// Authors:
// F. Manso
// A. Morsch
+// R. Tieulent
//-------------------------------------------------------------------------
//_____________________________________________________________________________
AliPIPEv4::AliPIPEv4():
- fRmax(1.98), // outer radius of Be beam pipe
- fBe(0.08), // width of Be beam pipe
- fZ1(50.), // beginning of beam pipe z location (A side)
- fZ2(-49), // end of Be beam pipe z location (C side)
- fZ3(-82.) // end of beam pipe z location (C side)
+ fRmax(1.8), // outer radius of Be beam pipe
+ fBe(0.08), // width of Be beam pipe
+ fZ1(44.4), // beginning of Be beam pipe z location (A side)
+ fZ2(-44.4) // end of Be beam pipe z location (C side)
{
// Constructor
}
//_____________________________________________________________________________
AliPIPEv4::AliPIPEv4(const char *name, const char *title)
: AliPIPE(name,title),
- fRmax(1.98), // outer radius of Be beam pipe
- fBe(0.08), // width of Be beam pipe
- fZ1(50.), // beginning of beam pipe z location (A side)
- fZ2(-49.), // end of Be beam pipe z location (C side)
- fZ3(-82.) // end of Steel beam pipe z location (C side)
+ fRmax(1.8), // outer radius of Be beam pipe
+ fBe(0.08), // width of Be beam pipe
+ fZ1(44.4), // beginning of beam pipe z location (A side)
+ fZ2(-44.4) // end of Be beam pipe z location (C side)
{
// Constructor
}
-//_____________________________________________________________________________
-AliPIPEv4::AliPIPEv4(const char *name, const char *title, const Float_t rmax, const Float_t width)
- : AliPIPE(name,title),
- fRmax(rmax), // outer radius of Be beam pipe
- fBe(width), // width of Be beam pipe
- fZ1(50.), // beginning of beam pipe z location (A side)
- fZ2(-49.), // end of Be beam pipe z location (C side)
- fZ3(-82.) // end of Steel beam pipe z location (C side)
-{
- // Constructor
-}
-
-//_____________________________________________________________________________
-AliPIPEv4::AliPIPEv4(const char *name, const char *title, const Float_t rmax, const Float_t width, const Float_t z2)
- : AliPIPE(name,title),
- fRmax(rmax), // outer radius of Be beam pipe
- fBe(width), // width of Be beam pipe
- fZ1(50.), // beginning of beam pipe z location (A side)
- fZ2(z2), // end of Be beam pipe z location (C side)
- fZ3(-82.) // end of Steel beam pipe z location (C side)
-{
- // Constructor
-}
-
//___________________________________________
void AliPIPEv4::CreateGeometry()
//const TGeoMedium* kMedKapton = gGeoManager->GetMedium("PIPE_KAPTON");
//const TGeoMedium* kMedAco = gGeoManager->GetMedium("PIPE_ANTICORODAL");
//const TGeoMedium* kMedNEG = gGeoManager->GetMedium("PIPE_NEG COATING");
- //const TGeoMedium* kMedAlu = gGeoManager->GetMedium("PIPE_ALU"); //FM
- //const TGeoMedium* kMedAlu5083 = gGeoManager->GetMedium("PIPE_AA5083"); //FM
- const TGeoMedium* kMedAlu2219 = gGeoManager->GetMedium("PIPE_AA2219"); //FM
-
+ //const TGeoMedium* kMedAlu = gGeoManager->GetMedium("PIPE_ALU"); // fm
+ const TGeoMedium* kMedAlu2219 = gGeoManager->GetMedium("PIPE_AA2219"); // fm
