermorePolarizedPhysics - removed unused header

24 January 2021, V.Ivanchenko (phys-ctor-em-V10-07-01)
- G4GammaGeneralProcess - reduced more 'if' operators in run time;
    exclude gamma-nuclear from the 2nd energy area, because cross section
    is zero; in the 4th energy interval include in the vector value of
    1 - p instead of p, where p is cumulative probability of a sub-process

18 January 2021, V.Ivanchenko (phys-ctor-em-V10-07-00)
- G4GammaGeneralProcess - changed 1st energy limit from 50 keV to 150 keV
    to guarantee K-shell energy for any element be within 1st energy area;
    changed logic for selection of a concrete process - maximally reduced
    use 'if' operators; reduce number of 'return' in run time methods;
    remove shadowing of base class methods; expected more performant code

04 November 2020, V.Ivanchenko (phys-ctor-em-V10-06-20)
- G4GammaGeneralProcess - improved printouts and make some methods
    protected

04 October 2020, V.Ivanchenko (phys-ctor-em-V10-06-19)
- G4GammaGeneralProcess - resolved problem of assigning of
    a concrete process define step to post step point

19 September 2020, V.Ivanchenko (phys-ctor-em-V10-06-18)
- G4EmStandardPhysics_option4 - use ICRU90 data

05 August 2020, V.Ivanchenko (phys-ctor-em-V10-06-17)
- G4EmBuilder - substitute hardcoded upper limit by the value from the
    G4HadronicParameters class

20 July 2020, D.Sawkey (phys-ctor-em-V10-06-16)
- G4OpticalPhysics, G4OpticalPhysicsMessenger, G4OpticalProcessIndex:
    Move optical physics parameters to new G4OpticalParameters class.
    G4OpticalPhysicsMessenger removed and replaced by G4OpticalParametersMessenger.
    G4OpticalProcessIndex removed, code put in G4OpticalParameters.

11 July 2020, V.Ivanchenko (phys-ctor-em-V10-06-15)
- G4EmModelActivator - updated msc and PAI configurations to address
    concerns reported in problem reports #2052 and #2106

6 July 2020, M.Novak (phys-ctor-em-V10-06-14)
- G4EmStandardPhysicsSS - use the new G4eDPWACoulombScatteringModel for e-/e+
    below 100 [MeV] (for testing this new model)

29 June 2020, V.Ivanchenko (phys-ctor-em-V10-06-13)
- G4EmStandardPhysicsWVI - fixed typo

15 June 2020, V.Ivanchenko (phys-ctor-em-V10-06-12)
- G4EmBuilder - attempt to fix non-reproducibility in the MT mode when
    radioactive decay is enabled

6 June 2020, V.Ivanchenko (phys-ctor-em-V10-06-11)
- G4EmBuilder - fixed non-reproducibility in the MT mode, added
    isWVI flag allowing choose msc model
- G4EmStandardPhysics_option3 - restore the same configuration
    of EM models as in 10.6p02

3 June 2020, V.Ivanchenko (phys-ctor-em-V10-06-10)
- G4EmModelActivator - use the same options for physics per region as
    used in EM constructors 10.6ref05, this is needed to be coherent with
    several modifications in these configurations
- G4EmStandardPhysics, G4EmStandardPhysics_option1, G4EmStandardPhysics_option2,
  G4EmStandardPhysics_option3, G4EmStandardPhysics_option4 G4EmStandardPhysicsSS,
  G4EmStandardPhysicsGS, G4EmStandardPhysicsWVI, G4EmLowEPhysics - use C++11
    keywords

1 June 2020, V.Ivanchenko (phys-ctor-em-V10-06-09)
- G4EmStandardPhysicsGS, G4EmStandardPhysicsWVI, G4EmLowEPhysics,
  G4LivermorePhysics, G4EmPenelopePhysics - remove duplicate code by using
    G4EmBuilder, fix definition of StepFunction, use the same flag as
    hadronic physics to enable EM interaction of b- and c- mesons and baryons
- G4LivermorePolarizedPhysics - use inheritance from G4LivermorePhysics

30 May 2020, V.Ivanchenko (phys-ctor-em-V10-06-08)
- G4EmStandardPhysics, G4EmStandardPhysics_option1, G4EmStandardPhysics_option2,
  G4EmStandardPhysics_option3, G4EmStandardPhysics_option4 G4EmStandardPhysicsSS,
  G4EmBuilder - remove duplicate code by using G4EmBuilder, fix definition
    of StepFunction, use the same flag as hadronic physics to enable EM
    interaction of b- and c- mesons and baryons

27 May 2020, A.Howard (phys-ctor-em-V10-06-07)
- Added second wavelength shifter optical process to constructors in
  G4OpticalPhysics, G4OpticalPhysicsMessenger, G4OpticalProcessIndex

25 May 2020, V.Ivanchenko (phys-ctor-em-V10-06-06)
- G4EmDNAModelActivator - M.J. Pietrzak extended to extra available DNA options
    DNA_Opt2, DNA_Opt4, DNA_Opt4a, DNA_Opt6, DNA_Opt6a, DNA_Opt7
- G4EmBuilder - new utility class which will allow reduce code duplication
    for standard and low-energy EM physics constructors
- G4EmStandardPhysics_option1 - swith to use new G4EmBuilder utility, fixed
    StepFunction definition
- G4EmStandardPhysics_option3 - swith to use new G4EmBuilder utility, use
    ICRU90 stopping power data for water and air

