Defines the detector geometry and magnetic fields for the PALLAS simulation. More...

#include <PlasmaMLPALLASGeometryConstruction.hh>

Inheritance diagram for PlasmaMLPALLASGeometryConstruction:

Collaboration diagram for PlasmaMLPALLASGeometryConstruction:

Public Member Functions
	PlasmaMLPALLASGeometryConstruction ()
	Default constructor.

	~PlasmaMLPALLASGeometryConstruction () override
	Destructor.

Display Control
void	SetStatusDisplayGeometry (const G4int statusdisplay)

void	SetStatusDisplayCollimators (const G4int statusdisplay)

void	SetStatusDisplayQuadrupoles (const G4int statusdisplay)

const int	GetStatusDisplayGeometry () const

const int	GetStatusDisplayCollimators () const

const int	GetStatusDisplayQuadrupoles () const

Geometry Parameters
void	SetQ1Length (const G4double QLength)

void	SetQ2Length (const G4double QLength)

void	SetQ3Length (const G4double QLength)

void	SetQ4Length (const G4double QLength)

void	SetSourceQ1Distance (const G4double distance)

void	SetQ1Q2Distance (const G4double distance)

void	SetQ2Q3Distance (const G4double distance)

void	SetQ3Q4Distance (const G4double distance)

void	SetSourceCollimatorsDistance (const G4double distance)

const float	GetQ1Length () const

const float	GetQ2Length () const

const float	GetQ3Length () const

const float	GetQ4Length () const

const float	GetSourceQ1Distance () const

const float	GetQ1Q2Distance () const

const float	GetQ2Q3Distance () const

const float	GetQ3Q4Distance () const

const float	GetSourceCollimatorsDistance () const

Magnetic Field Parameters
void	SetQ1Gradient (const G4double QGrad)

void	SetQ2Gradient (const G4double QGrad)

void	SetQ3Gradient (const G4double QGrad)

void	SetQ4Gradient (const G4double QGrad)

void	SetStatusMapBField (const G4int status)

void	SetConstantDipoleBField (const G4double BField)

const float	GetQ1Gradient () const

const float	GetQ2Gradient () const

const float	GetQ3Gradient () const

const float	GetQ4Gradient () const

const int	GetStatusMapBField () const

const float	GetConstantDipoleBField () const

Geometry Construction
void	SetLogicalVolumeColor (G4LogicalVolume *LogicalVolume, G4String color)
	Set color for a given logical volume.

void	CreateWorldAndHolder ()
	Create world and base holder.

void	ConstructQuadrupolesVolume ()
	Build quadrupole logical volumes.

void	ConstructQuadrupoles ()
	Place quadrupoles into the geometry.

void	ConstructCellulePart ()
	Construct the "Cellule" part of the setup.

void	ConstructLIFPart ()
	Construct the LIF (Laser Induced Fluorescence) section.

void	ConstructSection1Part ()
	Construct Section 1.

void	ConstructSection2Part ()
	Construct Section 2.

void	ConstructSection3Part ()
	Construct Section 3.

void	ConstructSection4Part ()
	Construct Section 4.

void	ConstructCollimators ()
	Construct all collimators.

void	ConstructSection4DumpPart ()
	Construct dump section in Section 4.

void	ConstructFullPALLASGeometry ()
	Build the full detailed PALLAS geometry.

void	ConstructSimplifiedPALLASGeometry ()
	Build a simplified version of the PALLAS geometry.

void	ConstructSDandField () override
	Construct sensitive detectors and magnetic fields.

G4VPhysicalVolume *	Construct () override
	Construct method required by Geant4 kernel.

static void	Print ()
	Print geometry parameters.

Detailed Description

Defines the detector geometry and magnetic fields for the PALLAS simulation.

Author: Arnaud HUBER huber.nosp@m.@lp2.nosp@m.ib.in.nosp@m.2p3..nosp@m.fr - Alexei SYTOV sytov.nosp@m.@inf.nosp@m.n.it

Date: 2025

Copyright: PALLAS Project - GEANT4 Collaboration

This class is responsible for:

Building the world and detector components.
Setting visualization attributes.
Defining quadrupoles, collimators, and experimental sections.
Handling field configurations (quadrupole gradients, dipole fields).
Providing user control over geometry display.

Constructor & Destructor Documentation

◆ PlasmaMLPALLASGeometryConstruction()

PlasmaMLPALLASGeometryConstruction::PlasmaMLPALLASGeometryConstruction ( )

Default constructor.

Constructor for PlasmaMLPALLASGeometryConstruction.

Initializes the base geometry and attaches the geometry messenger for interactive user control via macro commands.

◆ ~PlasmaMLPALLASGeometryConstruction()

PlasmaMLPALLASGeometryConstruction::~PlasmaMLPALLASGeometryConstruction ( )

overridedefault

Destructor.