+ const TGeoMedium* kMedAlu5083 = gGeoManager->GetMedium("PIPE_AA5083"); // fm
+
// Top volume
TGeoVolume* top = gGeoManager->GetVolume("ALIC");
//
*/
-
//////////////////// NEW BEAM PIPE GEOMETRY FOR MuonForwardTracker , Author: F. Manso /////////////////////////
-
- /*
- //-------------------------------- New ITS L0 layer --------------------------------//
- // Silicon L0
- TGeoPcon* itsL0si = new TGeoPcon(0., 360., 2);
-
- // 50 microns silicium
- Float_t wSilicium=0.005;
- // Internal radius
- Float_t radiusL0=2.20;
-
- itsL0si->DefineSection(0, 21./2., radiusL0, radiusL0 + wSilicium);
- itsL0si->DefineSection(1,-21./2., radiusL0, radiusL0 + wSilicium);
- TGeoVolume* voitsL0si = new TGeoVolume("voitsL0si",itsL0si,kMedSi);
-
- // 36 microns of Copper
- TGeoPcon* itsL0cu = new TGeoPcon(0., 360., 2);
- itsL0cu->DefineSection(0, 21./2., radiusL0 + wSilicium, radiusL0 + wSilicium + 0.0036);
- itsL0cu->DefineSection(1,-21./2., radiusL0 + wSilicium, radiusL0 + wSilicium + 0.0036);
- TGeoVolume* voitsL0cu = new TGeoVolume("voitsL0cu",itsL0cu,kMedCu);
-
- top->AddNode(voitsL0si,1,new TGeoTranslation(0., 0., 0.));
- top->AddNode(voitsL0cu,1,new TGeoTranslation(0., 0., 0.));
- //----------------------------------------------------------------------------------//
- */
-
-
- //--------------- Cylindrical beam pipe -------------
-
+ // from https://twiki.cern.ch/twiki/pub/ALICE/MinutesMecanicsIntegration/Minutes_MFT_meeting_BeamPipe_2013_05_13.pdf
+ //------------------------------------------------ Pipe version 4.6 june 2013 -------------------------------------
+
+ Float_t fBellowLength = 3.72;
+ Float_t fFirstConeLength = 1.3;
+ Float_t fCylinderBeforeAfterBellowsLength = 1.34;
+ Float_t fDistanceBetweenBellows = 4.08;
+ Float_t fAluSmallDiamLength = 15.53 + 2.0;
+ Float_t fBellowSectionOuterRadius = 2.15;
+ Float_t fBellowOuterRadius = 3.0;
+
+
+ Float_t fztube1=fZ2; // z of Be - Al jonction on the C-side
+ Float_t fztube2=fZ2-fAluSmallDiamLength; // z of end of small diameter part (beginning of first cone before the bellow
+ Float_t fztube3=fztube2+(-fFirstConeLength); // z of end of conical section
+ Float_t fztube4=fztube3+(-fCylinderBeforeAfterBellowsLength-fBellowLength);
+ Float_t fztube5=fztube4+(-fDistanceBetweenBellows-fBellowLength);
+ Float_t fzadapt=fztube5+(-fCylinderBeforeAfterBellowsLength);
+
+ //---------------- Be pipe around the IP ----------
TGeoPcon* tube0 = new TGeoPcon(0., 360., 2);
tube0->DefineSection(0,fZ1,fRmax-fBe,fRmax);
tube0->DefineSection(1,fZ2,fRmax-fBe,fRmax);
votube0->SetLineColor(kRed);
top->AddNode(votube0,1,new TGeoTranslation(0., 0., 0.));
- // -------------- Vaccum ----------------
TGeoPcon* tube0vide = new TGeoPcon(0., 360., 2);
tube0vide->DefineSection(0,fZ1, 0.,fRmax-fBe);
tube0vide->DefineSection(1,fZ2, 0.,fRmax-fBe);
TGeoVolume* votube0vide = new TGeoVolume("votube0vide",tube0vide,kMedVac);
- votube0vide->SetVisibility(0);
+ votube0vide->SetVisibility(0);votube0vide->SetLineColor(kGreen);
top->AddNode(votube0vide,1,new TGeoTranslation(0., 0., 0.));