24 May 2020, D.Sawkey (phys-ctor-em-V10-06-05)
- G4OpticalPhysics, G4OpticalPhysicsMessenger - setting for G4Scintillation
  to use 3 time constants

04 April 2020, V.Ivanchenko (phys-ctor-em-V10-06-04)
- G4EmStandardPhysics_option3 - return back UseDistanceToBoundary

23 March 2020, V.Ivanchenko (phys-ctor-em-V10-06-03)
- G4EmStandardPhysics_option3 - switch from UseDistanceToBoundary to
    UseSafetyPlus

23 February 2020, W.G.Shin (phys-ctor-em-V10-06-02)
- fixed comments

10 January 2020, W.G.Shin (phys-ctor-em-V10-06-01)
- added new chemistry constructor option 3 for IRT

21 December 2019, V.Ivanchenko (phys-ctor-em-V10-06-00)
- G4EmModelActivator - fixed configuration of the default EM multiple
  scattering on top of any other physics configuration (problem #2106)

19 October 2019, W.G.Shin, S.Incerti (phys-ctor-em-V10-05-17)
- added new ELSEPA elastic model for Geant4-DNA in G4EmDNAPhysics_option2

13 September 2019, V.Ivanchenko (phys-ctor-em-V10-05-16)
- G4EmLivermorePhysics, G4EmLowEPPhysics, G4EmStandardPhysics_option4
    use SetEmModel(..) instead of AddEmModel(..) for gamma conversion

11 September 2019, D.Sawkey (phys-ctor-em-V10-05-15)
- G4OpticalPhysics - set boundary process to last. Fix bug 2113.

02 September 2019, M.Novak (phys-ctor-em-V10-05-14)
- G4EmLivermorePhysics, G4EmLowEPPhysics, G4EmStandardPhysics_option4 - updated
    settings of the gamma conversion process to provide the original model
    combinations when the low energy G4BetheHeitlerModel model was replaced by
    the G4BetheHeitler5DModel.

14 August 2019, V.Ivanchenko (phys-ctor-em-V10-05-13)
- G4GammaGeneralProcess - fixed "Base Material" use case
- G4EmStandardPhysics_option2, G4EmStandardPhysics_option3 - implement
    "General Process" option for gamma
- G4EmStandardPhysics_option4 - use 5D model for gamma conversion

21 July 2019, M.Novak (phys-ctor-em-V10-05-12)
- G4GammaGeneralProcess - use the new, optimised log-vector access method

20 July 2019, V.Ivanchenko (phys-ctor-em-V10-05-11)
- G4EmStandardPhysicsSS - in the case if Mott correction flag is TRUE
    apply G4eSingleCoulombScatteringModel both for e+ and e-

21 May 2019, V.Ivanchenko (phys-ctor-em-V10-05-10)
- G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysics_option4,
  G4EmStandardPhysics_option3 - define upper energy limit for nuclear
    stopping via EM parameters
  all DNA constructors - added ActivateDNA() flag to EM parameters

09 April 2019, H.Tran (phys-ctor-em-V10-05-09)
- added G4EmDNAChemistry_option2

05 April 2019, S.Incerti (phys-ctor-em-V10-05-08)
- added sub-excitation processes in G4EmDNAPhysics_option8

20 March 2019, D.Sawkey (phys-ctor-em-V10-05-07)
- G4OpticalPhysics, G4OpticalPhysicsMessenger - put all UI commands
  into messenger class; fix bug 2085; deprecate commands with
  /default/ in command string

10 March 2019, M. Karamitros (phys-ctor-em-V10-05-06)
- G4EmDNAChemistry constructors: follow emdna changes

07 March 2019, V.Ivanchenko (phys-ctor-em-V10-05-05)
- G4EmLivermorePhysics, G4EmPenelopePhysics - make msc configuration
    as in Opt4 : RangeFactor=0.08, Skin=3, UserSafetyPlus
- G4EmModelActivator - fixed problem 2106

08 February 2019, W. G. Shin, S. Incerti (phys-ctor-em-V10-05-04)
- added handling of UI thermalization model control in
G4EmDNAPhysics_option1,3,5,7,8

06 February 2019, W. G. Shin, S. Incerti (phys-ctor-em-V10-05-03)
- added handling of UI thermalization model control in
G4EmDNAPhysics_option2,4,6

18 January 2019, V.Ivanchenko (phys-ctor-em-V10-05-02)
- G4EmStandardPhysicsWVI - use G4eplusTo2GammaOKVIModel with 3-gamma
    annihilation for e+

14 January 2019, V.Ivanchenko (phys-ctor-em-V10-05-01)
- G4EmStandardPhysics_option4 - change RangeFactor to 0.08 in
    order to have expected results from fanoCavity test (M.Novak)

19 December 2018, V.Ivanchenko (phys-ctor-em-V10-05-00)
- G4EmModelActivator - fixed clang7 compilation warning

27 November 2018, V.Ivanchenko (phys-ctor-em-V10-04-21)
- G4EmStandardPhysics_option2 - use the same models and parameters as
    in LHCb EM physics constructor

26 November 2018, V.Ivanchenko (phys-ctor-em-V10-04-20)
- G4EmDNAChemistry, G4EmDNAChemistry_option1 - fixed typo in headers

15 November 2018, V.Ivanchenko (phys-ctor-em-V10-04-19)
- G4EmStandardPhysics_option3 - use Alg96 lateral displacement sampling
  (address issue reported in HyperNews/geant4/get/emprocess/1516.html)