Destructor for PlasmaMLPALLASGeometryConstruction.

Member Function Documentation

◆ Construct()

G4VPhysicalVolume * PlasmaMLPALLASGeometryConstruction::Construct ( )

override

Construct method required by Geant4 kernel.

Construct the full detector geometry for the simulation.

This method initializes and builds all the physical volumes required for the simulation. It cleans up any previously defined geometry, applies common rotation matrices, and constructs the detector components according to display flags.

Steps performed:

Clean existing geometry and volume stores to avoid duplication.
Define common rotation matrices used for detector components.
Create the world volume and geometry holder.
Construct quadrupoles volume.
Build either the full or simplified PALLAS geometry depending on configuration flags.
Optionally construct collimators and quadrupoles if enabled.
Return the fully initialized world volume.

Returns: Pointer to the top-level physical volume (PhysicalWorld) containing the entire detector setup.

Create the world and main holder volume

Construct quadrupoles container volume

Choose between full or simplified PALLAS geometry

Optionally construct collimators

Optionally construct quadrupoles

◆ ConstructCellulePart()

void PlasmaMLPALLASGeometryConstruction::ConstructCellulePart ( )

Construct the "Cellule" part of the setup.

Construct the cell assembly component.

Loads a GDML model representing two connected plasma cells and places it inside the holder volume.

◆ ConstructCollimators()

void PlasmaMLPALLASGeometryConstruction::ConstructCollimators ( )

Construct all collimators.

Construct the Collimators part.

Loads GDML models for section1 and places them inside the holder volume.

◆ ConstructFullPALLASGeometry()

void PlasmaMLPALLASGeometryConstruction::ConstructFullPALLASGeometry ( )

Build the full detailed PALLAS geometry.

Construct the FULL PALLAS Geometry (mostly for VISUALIZATION !!!).

Call of the previous construction function.

◆ ConstructLIFPart()

void PlasmaMLPALLASGeometryConstruction::ConstructLIFPart ( )

Construct the LIF (Laser Induced Fluorescence) section.

Construct the LIF (Laser-Induced Fluorescence) diagnostic components.

Loads GDML models for optical diagnostics (windows, cross, breadboards, etc.) and places them inside the holder volume.

◆ ConstructQuadrupoles()

void PlasmaMLPALLASGeometryConstruction::ConstructQuadrupoles ( )

Place quadrupoles into the geometry.

Construct realistic quadrupoles from GDML models.

Loads quadrupole geometries from GDML files (CAD models) and places them in the beamline.

◆ ConstructQuadrupolesVolume()

void PlasmaMLPALLASGeometryConstruction::ConstructQuadrupolesVolume ( )

Build quadrupole logical volumes.

Construct quadrupole volumes with simplified shapes.

Creates approximate quadrupole representations using parameterized boxes and places them in the beamline.

◆ ConstructSDandField()

void PlasmaMLPALLASGeometryConstruction::ConstructSDandField ( )

override

Construct sensitive detectors and magnetic fields.

Construct sensitive detectors and define the magnetic field for the geometry.

This method configures the magnetic field used in the simulation. It sets dipole and quadrupole field components, assigns quadrupole lengths and drift distances, and attaches the field manager to the geometry's logical volume hierarchy.

Steps performed:

Create and configure a custom magnetic field (PlasmaMLPALLASMagneticField).
Set dipole field and map field status.
Define quadrupole gradients, lengths, and drift distances.
Initialize the G4FieldManager and attach a chord finder with a Runge–Kutta 4th order stepper.
Apply the magnetic field manager to all daughter logical volumes.

Note: The magnetic field configuration directly affects particle transport and beam optics in the Geant4 simulation.

Set constant dipole magnetic field

Enable or disable field map usage

Configure quadrupole gradients (Tesla = 0.001 * MV * ns / mm²)

Configure quadrupole lengths

Configure quadrupole drift distances

Create a chord finder with stepper precision of 1 µm

◆ ConstructSection1Part()

void PlasmaMLPALLASGeometryConstruction::ConstructSection1Part ( )

Construct Section 1.

Construct the Section1 part (ISO chamber between Q1 & Q2).

Loads GDML models for section1 and places them inside the holder volume.

!!!! Problem with ISO Chamber GDML file !!!!!

◆ ConstructSection2Part()

void PlasmaMLPALLASGeometryConstruction::ConstructSection2Part ( )

Construct Section 2.

Construct the Section2 part (ASMRemovalChamber, BreadboardRemovalChamber, ChassisReùovalChamber and ISOTubes).

Loads GDML models for section2 and places them inside the holder volume.

◆ ConstructSection3Part()

void PlasmaMLPALLASGeometryConstruction::ConstructSection3Part ( )

Construct Section 3.

Construct the Section3 part (ASMPoutre & YAGStation).

