#include "TGeoCompositeShape.h"
#include "TGeoCone.h"
#include "TGeoManager.h"
#include "TGeoPara.h"
#include "TGeoTrd2.h"
#include "TGeoTube.h"
#include <iomanip>
#include <iostream>

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Functions
Int_t	CreateSensors ()
	=======================================================================
Int_t	CreateSectors ()
	=======================================================================
Int_t	CreateLadders ()
	=======================================================================
TGeoVolume *	ConstructModule (const char name, TGeoVolume sector, Double_t cableLength)
	=======================================================================
TGeoVolume *	ConstructHalfLadder (const TString &name, Int_t nSectors, Int_t *sectorTypes, char align)
	=======================================================================
TGeoVolume *	ConstructLadder (Int_t LadderIndex, TGeoVolume halfLadderU, TGeoVolume halfLadderD, Double_t gapY, Double_t shiftZ)
	=======================================================================
TGeoVolume *	ConstructStation (Int_t iStation, Int_t nLadders, Int_t *ladderTypes, Double_t rHole)
	=======================================================================
void	CheckVolume (TGeoVolume *volume)
	=======================================================================
void	CheckVolume (TGeoVolume *volume, fstream &file)
	=======================================================================
Double_t	BeamPipeRadius (Double_t z)
	=======================================================================
TGeoVolume *	ConstructFrameElement (const TString &name, TGeoVolume *frameBoxVol, Double_t x)
	=======================================================================
TGeoVolume *	ConstructSmallCone (Double_t coneDz)
	=======================================================================
TGeoVolume *	ConstructBigCone (Double_t coneDz)
	=======================================================================
void	create_rootgeom_SSD_v17a (const char *geoTag="v17a")
Int_t	CreateMedia ()
	=========================================================================== Create media
void	AddCarbonLadder (Int_t LadderIndex, TGeoVolume *ladder, Double_t xu, Double_t ladderY, Double_t ladderZ)
	=======================================================================

Variables
const Double_t	gkSensorThickness = 0.03
const Double_t	gkChainGapY = 0.00
const Double_t	gkCableThickness = 0.02
const Double_t	gkSectorOverlapY = 0.27
const Double_t	gkSectorGapZ = 0.02
const Double_t	gkLadderOverlapX = 0.30
const Double_t	gkLadderGapZ = 1.00
const Double_t	gkSectorGapZFrame = 0.10
const Bool_t	gkConstructCables = kTRUE
const Bool_t	gkConstructCones = kFALSE
const Bool_t	gkConstructFrames = kTRUE
const Bool_t	gkConstructSmallFrames = kTRUE
const Bool_t	gkCylindricalFrames = kTRUE
const Double_t	gkFrameThickness = 0.2
const Double_t	gkThinFrameThickness = 0.05
const Double_t	gkFrameStep = 4.0
const Double_t	gkCylinderDiaInner
const Double_t	gkCylinderDiaOuter
const Double_t	gkPipeZ1 = 22.0
const Double_t	gkPipeR1 = 1.8
const Double_t	gkPipeZ2 = 50.0
const Double_t	gkPipeR2 = 1.8
const Double_t	gkPipeZ3 = 125.0
const Double_t	gkPipeR3 = 5.5
TGeoMedium *	gStsMedium = NULL
TGeoManager *	gGeoMan = NULL

Function Documentation

◆ AddCarbonLadder()

void AddCarbonLadder	(	Int_t	LadderIndex,
		TGeoVolume *	ladder,
		Double_t	xu,
		Double_t	ladderY,
		Double_t	ladderZ )

=========================================================================== Add a carbon support to a ladder

Arguments: LadderIndex ladder number ladder pointer to ladder xu size of halfladder ladderY height of ladder along y ladderZ thickness of ladder along z

Definition at line 1221 of file create_rootgeom_SSD_v17a.C.

References TGeoVolume::AddNode(), TGeoShape::ComputeBBox(), ConstructFrameElement(), TGeoVolume::GetShape(), gkFrameStep, gkFrameThickness, gStsMedium, i, and TGeoRotation::RotateY().

Referenced by ConstructLadder().

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◆ BeamPipeRadius()

Double_t BeamPipeRadius ( Double_t z )

=========================================================================== Calculate beam pipe outer radius for a given z

Definition at line 1561 of file create_rootgeom_SSD_v17a.C.

References gkPipeR1, gkPipeR2, gkPipeR3, gkPipeZ2, gkPipeZ3, and z.

◆ CheckVolume() [1/2]

void CheckVolume ( TGeoVolume * volume )

=========================================================================== Volume information for debugging

Definition at line 1495 of file create_rootgeom_SSD_v17a.C.