9 November 2018, V.Ivanchenko (phys-ctor-em-V10-04-18)
- G4EmLivermorePhysics - return back 5D gamma conversion model

8 November 2018, S. Incerti (phys-ctor-em-V10-04-17)
- G4EmDNAPhysics_option7: fix for electron models combination

2 November 2018, V.Ivanchenko (phys-ctor-em-V10-04-16)
- G4EmStandardPhysics_option4, G4EmStandardPhysics_option3 - cleaned up
    definition of nuclear stopping process
- G4EmStandardPhysicsWVI - use Opt3 parameters, use new ATENA ion
    stopping model
- G4EmLowEPPhysics - use Opt3 parameters, use Lindhard-Sorensen ion
    stopping model, use ICRU90 stopping for protons and alpha

27 October 2018, V.Ivanchenko (phys-ctor-em-V10-04-15)
- G4EmLivermorePhysics - fixed nightly problem

26 October 2018, D.Sawkey (phys-ctor-em-V10-04-14)
- G4OpticalPhysicsMessenger, G4OpticalPhysics: fix documentation (bug #2020)

26 October 2018, V.Ivanchenko (phys-ctor-em-V10-04-13)
- G4EmStandardPhysics_option1 - disabled general gamma process
- G4EmLivermorePhysics, G4EmPenelopePhysics - set stepping function
    parameters for muons and hadrons to (0.2,50*um)
- G4EmStandardPhysics_option3 - set stepping function parameters for muons
    and hadrons to (0.2,50*um), enable Mott corrections, use the most recent
    version of lateral displacement for the Urban model
- G4EmStandardPhysics_option4 - set stepping function parameters for muons
    and hadrons to (0.1,20*um)

01 October 2018, V.Ivanchenko (phys-ctor-em-V10-04-12)
- G4EmParticles - extended list of particle (Bc+-, OmegaB, XiB,
    SigmaB)

26 September 2018, V.Ivanchenko (phys-ctor-em-V10-04-11)
- G4GammaGeneralProcess - a new class
- G4EmStandardPhysics, G4EmStandardPhysics_option1,
  G4EmStandardPhysics_option4 - renamed gamma general process class

20-September-2018 J. Ramos-Mendez (phys-ctor-em-V10-04-10)
- Addition of G4EmDNAPhysics_option8, G4EmDNAChemistry_option1

20-September-2018 V.Ivanchenko (phys-ctor-em-V10-04-09)
- G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmPenelopePhysics, G4EmPolarizedLivermorePhysics - use the same
  GS msc model configuration and the same configurations for hadrons
  and ions
- G4EmLowEPPhysics - use the same configurations for hadrons

22-August-2018 V.Ivanchenko (phys-ctor-em-V10-04-08)
- G4GammaSuperProcess fixed for gamma-nuclear process

18-August-2018 V.Ivanchenko (phys-ctor-em-V10-04-07)
- G4GammaSuperProcess, G4EmStandardPhysics,
- G4EmStandardPhysics_option1, G4EmStandardPhysics_option4
    updated usage of gamma super process

30-July-2018 V.Ivanchenko (phys-ctor-em-V10-04-06)
28-July-2018 V.Ivanchenko (phys-ctor-em-V10-04-04)
- G4GammaSuperProcess - new class
- G4EmStandardPhysics_option1 - enable gamma super process
- G4EmStandardPhysics - added possibility to use gamma super process
- G4EmLowEPPhysics - added bremsstrahlung and pair production for ions

17-May-2018 V.Ivanchenko (phys-ctor-em-V10-04-03)
- G4EmModelActivator - fixed GS and Opt3 configurations

27-April-2018 V.Ivanchenko (phys-ctor-em-V10-04-02)
- in several constructors return back the order of photo-effect
  and Compton in order to keep log file stable

27-April-2018 V.Ivanchenko (phys-ctor-em-V10-04-01)
- G4EmStandardPhysics_option1, G4EmStandardPhysics_option2 - use
    Livermore photo-effect model
- G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmPenelopePhysics - upper energy limit 100 TeV
- G4EmLowEPPhysics - use new 5D gamma conversion model below 80 GeV,
    use new Lindhard-Sorensen ion ionisation model above 20 MeV/u
- G4EmModelActivator - modified accordingly

28-March-2018 V.Ivanchenko (phys-ctor-em-V10-04-00)
- G4EmStandardPhysics, G4EmStandardPhysics_option1,
  G4EmStandardPhysics_option2, G4EmStandardPhysics_option4,
  G4EmLowEPPhysics, G4EmPenelopePhysics, G4EmLivermorePhysics,
  G4EmLivermorePolarizedPhysics, G4EmStandardPhysicsGS - use new
    parameter MscEnergyLimit() (default is 100 MeV) allowing
    customise transition from low-energy multiple scattering to
    high energy combination of multiple and single scattering
- G4EmModelActivator - fixed Opt4 and single scattering (problem #2045)

07-November-2017 V.Ivanchenko (phys-ctor-em-V10-03-37)
- G4EmStandardPhysics_option4 - enable Auger cascade

03-November-2017 V.Ivanchenko (phys-ctor-em-V10-03-36)
- G4EmStandardPhysics, G4EmStandardPhysics_option1,
  G4EmStandardPhysics_option2 - use defalt (one of 9.6) Urban msc
    lateral displacemet algorithm for e+-
- G4EmStandardPhysics_option3, G4EmLowEPPhysics, G4EmPenelopePhysics,
  G4EmLivermorePhysics, G4EmLivermorePolarizedPhysics - use new
    Urban lateral displacement algorithm