Loads GDML models for section3 and places them inside the holder volume.

◆ ConstructSection4DumpPart()

void PlasmaMLPALLASGeometryConstruction::ConstructSection4DumpPart ( )

Construct dump section in Section 4.

Construct the Section4Dump part (Shieldings, chassis & DiagsChamber).

Loads GDML models for section4 dump and places them inside the holder volume.

◆ ConstructSection4Part()

void PlasmaMLPALLASGeometryConstruction::ConstructSection4Part ( )

Construct Section 4.

Construct the Section4 part (DipoleChamber, Dipole & 2 YAGs).

Loads GDML models for section4 and places them inside the holder volume.

◆ ConstructSimplifiedPALLASGeometry()

void PlasmaMLPALLASGeometryConstruction::ConstructSimplifiedPALLASGeometry ( )

Build a simplified version of the PALLAS geometry.

Construct the Simplified PALLAS Geometry (mostly for PRODUCTION !!!).

Call only Section4 because other parts can induce stuck Track due to GDML files reconstruction from CAD files.

◆ CreateWorldAndHolder()

void PlasmaMLPALLASGeometryConstruction::CreateWorldAndHolder ( )

Create world and base holder.

Create the world and holder volumes.

Defines the simulation world as a large vacuum box and places a holder volume inside it for containing components.

◆ GetConstantDipoleBField()

const float PlasmaMLPALLASGeometryConstruction::GetConstantDipoleBField ( ) const

inline

◆ GetQ1Gradient()

const float PlasmaMLPALLASGeometryConstruction::GetQ1Gradient ( ) const

inline

◆ GetQ1Length()

const float PlasmaMLPALLASGeometryConstruction::GetQ1Length ( ) const

inline

◆ GetQ1Q2Distance()

const float PlasmaMLPALLASGeometryConstruction::GetQ1Q2Distance ( ) const

inline

◆ GetQ2Gradient()

const float PlasmaMLPALLASGeometryConstruction::GetQ2Gradient ( ) const

inline

◆ GetQ2Length()

const float PlasmaMLPALLASGeometryConstruction::GetQ2Length ( ) const

inline

◆ GetQ2Q3Distance()

const float PlasmaMLPALLASGeometryConstruction::GetQ2Q3Distance ( ) const

inline

◆ GetQ3Gradient()

const float PlasmaMLPALLASGeometryConstruction::GetQ3Gradient ( ) const

inline

◆ GetQ3Length()

const float PlasmaMLPALLASGeometryConstruction::GetQ3Length ( ) const

inline

◆ GetQ3Q4Distance()

const float PlasmaMLPALLASGeometryConstruction::GetQ3Q4Distance ( ) const

inline

◆ GetQ4Gradient()

const float PlasmaMLPALLASGeometryConstruction::GetQ4Gradient ( ) const

inline

◆ GetQ4Length()

const float PlasmaMLPALLASGeometryConstruction::GetQ4Length ( ) const

inline

◆ GetSourceCollimatorsDistance()

const float PlasmaMLPALLASGeometryConstruction::GetSourceCollimatorsDistance ( ) const

inline

◆ GetSourceQ1Distance()

const float PlasmaMLPALLASGeometryConstruction::GetSourceQ1Distance ( ) const

inline

◆ GetStatusDisplayCollimators()

const int PlasmaMLPALLASGeometryConstruction::GetStatusDisplayCollimators ( ) const

inline

◆ GetStatusDisplayGeometry()

const int PlasmaMLPALLASGeometryConstruction::GetStatusDisplayGeometry ( ) const

inline

◆ GetStatusDisplayQuadrupoles()

const int PlasmaMLPALLASGeometryConstruction::GetStatusDisplayQuadrupoles ( ) const

inline

◆ GetStatusMapBField()

const int PlasmaMLPALLASGeometryConstruction::GetStatusMapBField ( ) const

inline

◆ Print()

void PlasmaMLPALLASGeometryConstruction::Print ( )

static

Print geometry parameters.

Print a summary of the current geometry setup.

◆ SetConstantDipoleBField()

void PlasmaMLPALLASGeometryConstruction::SetConstantDipoleBField ( const G4double BField )

inline

◆ SetLogicalVolumeColor()

void PlasmaMLPALLASGeometryConstruction::SetLogicalVolumeColor	(	G4LogicalVolume *	LogicalVolume,
		G4String	Color
	)

Set color for a given logical volume.

Assign a visualization color to a logical volume.

Predefined colors can be applied to logical volumes for debugging or visualization.

Parameters

LogicalVolume	Pointer to the logical volume to colorize.
Color	Name of the color (e.g. "red", "green", "gray").