References TGeoBBox::GetDX(), TGeoBBox::GetDY(), TGeoBBox::GetDZ(), TGeoNode::GetMatrix(), TGeoVolume::GetMedium(), TNamed::GetName(), TGeoVolume::GetNdaughters(), TGeoVolume::GetNode(), TGeoVolume::GetShape(), TGeoMatrix::GetTranslation(), TGeoNode::GetVolume(), and TGeoVolume::IsAssembly().

Referenced by ConstructHalfLadder(), and create_rootgeom_SSD_v17a().

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◆ CheckVolume() [2/2]

void CheckVolume	(	TGeoVolume *	volume,
		fstream &	file )

=========================================================================== Volume information for output to file

Definition at line 1531 of file create_rootgeom_SSD_v17a.C.

References TGeoBBox::GetDX(), TGeoBBox::GetDY(), TGeoBBox::GetDZ(), TGeoVolume::GetMedium(), TNamed::GetName(), TGeoVolume::GetNdaughters(), TGeoVolume::GetNode(), TGeoVolume::GetShape(), TGeoNode::GetVolume(), and TGeoVolume::IsAssembly().

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◆ ConstructBigCone()

TGeoVolume * ConstructBigCone ( Double_t coneDz )

=======================================================================

Definition at line 1732 of file create_rootgeom_SSD_v17a.C.

References TGeoVolume::AddNode(), gGeoMan, gStsMedium, TGeoCombiTrans::RegisterYourself(), TGeoCombiTrans::RotateX(), TGeoCombiTrans::SetDy(), TGeoCombiTrans::SetDz(), and TGeoVolume::SetLineColor().

Referenced by create_rootgeom_SSD_v17a().

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◆ ConstructFrameElement()

TGeoVolume * ConstructFrameElement	(	const TString &	name,
		TGeoVolume *	frameBoxVol,
		Double_t	x )

=======================================================================

Definition at line 1571 of file create_rootgeom_SSD_v17a.C.

References TGeoVolume::AddNode(), TMath::Cos(), gGeoMan, gkConstructSmallFrames, gkCylinderDiaInner, gkCylinderDiaOuter, gkCylindricalFrames, gkFrameStep, gkFrameThickness, gkThinFrameThickness, TMath::Pi(), TGeoRotation::RotateX(), TGeoRotation::RotateY(), TGeoVolume::SetLineColor(), and x.

Referenced by AddCarbonLadder().

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◆ ConstructHalfLadder()

TGeoVolume * ConstructHalfLadder	(	const TString &	name,
		Int_t	nSectors,
		Int_t *	sectorTypes,
		char	align )

=========================================================================== Construct a half ladder

A half ladder is a virtual volume (TGeoVolumeAssembly) consisting of several modules arranged on top of each other. The modules have a given overlap in y and a displacement in z to allow for the overlap.

The typ of sectors / modules to be placed must be specified: 1 = sensor01 2 = sensor02 3 = sensor03 4 = sensor04 5 = 2 x sensor04 (chained) 6 = 3 x sensor04 (chained) The cable is added automatically from the top of each sensor to the top of the half ladder. The alignment can be left (l) or right (r), which matters in the case of different x sizes of sensors (e.g. SensorType01).

Arguments: name volume name nSectors number of sectors sectorTypes array with sector types align horizontal alignment of sectors

Definition at line 1141 of file create_rootgeom_SSD_v17a.C.

References TGeoVolumeAssembly::AddNode(), align(), CheckVolume(), TGeoShape::ComputeBBox(), ConstructModule(), TString::Data(), TGeoBBox::GetDX(), TGeoBBox::GetDY(), TGeoBBox::GetDZ(), TGeoVolume::GetShape(), gGeoMan, gkSectorGapZ, gkSectorOverlapY, and TMath::Max().

Referenced by CreateLadders().

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◆ ConstructLadder()

TGeoVolume * ConstructLadder	(	Int_t	LadderIndex,
		TGeoVolume *	halfLadderU,
		TGeoVolume *	halfLadderD,
		Double_t	gapY,
		Double_t	shiftZ )

=========================================================================== Construct a ladder out of two half ladders with vertical gap

The second half ladder will be rotated by 180 degrees in the x-y plane. The two half ladders will be put on top of each other with a vertical gap.

Arguments: name volume name halfLadderU pointer to upper half ladder halfLadderD pointer to lower half ladder gapY vertical gap shiftZ relative displacement along the z axis

Definition at line 1301 of file create_rootgeom_SSD_v17a.C.

References AddCarbonLadder(), TGeoVolumeAssembly::AddNode(), TGeoShape::ComputeBBox(), TGeoBBox::GetDX(), TGeoBBox::GetDY(), TGeoBBox::GetDZ(), TGeoVolume::GetShape(), gkConstructFrames, TMath::Max(), and TGeoRotation::RotateZ().

Referenced by CreateLadders().