30-October-2017 M.Novak (phys-ctor-em-V10-03-35)
- G4EmStandardPhysicsGS, G4EmStandardPhysics_option4
    - default HEP settings of the GS physics constructor
    - follow-up modification in opt4 according to recent (emstand-V10-03-45)
      changes in the GS msc model

28-October-2017 V.Ivanchenko (phys-ctor-em-V10-03-34)
- G4EmDNAModelActivator - fixed for hydrogen

25-October-2017 V.Ivanchenko (phys-ctor-em-V10-03-33)
- G4EmDNAModelActivator - fixed for generic ions
- G4EmStandardPhysics_option4 - use different G4NuclearStopping
    instance for G4GenericIon and other baryons

12-October-2017 V.Ivanchenko (phys-ctor-em-V10-03-32)
- G4EmDNAModelActivator - fixed for helium ions

11-October-2017 V.Ivanchenko (phys-ctor-em-V10-03-31)
- G4EmDNAModelActivator - fixed configuration of helium and Generic ions
- G4EmStandardPhysics, G4EmStandardPhysics_option1,
  G4EmStandardPhysics_option2 - use new parameter SetLateralDisplacementAlg96

22-September-2017 M.Novak (phys-ctor-em-V10-03-30)
- G4EmStandardPhysics_option4 - change msc model for e-/e+ below
    100 MeV from Urban + UseDistanceToBoundary stepping to
    GS + Mott-correction + error-free stepping.

16-September-2017 V.Ivanchenko (phys-ctor-em-V10-03-29)
- G4EmStandard_option3 - use default Urban model of fluctuations

24-August-2017 M.Novak (phys-ctor-em-V10-03-27)
- G4EmStandardPhysicsGS - use the most accurate settings for the GS
    MSC model (error-free stepping and Mott-correction) for testing.

24-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-26)
- G4EmModelActivator - allow to use both "PAIphoton" and "pai_photon"
    names when activating PAIphoton model
- G4EmLivermorePolarizedPhysics - use upper limit 100 TeV, do not apply
    high energy limit 1 GeV to gamma processes
- G4EmLivermorePhysics, G4EmPenelopePhysics - cleanup

10-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-25)
05-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-23)
-  all DNA physics constructors use gamma configuration as in
   Livermore, fixed usage of SetEmModel() and AddEmModel()

04-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-22)
04-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-21)
-  all EM physics constructors now does not share multiple and single
   scattering processes between proton and anti_proton

03-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-20)
03-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-17)
- all EM physics constructors now use G4EmParticleList
- G4EmDNAPhysicsActivator - coherently initialise models

02-August-2017 V.Ivanchenko (phys-ctor-em-V10-03-16)
29-July-2017 V.Ivanchenko (phys-ctor-em-V10-03-13)
- G4EmDNAPhysicsActivator - apply solatation model below 7.4 eV
    (was 4 eV) in order to absorb low-energy e-; general cleanup

06-June-2017 V.Ivanchenko (phys-ctor-em-V10-03-12)
- G4EmStandardPhysics_option3 - use G4UniversalFluctuation2017
    for energy loss fluctuation of e+-, protons, anti_protons

01-June-2017 V.Ivanchenko (phys-ctor-em-V10-03-11)
- G4EmStandardPhysicsSS - use G4hCoulombScatteringModel to take into
    account relativistic corrections

01-June-2017 V.Ivanchenko (phys-ctor-em-V10-03-10)
- G4EmStandardPhysicsWVI - use G4WentzelVIRelModel and
    G4hCoulombScatteringModel to take into account relativistic
    corrections

08-May-2017 V.Ivanchenko (phys-ctor-em-V10-03-09)
- G4EmStandardPhysics - use RayleighScattering and LivermorePhotoElectricModel

04-May-2017 V.Ivanchenko (phys-ctor-em-V10-03-08)
- G4EmStandardPhysics_option4 - set finalStep for all changed
    10 um (except GenericIon), this will somehow slow down the
    simulation but increase accuracy of range simulation
- G4EmParticleList - new class with the list of particles,
    for whichg EM processes are instantiated
- G4EmModelActivator - fixed Opt4 and SS per region

29-April-2017 S.Incerti (phys-ctor-em-V10-03-07)
- added stationary Geant4-DNA constructors

25-April-2017 V.Ivanchenko (phys-ctor-em-V10-03-06)
- G4EmStandardPhysicsWVI - revert back
- G4EmStandardPhysicsSS - apply single scattering to all particles
    (bug fix #1966)

27-March-2017 V.Ivanchenko (phys-ctor-em-V10-03-05)
- G4EmStandardPhysicsWVI - use G4WentzelVIRelModel and
    G4hCoulombScatteringModel to take into account relativistic
    corrections

19-January-2017 P. Gumplinger (phys-ctor-em-V10-03-04)
- add setCerenkov/ScintillationStackPhotons commands to
  G4OpticalPhysicsMessenger and use them in G4OpticalPhysics

02-January-2017 S. Incerti (phys-ctor-em-V10-03-03)
- added elastic scattering process for ions to all DNA constructors

27-December-2016 S. Incerti (phys-ctor-em-V10-03-02)
- fixed compilation error

27-December-2016 S. Incerti (phys-ctor-em-V10-03-01)
- added G4EmDNAPhysics_option6

16-December-2016 V.Ivanchenko (phys-ctor-em-V10-03-00)
- G4EmModelActivator - use new access methods RegionsPhysics() and
    TypesPhysics() instead of RegionsMsc() and TypesMsc()

02-December-2016 V.Ivanchenko (phys-ctor-em-V10-02-38)
- G4EmModelActivator - added initialisation of atomic deexcitation
    for radioactive decay (also for the cases when radioactive
    decay is registered before EM physics or is the only process)

15-November-2016 V.Ivanchenko (phys-ctor-em-V10-02-37)
- G4EmModelActivator - fixed PAI model activation (disable for ions)

03-November-2016 V.Ivanchenko (phys-ctor-em-V10-02-36)
- G4EmModelActivator - added SS PhysList per region

20-October-2016 M.Maire   (phys-ctor-em-V10-02-35)
- README : start to fill

17-October-2016 M.Maire   (phys-ctor-em-V10-02-34)
- add README

11-October-2016 G.Folger  (phys-ctor-em-V10-02-33)
- replace direct use of aParticleIterator by GetParticleIterator().