+ //-------------------------------------------------
- TGeoPcon* tube12vide = new TGeoPcon(0., 360., 2);
- tube12vide->DefineSection(0,fZ2, 0.,fRmax-fBe);
- tube12vide->DefineSection(1,fZ3+9.0, 0.,fRmax-fBe);
- TGeoVolume* votube12vide = new TGeoVolume("votube12vide",tube12vide,kMedVac);
- votube12vide->SetVisibility(0);
- top->AddNode(votube12vide,1,new TGeoTranslation(0., 0., 0.));
-
- TGeoPcon* adaptatorVide = new TGeoPcon(0., 360., 3);
- adaptatorVide->DefineSection(0,fZ3+9.0, 0., fRmax-fBe);
- adaptatorVide->DefineSection(1,fZ3+1.4, 0., 3.0-fBe);
- adaptatorVide->DefineSection(2,fZ3 , 0., 3.0-fBe);
- TGeoVolume* voadaptatorVide = new TGeoVolume("voadaptatorVide",adaptatorVide,kMedVac);
- voadaptatorVide->SetVisibility(0);
- top->AddNode(voadaptatorVide,1,new TGeoTranslation(0., 0., 0.));
- // -------------- End Vaccum ------------
-
- // -------------- Bellows --------------
- Float_t plieradius = (3.8 + (2. * 7 - 2.) * 0.03) / (4. * 7); // radius of bellows "plis"
- Float_t dzbellow1=2.0; // distance between the start of the aluminium beam pipe and the first bellows
- Float_t dzbellow2=2.0; // distance between the 2 bellows
- //--------------------------------------
//---------------- First Al tube ------------------
TGeoPcon* tube1 = new TGeoPcon(0., 360., 2);
- tube1->DefineSection(0,fZ2, fRmax-fBe,fRmax);
- tube1->DefineSection(1,fZ2-dzbellow1+1.5*plieradius, fRmax-fBe,fRmax);
+ tube1->DefineSection(0,fztube1, fRmax-fBe,fRmax);
+ tube1->DefineSection(1,fztube1-fAluSmallDiamLength,fRmax-fBe,fRmax);
TGeoVolume* votube1 = new TGeoVolume("votube1",tube1,kMedAlu2219);
votube1->SetLineColor(kBlue);
top->AddNode(votube1,1,new TGeoTranslation(0., 0., 0.));
+
+ TGeoPcon* tube1vide = new TGeoPcon(0., 360., 2);
+ tube1vide->DefineSection(0,fZ2, 0.,fRmax-fBe);
+ tube1vide->DefineSection(1,fZ2-fAluSmallDiamLength, 0.,fRmax-fBe);
+ TGeoVolume* votube1vide = new TGeoVolume("votube1vide",tube1vide,kMedVac);
+ votube1vide->SetVisibility(0);votube1vide->SetLineColor(kGreen);
+ top->AddNode(votube1vide,1,new TGeoTranslation(0., 0., 0.));
//-------------------------------------------------
- // ------------------ Bellows 1 -----------------------
- TGeoVolume* vobellows1 = MakeBellow("bellows1", 7, 2.0, 2.665, 3.8, plieradius ,0.03);
- top->AddNode(vobellows1, 1, new TGeoTranslation(0., 0., fZ2-dzbellow1-(3.8)/2.));
- //------------------------------------------------------
-
- //------------- Second Al tube --------------
+
+ //----------- Conical Al tube before bellows ----------
TGeoPcon* tube2 = new TGeoPcon(0., 360., 2);
- tube2->DefineSection(0,fZ2-dzbellow1-3.8, fRmax-fBe,fRmax);
- tube2->DefineSection(1,fZ2-dzbellow1-3.8-dzbellow2+1.5*plieradius, fRmax-fBe,fRmax);
+ tube2->DefineSection(0,fztube2, fRmax-fBe,fRmax);
+ tube2->DefineSection(1,fztube2-fFirstConeLength,fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
TGeoVolume* votube2 = new TGeoVolume("votube2",tube2,kMedAlu2219);
votube2->SetLineColor(kBlue);
top->AddNode(votube2,1,new TGeoTranslation(0., 0., 0.));