◆ SetQ1Gradient()

void PlasmaMLPALLASGeometryConstruction::SetQ1Gradient ( const G4double QGrad )

inline

◆ SetQ1Length()

void PlasmaMLPALLASGeometryConstruction::SetQ1Length ( const G4double QLength )

inline

◆ SetQ1Q2Distance()

void PlasmaMLPALLASGeometryConstruction::SetQ1Q2Distance ( const G4double distance )

inline

◆ SetQ2Gradient()

void PlasmaMLPALLASGeometryConstruction::SetQ2Gradient ( const G4double QGrad )

inline

◆ SetQ2Length()

void PlasmaMLPALLASGeometryConstruction::SetQ2Length ( const G4double QLength )

inline

◆ SetQ2Q3Distance()

void PlasmaMLPALLASGeometryConstruction::SetQ2Q3Distance ( const G4double distance )

inline

◆ SetQ3Gradient()

void PlasmaMLPALLASGeometryConstruction::SetQ3Gradient ( const G4double QGrad )

inline

◆ SetQ3Length()

void PlasmaMLPALLASGeometryConstruction::SetQ3Length ( const G4double QLength )

inline

◆ SetQ3Q4Distance()

void PlasmaMLPALLASGeometryConstruction::SetQ3Q4Distance ( const G4double distance )

inline

◆ SetQ4Gradient()

void PlasmaMLPALLASGeometryConstruction::SetQ4Gradient ( const G4double QGrad )

inline

◆ SetQ4Length()

void PlasmaMLPALLASGeometryConstruction::SetQ4Length ( const G4double QLength )

inline

◆ SetSourceCollimatorsDistance()

void PlasmaMLPALLASGeometryConstruction::SetSourceCollimatorsDistance ( const G4double distance )

inline

◆ SetSourceQ1Distance()

void PlasmaMLPALLASGeometryConstruction::SetSourceQ1Distance ( const G4double distance )

inline

◆ SetStatusDisplayCollimators()

void PlasmaMLPALLASGeometryConstruction::SetStatusDisplayCollimators ( const G4int statusdisplay )

inline

◆ SetStatusDisplayGeometry()

void PlasmaMLPALLASGeometryConstruction::SetStatusDisplayGeometry ( const G4int statusdisplay )

inline

◆ SetStatusDisplayQuadrupoles()

void PlasmaMLPALLASGeometryConstruction::SetStatusDisplayQuadrupoles ( const G4int statusdisplay )

inline

◆ SetStatusMapBField()

void PlasmaMLPALLASGeometryConstruction::SetStatusMapBField ( const G4int status )

inline

The documentation for this class was generated from the following files:

include/PlasmaMLPALLASGeometryConstruction.hh
src/PlasmaMLPALLASGeometryConstruction.cc

Public Member Functions

Geometry Construction

Detailed Description

Constructor & Destructor Documentation

◆ PlasmaMLPALLASGeometryConstruction()

◆ ~PlasmaMLPALLASGeometryConstruction()

Member Function Documentation

◆ Construct()

◆ ConstructCellulePart()

◆ ConstructCollimators()

◆ ConstructFullPALLASGeometry()

◆ ConstructLIFPart()

◆ ConstructQuadrupoles()

◆ ConstructQuadrupolesVolume()

◆ ConstructSDandField()

◆ ConstructSection1Part()

◆ ConstructSection2Part()

◆ ConstructSection3Part()

◆ ConstructSection4DumpPart()

◆ ConstructSection4Part()

◆ ConstructSimplifiedPALLASGeometry()

◆ CreateWorldAndHolder()

◆ GetConstantDipoleBField()

◆ GetQ1Gradient()

◆ GetQ1Length()

◆ GetQ1Q2Distance()

◆ GetQ2Gradient()

◆ GetQ2Length()

◆ GetQ2Q3Distance()

◆ GetQ3Gradient()

◆ GetQ3Length()

◆ GetQ3Q4Distance()

◆ GetQ4Gradient()

◆ GetQ4Length()

◆ GetSourceCollimatorsDistance()

◆ GetSourceQ1Distance()

◆ GetStatusDisplayCollimators()

◆ GetStatusDisplayGeometry()

◆ GetStatusDisplayQuadrupoles()

◆ GetStatusMapBField()

◆ Print()

◆ SetConstantDipoleBField()

◆ SetLogicalVolumeColor()

◆ SetQ1Gradient()

◆ SetQ1Length()

◆ SetQ1Q2Distance()

◆ SetQ2Gradient()

◆ SetQ2Length()

◆ SetQ2Q3Distance()

◆ SetQ3Gradient()

◆ SetQ3Length()

◆ SetQ3Q4Distance()

◆ SetQ4Gradient()

◆ SetQ4Length()

◆ SetSourceCollimatorsDistance()

◆ SetSourceQ1Distance()

◆ SetStatusDisplayCollimators()

◆ SetStatusDisplayGeometry()

◆ SetStatusDisplayQuadrupoles()

◆ SetStatusMapBField()