11-October-2016 S.Incerti (phys-ctor-em-V10-02-32)
- G4EmDNAPhysics* - retry of activation of atomic deex. conf.

05-October-2016 V.Ivanchenko (phys-ctor-em-V10-02-31)
- G4EmStandardPhysics_option4 - disable lateral displacement
    beyond safety

05-October-2016 S.Incerti (phys-ctor-em-V10-02-30)
- G4EmDNAPhysics* - reconfigured activation of atomic deexcitation

03-October-2016 S.Incerti (phys-ctor-em-V10-02-29)
- G4EmDNAPhysics - added G4EmParameters::Instance()->SetDefaults();

23-September-2016 V.Ivanchenko (phys-ctor-em-V10-02-28)
- G4EmStandardPhysicsWVI - disable lateral displacement beyond safety

26-August-2016 V.Ivanchenko (phys-ctor-em-V10-02-27)
25-August-2016 V.Ivanchenko (phys-ctor-em-V10-02-26)
- G4EmModelActivator - added configuration of EM physics per G4Region
    via UI commands
- G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysicsGS,
  G4EmLivermorePolarizedPhysics, G4EmStandardPhysicsWVI - use the same
    style names for EM physics constructors

10-August-2016 V.Ivanchenko (phys-ctor-em-V10-02-25)
- G4EmModelActivator - simplified interface, removed not needed methods

03-August-2016 V.Ivanchenko (phys-ctor-em-V10-02-24)
- Opt3, Livermore and Penelope enable sampling of lateral displacement
  for hadrons

28-July-2016 V.Ivanchenko (phys-ctor-em-V10-02-23)
- G4EmDNAPhysicsActivator - introduced new methods for DNA configuration
    per particle type

25-July-2016 V.Ivanchenko (phys-ctor-em-V10-02-22)
- In all EM builders only one explicit constructor is left
- Livermore and Penelope physics defined below 1 TeV (default 100 TeV)

22-July-2016 V.Ivanchenko (phys-ctor-em-V10-02-21)
- G4EmDNAPhysicsActivator - new class for DNA models configuration
- G4EmModelActivator - take out DNA physics and move it to the new
    class G4EmDNAPhysicsActivator

06-June-2016 M. Karamitros (phys-ctor-em-V10-02-20)
- G4EmModelActivator: Correct elastic process name for ions

03-June-2016 M. Karamitros (phys-ctor-em-V10-02-19)
- G4EmModelActivator: Use Uehara model with chemistry
- G4EmDNAPhysics: load G4EmParameters

02-June-2016 V.Ivanchenko (phys-ctor-em-V10-02-18)
- G4EmModelActivator - fixed activation of DNA models

28-May-2016 M. Karamitros (phys-ctor-em-V10-02-17)
- G4EmDNAPhysics_option7: correct preproc flag

24-May-2016 M. Novak (phys-ctor-em-V10-02-16)
- G4EmStandardPhysicsGS: change back default step limit type to opt0 like
  and set default range factor to 0.1

17-May-2016 M. Karamitros (phys-ctor-em-V10-02-15)
- DNA and ModelActivator constructors:
* correct model/process names
* adjust high energy threshold of solvation (kill) in respect to the energy range 
of the elastic model

12-May-2016 M. Karamitros (phys-ctor-em-V10-02-14)
- Add G4DNAElectronSolvation to all DNA constructors
- Update G4EmModelActivator

27-Apr-2016 M.Novak (phys-ctor-em-V10-02-13)
- G4EmStandardPhysicsGS: changed default step limit type to error-free

23-Apr-2016 M. Karamitros (phys-ctor-em-V10-02-12)
- G4EmDNAChemistry: G4DNAElectronSolvatation->G4DNAElectronSolvation

20-Apr-2016 S. Incerti (phys-ctor-em-V10-02-11)
- updated G4EmDNAPhysics_option5

30-Mar-2016 V.Ivanchenko (phys-ctor-em-V10-02-10)
- G4EmStandardPhysics_option3 - fixed typo: uncomment commented line

29-Mar-2016 V.Ivanchenko (phys-ctor-em-V10-02-09)
- G4EmStandardPhysics_option3, option4 - added process of e+e-
    pair creation by e+ and e-; enable lateral displacement for
    muons and hadrons

21-Mar-2016 S. Incerti (phys_ctor-em-V10-02-08)
- added updated G4EmDNAPhysics_option7

07-Mar-2016 P. Gumplinger (phys_ctor-em-V10-02-07)
- add flag and command whether or not to call InvokeSD method
  of G4OpBoundaryProcess

07-Mar-2016 M. Karamitros (phys_ctor-em-V10-02-06)
- remove G4EmDNAPhysics_option7 from sources.cmake