- //-------------------------------------------
- // ------------------ Bellows 2 -----------------------
- TGeoVolume* vobellows2 = MakeBellow("bellows2", 7, 2.0, 2.665, 3.8, plieradius ,0.03);
- top->AddNode(vobellows2, 1, new TGeoTranslation(0., 0., fZ2-dzbellow1-3.8-dzbellow2-3.8/2.));
- //-----------------------------------------------------
+ TGeoPcon* tube2vide = new TGeoPcon(0., 360., 2);
+ tube2vide->DefineSection(0,fztube2, 0., fRmax-fBe);
+ tube2vide->DefineSection(1,fztube2-fFirstConeLength, 0., fBellowSectionOuterRadius-fBe);
+ TGeoVolume* votube2vide = new TGeoVolume("votube2vide",tube2vide,kMedVac);
+ votube2vide->SetVisibility(0);votube2vide->SetLineColor(kGreen);
+ top->AddNode(votube2vide,1,new TGeoTranslation(0., 0., 0.));
+ //-------------------------------------------------
- //------------- Conical adaptator -------------
- TGeoPcon* adaptator = new TGeoPcon(0., 360., 6);
- adaptator->DefineSection(0,fZ2-dzbellow1-3.8-dzbellow2-3.8, fRmax-fBe,fRmax);
- adaptator->DefineSection(1,fZ3+9.0, fRmax-fBe ,fRmax);
- adaptator->DefineSection(2,fZ3+9.0, fRmax-fBe, fRmax);
- adaptator->DefineSection(3,fZ3+1.4, 3.0-fBe ,3.0);
- adaptator->DefineSection(4,fZ3+1.4, 3.0-fBe ,3.0);
- adaptator->DefineSection(5,fZ3, 3.0-fBe ,3.0);
+
+ //---------- Al tube before first bellow ----------
+ TGeoPcon* tube3 = new TGeoPcon(0., 360., 2);
+ tube3->DefineSection(0,fztube3, fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
+ tube3->DefineSection(1,fztube3-fCylinderBeforeAfterBellowsLength,fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
+ TGeoVolume* votube3 = new TGeoVolume("votube3",tube3,kMedAlu2219);
+ votube3->SetLineColor(kBlue);
+ top->AddNode(votube3,1,new TGeoTranslation(0., 0., 0.));
+ //-------------------------------------------------
+ //---------- Al tube between the bellows ----------
+ TGeoPcon* tube4 = new TGeoPcon(0., 360., 2);
+ tube4->DefineSection(0,fztube4, fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
+ tube4->DefineSection(1,fztube4-fDistanceBetweenBellows,fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
+ TGeoVolume* votube4 = new TGeoVolume("votube4",tube4,kMedAlu2219);
+ votube4->SetLineColor(kBlue);
+ top->AddNode(votube4,1,new TGeoTranslation(0., 0., 0.));
+ //-------------------------------------------------
+ //-------- Al tube after the second bellow --------
+ TGeoPcon* tube5 = new TGeoPcon(0., 360., 2);
+ tube5->DefineSection(0,fztube5, fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
+ tube5->DefineSection(1,fztube5-fCylinderBeforeAfterBellowsLength,fBellowSectionOuterRadius-fBe,fBellowSectionOuterRadius);
+ TGeoVolume* votube5 = new TGeoVolume("votube5",tube5,kMedAlu2219);
+ votube5->SetLineColor(kBlue);
+ top->AddNode(votube5,1,new TGeoTranslation(0., 0., 0.));
+ //-------------------------------------------------
+ //---- One empty tube inside tube3, tube4, tube5 and bellows -----
+ TGeoPcon* tube345vide = new TGeoPcon(0., 360., 2);
+ tube345vide->DefineSection(0,fztube3, 0., fBellowSectionOuterRadius-fBe);
