Geometry Class Reference

Definition of the Geometry class for the PALLAS project. More...

#include <Geometry.hh>

Public Member Functions
	Geometry ()
	Constructor for Geometry class.
	~Geometry ()
	Destructor for Geometry class.
G4LogicalVolume *	GetGDMLVolume (const char *fileName, const char *volumeName, G4Material *material)
	Load and retrieve a GDML-defined volume.
G4LogicalVolume *	GetQuadrupoleVolume (G4String name, G4double dx, G4double dy, G4double sz)
	Create a quadrupole magnet volume.
G4LogicalVolume *	GetFakeDiagsChamber ()
	Create a diagnostic chamber volume (simplified).
void	Cleanup ()
	Cleanup allocated geometry components.

Detailed Description

Definition of the Geometry class for the PALLAS project.

Provides methods to create, retrieve, and manage geometry volumes.

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 provides methods to construct and retrieve different detector and beamline components (volumes, chambers, quadrupoles) used in the Geant4 simulation of the PALLAS experiment.

The Geometry class is responsible for constructing and managing Geant4 geometrical objects such as quadrupoles, diagnostic chambers, and GDML-defined volumes. It also provides cleanup functions for memory management.

Constructor & Destructor Documentation

Geometry()

Geometry::Geometry

(

)

Constructor for Geometry class.

Default constructor.

Initializes internal pointers and sets up the geometry environment.

~Geometry()

Geometry::~Geometry

(

)

Destructor for Geometry class.

Destructor.

Cleans up allocated resources.

Cleans up any allocated resources associated with the geometry.

Member Function Documentation

Cleanup()

void Geometry::Cleanup

(

)

Cleanup allocated geometry components.

Frees memory for logical volumes and solid shapes.

GetFakeDiagsChamber()

G4LogicalVolume * Geometry::GetFakeDiagsChamber

(

)

Create a diagnostic chamber volume (simplified).

Create a simplified diagnostic chamber volume.

Returns

Pointer to the created G4LogicalVolume.

This method constructs a cylindrical chamber by subtracting two tubular volumes, representing the diagnostic chamber. The material used is aluminum.

Returns

Pointer to the created G4LogicalVolume.

GetGDMLVolume()

G4LogicalVolume * Geometry::GetGDMLVolume	(	const char *	path,
		const char *	VName,
		G4Material *	material
	)

Load and retrieve a GDML-defined volume.

Parameters

fileName	Path to the GDML file.
volumeName	Name of the volume to retrieve.
material	Material to assign to the volume.

Returns

Pointer to the created G4LogicalVolume.

This method uses a GDML parser to read a geometry description from a GDML file, retrieve the specified volume, and assign it the provided material.

Parameters

path	Path to the GDML file.
VName	Name of the volume inside the GDML file.
material	Material to assign to the retrieved logical volume.

Returns

Pointer to the created G4LogicalVolume.

GetQuadrupoleVolume()

G4LogicalVolume * Geometry::GetQuadrupoleVolume	(	G4String	name,
		G4double	dx,
		G4double	dy,
		G4double	dz
	)

Create a quadrupole magnet volume.

Parameters

name	Name of the quadrupole volume.
dx	dx length.
dy	dy length.
dz	dz length.

Returns

Pointer to the created G4LogicalVolume.

Constructs a simple box volume with the given dimensions and assigns it a vacuum material.

Parameters

name	Name of the quadrupole logical volume.
dx	Size of the box along the X-axis [mm].
dy	Size of the box along the Y-axis [mm].
dz	Size of the box along the Z-axis [mm].

Returns

Pointer to the created G4LogicalVolume.

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

• include/Geometry.hh
• src/Geometry.cc