07-Mar-2016 M. Karamitros (phys_ctor-em-V10-02-05)
- remove G4EmDNAPhysics_option7

03-Mar-2016 I.Hrivnacova (phys_ctor-em-V10-02-04)
- fixed G4Exception message in G4OpticalPhysicsMessenger

01-Mar-2016 P.Gumplinger (phys_ctor-em-V10-02-03)
- fix Coverity error of uninitialized fScintillationTrackInfo

26-Feb-2016 P.Gumplinger (phys-ctor-em-V10-02-02)
- addressing part of bug report 1832 as suggested by Ivana Hrivnacova

05-Feb-2016 P.Gumplinger (phys-ctor-em-V10-02-01)
- fix val-grind memory leakage check tool flag in G4OpticalPhysicsMessenger

02-Feb-2016 P.Gumplinger (phys-ctor-em-V10-02-00)
- add SetScintillationTrackInfo to G4OpticalPhysics with
  associated command in G4OpticalPhysicsMessenger

09-Nov-2015 V.Ivanchenko (phys-ctor-em-V10-01-22)
- G4EmStandardPhysicsSS - allowing optional model with Mott
    correction for e-

28-Oct-2015 V.Ivanchenko (phys-ctor-em-V10-01-21)
- G4EmStandardPhysicsGS - M. Novak tunned parameters and make
    it compatible with standard Opt0

16-Sept-2015 V.Ivanchenko (phys-ctor-em-V10-01-20)
- define fluo flag in constructors of all EM constructors
- G4EmStandardPhysics_option3, G4EmStandardPhysicsWVI,
  G4EmStandardPhysicsSS, G4EmStandardPhysicsGS
    - use G4LivermorePhotoElectricModel and G4KleinNishinaModel
- G4EmStandardPhysics, G4EmStandardPhysics_option1,2 - set
    new Urban msc lateral displacement off

02-Sept-2015 V.Ivanchenko (phys-ctor-em-V10-01-19)
- G4EmStandardPhysics_option4 - use WVI+SS for pions, kaons, p, pbar
- G4EmStandardPhysicsGS - use PWA screening option for e+,
    RangeFactor=0.15, UseSafetyPlus step limit
- G4EmStandardPhysicsWVI - RangeFactor=0.15

14-Aug-2015, S.Incerti (phys-ctor-em-V10-01-18)
- added G4DNARuddIonisationExtendedModel to G4EmDNAPhysics_option5

14-Aug-2015, S.Incerti (phys-ctor-em-V10-01-17)
- corrected proton energy limits in G4EmDNAPhysics_option2

27-July-2015 V.Ivanchenko (phys-ctor-em-V10-01-16)
- G4EmLivermorePhysics, G4EmLowEPPhysics, G4EmPenelopePhysics,
  G4EmStandardPhysics_option3,4 - set lowest e+- energy to 100 eV
  G4EmStandardPhysicsWVI,  G4EmStandardPhysicsSS,
  G4EmStandardPhysicsGS - set lowest e+- energy to 10 eV

20-July-2015 D.Sawkey (phys-ctor-em-V10-01-15)
- G4EmLivermorePhysics, G4EmLowEPPhysics, G4EmPenelopePhysics,
  G4EmStandardPhysics_option[1,2,3,4], G4EmStandardPhysicsWVI,
  G4EmStandardPhysicsSS, G4EmStandardPhysics,
  G4EmLivermorePolarizedPhysics, G4EmDNAPhysics_option[1,2,3,4,5]
  - call G4EmParameters::Instance()->SetDefaults() in ctor for
  each electromagnetic physics list

10-July-2015, M. Karamitros (phys-ctor-em-V10-01-14)
- G4EmDNAChemistry : adapt for new elastic model
- G4DNAPhysics_option5 : add Born models for energy regions
where Emfietzoglou models do not apply

08-July-2015, M. Karamitros (phys-ctor-em-V10-01-13)
- G4EmDNAChemistry : use G4MolecularConfiguration instead of
G4Molecule
- G4EmModelActivator : Add Ion elastic model + cosmetics

25-June-2015, S.Incerti (phys-ctor-em-V10-01-12)
- updated G4EmDNAPhysics_option1 for GenericIon usage

17-June-2015, S.Incerti (phys-ctor-em-V10-01-11)
- added G4EmDNAPhysics_option5

10-June-2015, V.Ivanchenko (phys-ctor-em-V10-01-10)
- G4EmModelActivator - fixed Coverity report
- G4EmStandardPhysicsGS, G4EmStandardPhysicsSS,
  G4EmStandardPhysicsWVI - enable Rayleigh scattering and fluorescence

05-June-2015, V.Ivanchenko (phys-ctor-em-V10-01-09)
- added G4EmStandardPhysicsGS - use Goudsmity-Saunderson msc model
    for e+e- below 100 MeV

03-June-2015, V.Ivanchenko (phys-ctor-em-V10-01-08)
- G4EmStandardPhysics_option4 configure Penelope ionisation for
    e+- below 1 MeV

03-June-2015, V.Ivanchenko (phys-ctor-em-V10-01-07)
- G4EmModelActivator - new helper class to activate PAI, MicroElec
    and DAN models per G4Region
- G4EmLivermorePhysics, G4EmLowEPPhysics, G4EmPenelopePhysics,
  G4EmStandardPhysics_option1, G4EmStandardPhysics_option2,
  G4EmStandardPhysics_option3, G4EmStandardPhysics_option4
  G4EmStandardPhysicsWVI, G4EmStandardPhysicsSS,
  G4EmLivermorePolarizedPhysics - use G4EmModelActivator
- G4EmStandardPhysicsSS - full activation of the de-excitation module