+ tube345vide->DefineSection(1,fztube5-fCylinderBeforeAfterBellowsLength, 0., fBellowSectionOuterRadius-fBe);
+ TGeoVolume* votube345vide = new TGeoVolume("votube345vide",tube345vide,kMedVac);
+ votube345vide->SetVisibility(0);votube345vide->SetLineColor(kGreen);
+ top->AddNode(votube345vide,1,new TGeoTranslation(0., 0., 0.));
+ //----------------------------------------------------------------
+
+
+ //----------- 15?? Conical adaptator + flange ----------
+ TGeoPcon* adaptator = new TGeoPcon(0., 360., 4);
+ adaptator->DefineSection(0,fzadapt, fBellowSectionOuterRadius-fBe, fBellowSectionOuterRadius);
+ adaptator->DefineSection(1,fzadapt+(-3.17), 3.0-fBe, 3.0);
+ adaptator->DefineSection(2,fzadapt+(-3.17), 3.0-fBe, 4.3);
+ adaptator->DefineSection(3,fzadapt+(-3.17-1.4), 3.0-fBe ,4.3);
TGeoVolume* voadaptator = new TGeoVolume("voadaptator",adaptator,kMedAlu2219);
voadaptator->SetLineColor(kBlue);
top->AddNode(voadaptator,1,new TGeoTranslation(0., 0., 0.));
- //---------------------------------------------
- TGeoPcon* flange = new TGeoPcon(0., 360., 2);
- flange->DefineSection(0,fZ3+1.4, 3.0, 4.3);
- flange->DefineSection(1,fZ3+0.3, 3.0, 4.3);
- TGeoVolume* voflange = new TGeoVolume("voflange",flange,kMedAlu2219);
- voflange->SetLineColor(kBlue+3);
- top->AddNode(voflange,1,new TGeoTranslation(0., 0., 0.));
+ TGeoPcon* adaptatorvide = new TGeoPcon(0., 360., 4);
+ adaptatorvide->DefineSection(0,fzadapt, 0., 2.15-fBe);
+ adaptatorvide->DefineSection(1,fzadapt+(-3.17), 0., 3.0-fBe);
+ adaptatorvide->DefineSection(2,fzadapt+(-3.17), 0., 3.0-fBe);
+ adaptatorvide->DefineSection(3,fzadapt+(-3.17-1.4), 0., 3.0-fBe);
+ TGeoVolume* voadaptatorvide = new TGeoVolume("voadaptatorvide",adaptatorvide,kMedVac);
+ voadaptatorvide->SetVisibility(0);voadaptatorvide->SetLineColor(kGreen);
+ top->AddNode(voadaptatorvide,1,new TGeoTranslation(0., 0., 0.));
+ //------------------------------------------------------
+
- // ------------- Inox ring --------------------
- TGeoPcon* ring = new TGeoPcon(0., 360., 2);
- ring->DefineSection(0,fZ3+0.3,3.0, 4.3);
- ring->DefineSection(1,fZ3, 3.0, 4.3);
- TGeoVolume* voring = new TGeoVolume("voring",ring,kMedSteel);
- voring->SetLineColor(kYellow);
- top->AddNode(voring,1,new TGeoTranslation(0., 0., 0.));
- //---------------------------------------------
+ // ------------------------- Bellows ----------------------------
- /////////////////////////// END NEW BEAM PIPE GEOMETRY /////////////////////////////
+ //Float_t plieradius = (3.72 + (2. * 7 - 2.) * 0.03) / (4. * 7); // radius of bellows "plis"
+ Float_t plieradius = 0.17; // radius of bellow plies
+
+
+ // ------------------ First Bellow --------------------
+ TGeoVolume* vobellows1 = MakeBellowCside("bellows1", 6, fBellowSectionOuterRadius-fBe, fBellowOuterRadius, fBellowLength, plieradius ,0.03);
+ top->AddNode(vobellows1, 1, new TGeoTranslation(0., 0., fztube3+(-fCylinderBeforeAfterBellowsLength-fBellowLength/2.-2.*plieradius)));
+ //------------------------------------------------------
+
