Editing Geant4 Simulation with Version 11.2.1

==Installing Geant4==

'''CERN Geant4 Guide''': See [https://geant4-userdoc.web.cern.ch/UsersGuides/InstallationGuide/html/index.html here] for a walkthrough to install geant4.

==Geometry Setup==
The geometry for the Geant4 simulation is defined in /home/jlabdaq/CDetMC/src/DetectorConstruction.cc
===General Construction===
* G4 GeometryManager
*# Opens the geometry and removes optimizations (optionally, related to just the specified logical-volume).

  G4GeometryManager::OpenGeometry(G4VPhysicalVolume* pVolume)




* G4LogicalVolume
*# Constructor - sets member data and adds to logical Store, voxel pointer for optimization set to 0 by default.Initializes daughter vector to 0 length.

  G4LogicalVolume::G4LogicalVolume ( G4VSolid *              pSolid,
                                     G4Material *            pMaterial,
                               const G4String &        name,
                                     G4FieldManager *        pFieldMgr = 0,
                                     G4VSensitiveDetector *  pSDetector = 0,
                                     G4UserLimits *          pULimits = 0,
                                     G4bool                  optimise = true)

[[File:G4LogicalVolume2.png|frame|center|alt=a|An example of the G4LogicalVolume constructor]]

* G4LogicalSkinSurface
*# Constructor for skin surface of material

  G4LogicalSkinSurface::G4LogicalSkinSurface  ( const G4String &          name,
                                                      G4LogicalVolume *   vol,
                                                      G4SurfaceProperty * surfaceProperty)

[[File:G4LogicalSkinSurface.png|frame|center|alt=a|An example of the G4LogicalSkinSurface constructor]]

*G4PVPlacement
*# Constructor for the placement of the object

  G4PVPlacement::G4PVPlacement ( G4RotationMatrix *   pRot,
                           const G4ThreeVector &      tlate,
                                 G4LogicalVolume *    pCurrentLogical,
                           const G4String &           pName,
                                 G4LogicalVolume *    pMotherLogical,
                                 G4bool               pMany,
                                 G4int                pCopyNo,
                                 G4bool               pSurfChk = false)

[[File:G4PVPlacement.png|frame|center|alt=a|An example of the G4LogicalSkinSurface constructor]]


*G4OpticalSurface
*# Constructor for a optical surface
  G4OpticalSurface::G4OpticalSurface ( const G4String &                name,
                                             G4OpticalSurfaceModel     model = glisur,
                                             G4OpticalSurfaceFinish    finish = polished,
                                             G4SurfaceType             type = dielectric_dielectric,
                                             G4double                  value = 1.0)

[[File:G4OpticalSurface.png|frame|center|alt=a|An example of one of the Optical Surface constructions in the DetectorConstruction.cc file]]

===General Material Construction===
* G4Element
** Constructor to generate an element from scratch

  G4Element::G4Element   ( const G4String &   name,
                           const G4String &   symbol,
                                 G4double     Zeff,
                                 G4double     Aeff)

[[File:ElementCreation.png|frame|center|alt=a|An example of the element creation used in the DetectorConstruction.cc file]]


*G4Material
** Constructor to generate a material from scratch

  G4Material::G4Material  ( const G4String &    name,
                                  G4double      z,
                                  G4double      a,
                                  G4double      density,
                                  G4State       state = kStateUndefined,
                                  G4double      temp = CLHEP::STP_Temperature,
                                  G4double      pressure = CLHEP::STP_Pressure)

[[File:AddElement.png|frame|center|alt=a|From the DetectorConstruction.cc file. Line 231 shows the creation of a new G4Material, while the lines below add elements to the newly created material.]]
*G4Material (continued)
**Add element to a material

  void G4Material::AddElement  ( G4Element * element,
                                 G4int       nAtoms)



*G4Material (continued)
**Add property to a material

  G4MaterialPropertyVector * G4MaterialPropertiesTable::AddProperty ( const char *  	 key,
                                                                            G4double *    photonEnergies,
                                                                            G4double *    propertyValues,
                                                                            G4int         numEntries,
                                                                            G4bool        createNewKey = false,
                                                                            G4bool        spline = false)
[[File:AddProperty.png|frame|center|alt=a|An example usage of the AddProperty function in the DetectorConstruction.cc file]]

===Scintillator===
[[File:G4Scintillator.png|1200x1200px|center|alt=a|An example of the scintillator construction in the DetectorConstruction.cc file]]

===Light Guide===
[[File:G4LightGuide.png|1200x1200px|center|alt=a|An example of one of the light guide constructions in the DetectorConstruction.cc file]]

===Phototube===
[[File:G4Phototube.png|1200x1200px|center|alt=a|An example of the Phototube construction in the DetectorConstruction.cc file]]

==Graph Analysis==
Found in /home/CDetMC/analysis/plots/

{| class="wikitable" style="margin-left: auto; margin-right: auto; border: none;"
|+ Graph Analysis of Tests
|-
! Plot Title !! scope="col" style="width: 25em;" | Description !! Plot
|-
| C1 || Position of incident muons in the x, y, and z coordinates, and the time of impacts. we guess ¯\_(ツ)_/¯ || [[File:c1_pdf.png|450x450px|center|alt=a]]
|-
| C2RA || The truth values used in the simulation. Primitive energy. The Theta and Phi angles when measured. The particle pdg value. || [[File:c2RA-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C3RA || The simulation results. Detector of hits on the scintillators. The measured mass of the particle is the interpreted PDG value. fingerID shows the event counts and which finger the events occur at. fingerED shows the energy deposited and how many times it occurred. fingerPMTID shows the PMTID's related to each scintillator and the number of incidents for each. Finger PMT Time shows the distribution of time values. || [[File:c3RA-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C4RA || Histograms for energy deposition and number of photo electrons || [[File:c4RA-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C7RA || Energy deposition vs number of photons || [[File:c7RA-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C8RA || Energy deposition vs number of photons || [[File:c8RA-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C12 || Shows the momentum of particles in each of the directions. || [[File:c12-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C13 || Event impact point distribution || [[File:c13-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C14 || Recorded incident impact points in the x, y, and z directions. || [[File:c14-pdf.png|450x450px|center|alt=a |Placeholder]]
|-
| C33RA || Angle of incident ± π/2 || [[File:c33RA-pdf.png|450x450px|center|alt=a |Placeholder]]
|}