24-May-2015, S.Incerti (phys-ctor-em-V10-01-06)
- added G4EmDNAPhysics_option4

04-Mar-2015, V.Ivanchenko (phys-ctor-em-V10-01-05)
- G4EmLivermorePhysics, G4EmLowEPPhysics, G4EmPenelopePhysics,
  G4EmStandardPhysics_option1, G4EmStandardPhysics_option2,
  G4EmStandardPhysics_option3, G4EmStandardPhysics_option4
    parameters for multiple scattering are defined via
    G4EmParameters class

16-Feb-2015, V.Ivanchenko (phys-ctor-em-V10-01-04)
- G4EmStandardPhysicsWVI - disable DisplacementBeyondSafety for
    the same reason as in previous tag

13-Jan-2015, V.Ivanchenko (phys-ctor-em-V10-01-03)
- G4EmStandardPhysics_option4 - disable DisplacementBeyondSafety
    option (result of electron scattering benchmark demonstrate
    some degradation of accuracy with this option enabled)

17-Dec-2014, V.Ivanchenko (phys-ctor-em-V10-01-02)
- G4EmStandardPhysicsWVI - added angular limit to WentzelVI model
    in order to provide correct backscattering (fixing problem #1702)

14-Dec-2014, S. Incerti (phys-ctor-em-V10-01-01)
- G4EmDNAPhysics_option3: created

13-Dec-2014, S. Incerti (phys-ctor-em-V10-01-00)
- G4EmDNAPhysics_option2: created

28-Nov-2014, M. Karamitros (phys-ctor-em-V10-00-27)
- G4EmDNAChemistry: remove useless activation line

24-Nov-2014, M. Karamitros (phys-ctor-em-V10-00-26)
- G4EmDNAChemistry: initialization procedure of the chemistry reviewed
G4DNAChemistryManager::Instance()->Initialize() is called from
G4EmDNAChemistry::ConstructProcess.
- Elastic scattering models are extended to low energies to avoid killing the
electrons --> should be converted into a solvated electron

21-Nov-2014, M. Karamitros (phys-ctor-em-V10-00-25)
- Transfer initialization of chemistry from user code to geant4 code

17-Nov-2014, I. Hrivnacova (phys-ctor-em-V10-00-24)
- Improved printing in G4OpticalPhysics::PrintStatistics()

12-Nov-2014, A. Dotti (phys-ctor-em-V10-00-23)
- Use of the correct enumerator.

08-Nov-2014, M. Karamitros (phys-ctor-em-V10-00-22)
- Use G4MoleculeTable::GetModel rather than recreating molecules

7-Nov-2014, V.Ivanchenko (phys-ctor-em-V10-00-21)
- Use G4EmParameters used in low-energy constructors

4-Nov-2014, A.Dotti (phys-ctor-em-V10-00-20)
- Fix bug appearing in LXe boundscheck test. Actually it is a
  serious bug that can also make program crash.

28-Oct-2014, A. Dotti (phys-ctor-em-V10-00-19)
- Add trailing '/' at end of new UI optical directories

28-Oct-2014, P. Arce (phys-ctor-em-V10-00-18)
- Add G4EmLEPTSPhysics

27 Oct 14: A.Dotti ( phys-ctor-em-V10-00-17)
- Address problem #1675, this requires re engineering of
  all UI commands related to optical processes and created
  in G4OpticalPhysics.
- Co-working tags: xrays-V10-00-06, op-V10-00-09, phys-ctor-em-V10-00-17

23-Oct-2014, M. Karamitros (phys-ctor-em-V10-00-16)
- G4EmDNAChemistry: correct H3O+ settings

17-Oct-2014, M. Karamitros (phys-ctor-em-V10-00-15)
- G4EmDNAChemistry: avoid reseting vibrational model

17-Oct-2014, V.Ivanchenko (phys-ctor-em-V10-00-14)
- Use G4EmParameters used in all standard constructors
  G4EmStandardPhysics_option3,4 - use G4GeneratorBS angular generator
    for bremsstrahlung
  G4EmStandardPhysics_option4 - use RangeFactor = 0.02 (instead of 0.01);
    use G4DeltaAngle angular generator for all ionisation models
  G4EmStandardPhysicsSS, G4EmStandardPhysicsWVI - new constructors

07-Jul-2014, M. Karamitros (phys-ctor-em-V10-00-13)
- Add G4EmDNAChemistry

05-Jun-2014, S. Incerti (phys-ctor-em-V10-00-12)
- Updated G4EmDNAPhysics to G4GenericIon usage for Z>2

05-Apr-2014, V.Ivanchenko (phys-ctor-em-V10-00-11)
- G4EmLivermorePhysics, G4EmLivermorePolarizedPhysics, G4EmPenelopePhysics,
  G4EmStandardPhysics_option3, G4EmStandardPhysics_option4 - cleanup
    msc instantiation for hadrons (use the same models for
    particle/anti_particle)

02-Apr-2014, V.Ivanchenko (phys-ctor-em-V10-00-10)
- G4EmLowEPPhysics, G4EmStandardPhysics_option3,
  G4EmStandardPhysics_option4, G4EmLivermoreStandardPhysics - cleanup
    gamma and e- models instantiation

28-Feb-2014, V.Ivanchenko (phys-ctor-em-V10-00-09)
- G4EmLowEPPhysics - added G4LowEWentzelVIModel