+ // ------------------ Second Bellow --------------------
+ TGeoVolume* vobellows2 = MakeBellowCside("bellows2", 6, fBellowSectionOuterRadius-fBe, fBellowOuterRadius, fBellowLength, plieradius ,0.03);
+ top->AddNode(vobellows2, 1, new TGeoTranslation(0., 0., fztube4+(-fDistanceBetweenBellows-fBellowLength/2. -2.*plieradius)));
+ //-----------------------------------------------------
+
+
+
+ ///////////////////////////////////
+ // Beam Pipe support //
+ // version 4.6 //
+ ///////////////////////////////////
+
+ TGeoBBox * carbonSkinVert = new TGeoBBox(13.375/2.,0.45/2.,0.05/2.);
+
+
+
+ ///////////// END NEW BEAM PIPE GEOMETRY fOR MFT ////////////////////
/*
-
//
///////////////////
// CP/2 //
// dPlie Plie thickness
const TGeoMedium* kMedVac = gGeoManager->GetMedium("PIPE_VACUUM");
//const TGeoMedium* kMedSteel = gGeoManager->GetMedium("PIPE_INOX");
- const TGeoMedium* kMedAlu5083 = gGeoManager->GetMedium("PIPE_AA5083"); //FM
+ const TGeoMedium* kMedAlu5083 = gGeoManager->GetMedium("PIPE_AA5083"); //fm
char name[64], nameA[64], nameB[64], bools[64];
snprintf(name, 64, "%sBellowUS", ext);
TGeoCompositeShape* shUpperPlie = new TGeoCompositeShape(name, bools);
TGeoVolume* voWiggleU = new TGeoVolume(name, shUpperPlie, kMedAlu5083);
- voWiggleU->SetLineColor(kOrange+3); //FM
- //
+ voWiggleU->SetLineColor(kOrange); // fm
+
// Lower part of the undulation
TGeoTorus* shPlieTorusL = new TGeoTorus(rMin + rPlie, rPlie - dPlie, rPlie);
snprintf(nameA, 64, "%sTorusL", ext);
TGeoCompositeShape* shLowerPlie = new TGeoCompositeShape(name, bools);
TGeoVolume* voWiggleL = new TGeoVolume(name, shLowerPlie, kMedAlu5083);
- voWiggleL->SetLineColor(kOrange+3); //FM
- //
+ voWiggleL->SetLineColor(kOrange); // fm
+
// Connection between upper and lower part of undulation
snprintf(name, 64, "%sPlieConn1", ext);
TGeoVolume* voWiggleC1 = new TGeoVolume(name, new TGeoTube(rMin + rPlie, rMax - rPlie, dPlie/2.), kMedAlu5083);
- voWiggleC1->SetLineColor(kOrange+3); //FM
- //
+ voWiggleC1->SetLineColor(kOrange); // fm
+
// One wiggle
Float_t dz = rPlie - dPlie / 2.;
Float_t z0 = - dPlie / 2.;
asWiggle->AddNode(voWiggleL , 1 , new TGeoTranslation(0., 0., z0));
// Positioning of the volumes
z0 = - dU / 2.+ rPlie;
- voBellow->AddNode(voWiggleL, 2, new TGeoTranslation(0., 0., z0));
+ ////////////voBellow->AddNode(voWiggleL, 2, new TGeoTranslation(0., 0., z0)); removing the first 1/2 plie, fm
z0 += rPlie;
Float_t zsh = 4. * rPlie - 2. * dPlie;
for (Int_t iw = 0; iw < nc; iw++) {
return voBellow;
}
+TGeoVolume* AliPIPEv4::MakeBellowCside(const char* ext, Int_t nc, Float_t rMin, Float_t rMax, Float_t dU, Float_t rPlie, Float_t dPlie)
+{
+ // nc Number of convolution
+ // rMin Inner radius of the bellow
+ // rMax Outer radius of the bellow
+ // dU Undulation length
+ // rPlie Plie radius
+ // dPlie Plie thickness
+ const TGeoMedium* kMedVac = gGeoManager->GetMedium("PIPE_VACUUM");
+ //const TGeoMedium* kMedSteel = gGeoManager->GetMedium("PIPE_INOX");
+ const TGeoMedium* kMedAlu5083 = gGeoManager->GetMedium("PIPE_AA5083"); //fm