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◆ ConstructModule()

TGeoVolume * ConstructModule	(	const char *	name,
		TGeoVolume *	sector,
		Double_t	cableLength )

=========================================================================== Construct a module

A module is a sector plus the readout cable extending from the top of the sector. The cable is made from passive silicon. The cable has the same x size as the sector. Its thickness is given by the global variable gkCableThickness. The cable length is a parameter. The sensor(s) of the sector is/are placed directly in the module; the sector is just auxiliary for the proper placement.

Arguments: name volume name sector pointer to sector volume cableLength length of cable

Definition at line 1044 of file create_rootgeom_SSD_v17a.C.

References TString::Data(), TGeoBBox::GetDX(), TGeoBBox::GetDY(), TGeoBBox::GetDZ(), TGeoNode::GetMatrix(), TGeoVolume::GetNdaughters(), TGeoVolume::GetNode(), TGeoVolume::GetShape(), TGeoMatrix::GetTranslation(), TGeoNode::GetVolume(), gGeoMan, gkCableThickness, gkConstructCables, gStsMedium, TMath::Max(), TGeoVolume::SetLineColor(), and TGeoVolume::SetTransparency().

Referenced by ConstructHalfLadder().

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◆ ConstructSmallCone()

TGeoVolume * ConstructSmallCone ( Double_t coneDz )

=======================================================================

Definition at line 1680 of file create_rootgeom_SSD_v17a.C.

References gGeoMan, and TGeoVolume::SetLineColor().

Referenced by create_rootgeom_SSD_v17a().

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◆ ConstructStation()

TGeoVolume * ConstructStation	(	Int_t	iStation,
		Int_t	nLadders,
		Int_t *	ladderTypes,
		Double_t	rHole )

=========================================================================== Construct a station

The station volume is the minimal box comprising all ladders minus a tube accomodating the beam pipe.

The ladders are arranged horizontally from left to right with a given overlap in x. Every second ladder is slightly displaced upstream from the centre z plane and facing downstream, the others are slightly displaced downstream and facing upstream (rotated around the y axis).

Arguments: name volume name nLadders number of ladders ladderTypes array of ladder types rHole radius of inner hole

Definition at line 1375 of file create_rootgeom_SSD_v17a.C.

References TGeoVolume::AddNode(), TGeoShape::ComputeBBox(), TString::Data(), TGeoBBox::GetDX(), TGeoBBox::GetDY(), TGeoBBox::GetDZ(), TGeoVolume::GetShape(), gkConstructFrames, gkFrameThickness, gkLadderGapZ, gkLadderOverlapX, gStsMedium, TMath::Max(), and TGeoRotation::RotateY().

Referenced by create_rootgeom_SSD_v17a().

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◆ create_rootgeom_SSD_v17a()

void create_rootgeom_SSD_v17a ( const char * geoTag = "v17a" )

Definition at line 224 of file create_rootgeom_SSD_v17a.C.

References TGeoVolume::AddNode(), air, BeamPipeRadius, CheckVolume(), TFile::Close(), TGeoShape::ComputeBBox(), ConstructBigCone(), ConstructSmallCone(), ConstructStation(), CreateLadders(), CreateSectors(), CreateSensors(), TString::Data(), TGeoVolume::Draw(), TGeoVolume::Export(), TGeoBBox::GetDX(), TGeoBBox::GetDY(), TNamed::GetName(), TGeoVolume::GetNode(), TGeoVolume::GetShape(), TGeoNode::GetVolume(), gGeoMan, gkCableThickness, gkChainGapY, gkConstructCables, gkConstructCones, gkLadderGapZ, gkLadderOverlapX, gkPipeR1, gkPipeR2, gkPipeR3, gkPipeZ1, gkPipeZ2, gkPipeZ3, gkSectorGapZ, gkSectorOverlapY, gkSensorThickness, gStsMedium, i, TMath::Max(), TGeoMatrix::RegisterYourself(), TString::ReplaceAll(), TGeoRotation::RotateY(), TGeoRotation::RotateZ(), TGeoVolume::SetLineColor(), and TObject::Write().

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◆ CreateLadders()

Int_t CreateLadders ( )

=========================================================================== Create ladders

Ladders are the building blocks of the stations. They contain several modules placed one after the other along the z axis such that the sectors are arranged vertically (with overlap).

A ladder is constructed out of two half ladders, the second of which is rotated in the x-y plane by 180 degrees and displaced in z direction.

Definition at line 902 of file create_rootgeom_SSD_v17a.C.

References align(), ConstructHalfLadder(), ConstructLadder(), TGeoBBox::GetDZ(), TGeoVolume::GetShape(), gGeoMan, gkSectorGapZ, gkSectorOverlapY, and i.

Referenced by create_rootgeom_SSD_v17a().

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