14-Feb-2014, V.Ivanchenko (phys-ctor-em-V10-00-08)
- G4EmDNAPhysics_option1 - added new constructor for DNA physics

04-Feb-2014, V.Ivanchenko (phys-ctor-em-V10-00-07)
- G4EmStandardPhysics, G4EmStandardPhysics_option1,
  G4EmStandardPhysics_option2 - added Coulomb scattering process for
    pions, kaons, proton, anti-proton in order to have more smooth
    transition from EM to hadronic scattering

31-Jan-2014, V.Ivanchenko (phys-ctor-em-V10-00-06)
- G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmPenelopePhysics, G4EmStandardPhysics_option3 - use the same
    order of processes for e+- and the same comments, this does not
    change any result but make more easy comparison of log
    files for different EM physics options

15-Jan-2014, V.Ivanchenko (phys-ctor-em-V10-00-05)
- G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmPenelopePhysics: use G4UrbanMscModel for pions, kaons, protons
    instead of WentzelVI to have more accurate ranges of low-energy
    hadrons (in particular, protons)

14-Jan-2014, V.Ivanchenko (phys-ctor-em-V10-00-04)
- G4EmStandardPhysics_option4, G4EmLivermorePhysics,
  G4EmPenelopePhysics: use RangeFactor=0.01 to increase
  simulation accuracy

23-Dec-2013, M.Asai (phys-ctor-em-V10-00-03)
- Fix other via-pointer invokation to static methods.

22-Dec-2013, M.Asai (phys-ctor-em-V10-00-02)
- Avoid static G4Scintillation method invoked through a pointer.

18-Dec-2013, P.Gumplinger (phys-ctor-em-V10-00-00 and 01)
- Fix race condision issue in OpticalPhysics
- /optics_engine/setOpProcessUse not available for G4State_Idle

01-Nov-2013, M.K (phys-ctor-em-V09-06-21)
- Update sources.cmake

01-Nov-2013, M.K (phys-ctor-em-V09-06-20)
- Remove temporarly G4EmDNAPhysicsChemistry to avoid conflicts with dna dev

01-Nov-2013, M.K (phys-ctor-em-V09-06-19)
- Modified G4EmDNAPhysicsChemistry
- Update sources.cmake

28-Oct-2013, V.Ivanchenko (phys-ctor-em-V09-06-18)
- G4EmStandardPhysics - disable ApplyCuts option
- G4EmStandardPhysics_option2 - removed unused header

10-Oct-2013, M.K (phys-ctor-em-V09-06-17)
- Same as before

06-Oct-2013, M.K (phys-ctor-em-V09-06-16)
- Same as before

04-Oct-2013, M.K (phys-ctor-em-V09-06-15)
- Remove unused variable

03-Oct-2013, M.K (phys-ctor-em-V09-06-14)
- DNA chemistry physics list updated

16-Sep-2013, V.Ivanchenko (phys-ctor-em-V09-06-13)
- G4EmStandardPhysics - enable ApplyCuts option
- G4EmStandardPhysics_option2 - disable ApplyCuts option
    both changings are needed to check an effect of these options
    to optimise EM for the release

14-Sep-2013, M.Asai (phys-ctor-em-V09-06-12)
- Further fix G4OpticalPhysics for MT.

12-Sep-2013, M.Asai (phys-ctor-em-V09-06-11)
- Fix G4OpticalPhysics for MT.

21-Aug-2013, V.Ivanchenko (phys-ctor-em-V09-06-10)
-  Removed G4UrbanMscModel95 from EmDNA constructor

19-Aug-2013, V.Ivanchenko (phys-ctor-em-V09-06-09)
-  in all constructors use G4UrbanMscModel instead of Urban93 or Urban95

17-Jun-2013, Alberto Ribon		(phys-ctor-em-V09-06-08)
- Fixed compilation warning in G4EmDNAPhysicsChemistry.

29-Mar-2013, Andrea Dotti		(phys-ctor-em-V09-06-07)
- Changes needed for MT: now G4VUserPhysicsList is a split class

21-Mar-2013, A. Dotti (phys-ctor-em-V09-06-06)
- Use Get/Set methods to access master process manager pointer for G4ParticleDefinition
in EmDNA constructor (co-working tag with particles-V09-06-08)

27-Feb-2013, V.Ivanchenko (phys-ctor-em-V09-06-05)
-  in all constructors improved verbose oputput and fixed warning from
      the clang compiler on MacOS

19-Feb-2013, V.Ivanchenko (phys-ctor-em-V09-06-04)
-  in all constructors G4UrbanMscModel95 substituted by G4UrbanMscModel
-  G4EmStandardPhysics_option4 - low limit increased from 10 eV to 100 eV

13-Feb-2013, V.Ivanchenko (phys-ctor-em-V09-06-03)
-  G4EmLivermorePhysics - set low-limit 100 eV and number of bins
     for tables 220 to avoid problems in Livermore ionisation for
     electron stopping powers and ranges

01-Feb-2013, V.Ivanchenko (phys-ctor-em-V09-06-02)
-  G4EmExtraPhysics and G4EmMessenger are moved to gamma_lepto_nuclear
   subdirectory
-  removed unused dependences from GNUmakefile and source.cmake

30-Jan-2013, Mathieu Karamitros, G.Folger (phys-ctor-em-V09-06-01)
-  First and simple approach to solve process manager initialization after
    migratioon to G4MT.

10-Jan-2013, Gunter Folger              (phys-ctor-em-V09-06-00)
- new directory structure introduced.
   constructors/electromagnetic classes