+
+ char name[64], nameA[64], nameB[64], bools[64];
+ snprintf(name, 64, "%sBellowUS", ext);
+ TGeoVolume* voBellow = new TGeoVolume(name, new TGeoTube(rMin, rMax, dU/2.), kMedVac);
+ //
+ // Upper part of the undulation
+ //
+ TGeoTorus* shPlieTorusU = new TGeoTorus(rMax - rPlie, rPlie - dPlie, rPlie);
+ snprintf(nameA, 64, "%sTorusU", ext);
+ shPlieTorusU->SetName(nameA);
+ TGeoTube* shPlieTubeU = new TGeoTube (rMax - rPlie, rMax, rPlie);
+ snprintf(nameB, 64, "%sTubeU", ext);
+ shPlieTubeU->SetName(nameB);
+ snprintf(name, 64, "%sUpperPlie", ext);
+ snprintf(bools, 64, "%s*%s", nameA, nameB);
+ TGeoCompositeShape* shUpperPlie = new TGeoCompositeShape(name, bools);
+
+ TGeoVolume* voWiggleU = new TGeoVolume(name, shUpperPlie, kMedAlu5083);
+ voWiggleU->SetLineColor(kOrange); // fm
+
+ // First Lower part of the undulation
+ TGeoTorus* shPlieTorusL = new TGeoTorus(rMin + rPlie, rPlie - dPlie, rPlie);
+ snprintf(nameA, 64, "%sTorusL", ext);
+ shPlieTorusL->SetName(nameA);
+ TGeoTranslation *t1 = new TGeoTranslation("t1",0,0,-rPlie/2.);
+ t1->RegisterYourself();
+
+ TGeoTube* shPlieTubeL = new TGeoTube (rMin, rMin + rPlie, rPlie/2.);
+ snprintf(nameB, 64, "%sTubeL", ext);
+ shPlieTubeL->SetName(nameB);
+ snprintf(name, 64, "%sLowerPlie", ext);
+ snprintf(bools, 64, "%s*%s:t1", nameA, nameB);
+ TGeoCompositeShape* shLowerPlie1 = new TGeoCompositeShape(name, bools);
+
+ TGeoVolume* voWiggleL1 = new TGeoVolume(name, shLowerPlie1, kMedAlu5083);
+ voWiggleL1->SetLineColor(kOrange); // fm
+
+ // Second Lower part of the undulation
+ TGeoTranslation *t2 = new TGeoTranslation("t2",0,0,rPlie/2.);
+ t2->RegisterYourself();
+
+ snprintf(bools, 64, "%s*%s:t2", nameA, nameB);
+ TGeoCompositeShape* shLowerPlie2 = new TGeoCompositeShape(name, bools);
+
+ TGeoVolume* voWiggleL2 = new TGeoVolume(name, shLowerPlie2, kMedAlu5083);
+ voWiggleL2->SetLineColor(kOrange); // fm
+
+ // Connection between upper and lower part of undulation
+ snprintf(name, 64, "%sPlieConn1", ext);
+ TGeoVolume* voWiggleC1 = new TGeoVolume(name, new TGeoTube(rMin + rPlie, rMax - rPlie, dPlie/2.), kMedAlu5083);
+ voWiggleC1->SetLineColor(kOrange); // fm
+
+ // One wiggle
+ Float_t dz = rPlie - dPlie / 2.;
+ Float_t z0 = 2.*rPlie;
+ snprintf(name, 64, "%sWiggle", ext);
+ TGeoVolumeAssembly* asWiggle = new TGeoVolumeAssembly(name);
+
+ asWiggle->AddNode(voWiggleL1 , 1 , new TGeoTranslation(0., 0., z0));
+ z0 -= dz;
+ asWiggle->AddNode(voWiggleC1, 1 , new TGeoTranslation(0., 0., z0));
+ z0 -= dz;
+ asWiggle->AddNode(voWiggleU, 1 , new TGeoTranslation(0., 0., z0));
+ z0 -= dz;
+ asWiggle->AddNode(voWiggleC1, 2 , new TGeoTranslation(0., 0., z0));
+ z0 -= dz;
+ asWiggle->AddNode(voWiggleL2 , 1 , new TGeoTranslation(0., 0., z0));
+ // Positioning of the volumes
+ z0 = + dU / 2.;
+ Float_t zsh = 4. * dz;
+ for (Int_t iw = 0; iw < nc; iw++) {
+ Float_t zpos = z0 - iw * zsh;
+ voBellow->AddNode(asWiggle, iw + 1, new TGeoTranslation(0., 0., zpos));
+
+ }
+ return voBellow;
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff