Added histograms in MUONmassPlot.C and simplified running procedure.
[u/mrichter/AliRoot.git] / FMD / AliFMDv1.cxx
CommitLineData
4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
b9a2d5e4 15 /////////////////////////////////////////////////////////////////////
16// //
17// Forward Multiplicity detector based on Silicon version 0 //
18//
19//Begin Html
fe4da5cc 20/*
b9a2d5e4 21<img src="gif/AliFMDv0Class.gif">
fe4da5cc 22*/
b9a2d5e4 23//End Html
24// //
25// //
26//////////////////////////////////////////////////////////////////////
27
28#include <TMath.h>
29#include <TGeometry.h>
30#include <TTUBE.h>
31#include <TFile.h>
32#include <TTree.h>
33#include <TNode.h>
34#include <TClonesArray.h>
35#include <TLorentzVector.h>
36#include <TDirectory.h>
fe4da5cc 37#include "AliFMDv1.h"
37c55dc0 38#include "AliFMDv0.h"
b9a2d5e4 39#include "AliRun.h"
fe4da5cc 40#include "AliMC.h"
b9a2d5e4 41#include <iostream.h>
42#include <fstream.h>
94de3818 43#include "AliMagF.h"
b9a2d5e4 44#include "AliFMDhit.h"
45#include "AliFMDdigit.h"
f707b5c1 46#include <stdlib.h>
b9a2d5e4 47//#include "TGeant3.h"
48//class TGeant3;
fe4da5cc 49ClassImp(AliFMDv1)
b9a2d5e4 50
51//--------------------------------------------------------------------
52AliFMDv1::AliFMDv1(const char *name, const char *title):
53 AliFMD(name,title)
fe4da5cc 54{
55 //
b9a2d5e4 56 // Standart constructor for Forward Multiplicity Detector version 0
fe4da5cc 57 //
b9a2d5e4 58 fIdSens1=0;
37c55dc0 59 fIdSens2=0;
60 fIdSens3=0;
61 fIdSens4=0;
62 fIdSens5=0;
b9a2d5e4 63// setBufferSize(128000);
fe4da5cc 64}
b9a2d5e4 65//-------------------------------------------------------------------------
fe4da5cc 66void AliFMDv1::CreateGeometry()
67{
b9a2d5e4 68 //
69 // Create the geometry of Forward Multiplicity Detector version 0
fe4da5cc 70 //
b9a2d5e4 71 //Detector consists of 6 volumes:
72 // 1st covered pseudorapidity interval from 3.3 to 2.0
73 // and placed on 65cm in Z-direction;
74 // 2nd - from 2.0 to 1.6 and Z=85 cm;
75 // 3d - the same pseudorapidity interval as the 1st
76 // but on the other side from the interaction point z=-65cm;
77 // 4th - simmetricaly with the 2nd :
78 // pseudorapidity from 2.0 to 1.6, Z=-85cm
79 // 5th - from 3.6 to 4.7, Z=-270cm
80 // 6th - from 4.5 to 5.5 , Z=-630cm.
81 // Each part has 400mkm Si (sensetive area, detector itself),
82 // 0.75cm of plastic simulated electronics material,
83 // Al support ring 2cm thickness and 1cm width placed on
84 // the outer radius of each Si disk;
85 //
86 // begin Html
fe4da5cc 87 /*
b9a2d5e4 88 <img src="gif/AliFMDv0.gif">
89 */
90 //
0d630091 91
37c55dc0 92
b9a2d5e4 93 Int_t *idtmed = fIdtmed->GetArray();
94
95 Int_t ifmd;
96 Int_t idrotm[999];
97 Float_t zfmd,par[3];
37c55dc0 98 char name[5], nameSi[5], nameSector[5], nameRing[5];
b9a2d5e4 99
100 Float_t rin[6], rout[6],zpos;
37c55dc0 101
102 Float_t etain[5]= {3.58, 1.94, 3.58, 1.94, 5.28};
103 Float_t etaout[6]={2.03, 1.51, 2.03, 1.51, 3.71};
dc8af42e 104 // Float_t z[6]={64., 85., -64., -85., -270., -630};
37c55dc0 105 Float_t z[6]={62.8, 75.2, -62.8, -75.2, -345.};
106 Float_t zDet=0.03;
107 Float_t zElectronic=0.1;
b9a2d5e4 108 Float_t zSupport=1.;
37c55dc0 109
110 Float_t zFMD=1.;
b9a2d5e4 111//-------------------------------------------------------------------
112 // FMD
113 //------------------------------------------------------------------
114
115 AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
116
37c55dc0 117 // gMC->Gsvolu("GSI","TUBE", idtmed[1], par, 0);
b9a2d5e4 118 gMC->Gsvolu("GEL ","TUBE", idtmed[4], par, 0);
119 gMC->Gsvolu("GSUP","TUBE", idtmed[2], par, 0);
120
dc8af42e 121 for (ifmd =0; ifmd < 5; ifmd++){
b9a2d5e4 122
37c55dc0 123 sprintf(name,"FMD%d",ifmd+1);
124 sprintf(nameSi,"GSI%d",ifmd+1);
125 sprintf(nameSector,"GSC%d",ifmd+1);
126 sprintf(nameRing,"GRN%d",ifmd+1);
127 printf(name,nameSi);
b9a2d5e4 128
129 zfmd=TMath::Abs(z[ifmd]);
37c55dc0 130 printf("zfmd %f z[ifmd] %f",zfmd,z[ifmd]);
b9a2d5e4 131 AliFMD::Eta2Radius(etain[ifmd],zfmd,&rin[ifmd]);
132 AliFMD::Eta2Radius(etaout[ifmd],zfmd,&rout[ifmd]);
133
134 par[0]=rin[ifmd]; // pipe size
135 par[1]=rout[ifmd];
136 par[2]=zFMD/2;
137 gMC->Gsvolu(name,"TUBE", idtmed[3], par, 3);
37c55dc0 138 // par[2]=zDet/2;
139 gMC->Gsvolu(nameSi,"TUBE", idtmed[1], par, 0);
b9a2d5e4 140
37c55dc0 141 printf ("rin %f rout %f ZFMD %f\n",par[0],par[1],z[ifmd]);
b9a2d5e4 142 if (z[ifmd] < 0){
143 gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],0, "ONLY");}
144 else {
145 gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],idrotm[901], "ONLY");}
146 //Silicon detector
147 par[2]=zDet/2;
148 zpos=zFMD/2 -par[2];
37c55dc0 149 gMC->Gsposp(nameSi,ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
150 cout<<" Si "<<nameSi<<" ifmd "<<ifmd<<" rin "<<par[0]<<" rout "<<par[1]<<
151 " zDet "<<par[2]<<endl;
152 //Granularity
153 cout<<"fSectorsSi1 "<<fSectorsSi1<<
154 " fRingsSi1 "<<fRingsSi1<<
155 " fSectorsSi2 "<<fSectorsSi2<<
156 " fRingsSi2 "<<fRingsSi2<<endl;
157 if(ifmd==1||ifmd==3)
158 {
159 gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2);
160 gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1);
161 }
162 else
163 {
164 gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2);
165 gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1);
166 }
167
b9a2d5e4 168 //Plastic slice for electronics
169 par[2]=zElectronic/2;
170 zpos=zpos-zDet/2-par[2];
171 gMC->Gsposp("GEL ",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
172
173 //Simple Al support
174 par[1]=rout[ifmd];
175 par[0]=rout[ifmd]-2;
176 par[2]=zSupport/2;
177 zpos=zpos-zElectronic/2-par[2];
37c55dc0 178 // gMC->Gsposp("GSUP",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
b9a2d5e4 179
180
181 }
b9a2d5e4 182
183}
37c55dc0 184
b9a2d5e4 185//------------------------------------------------------------------------
186void AliFMDv1::CreateMaterials()
187{
188 Int_t isxfld = gAlice->Field()->Integ();
189 Float_t sxmgmx = gAlice->Field()->Max();
190
191 // Plastic CH
192 Float_t aPlastic[2]={1.01,12.01};
193 Float_t zPlastic[2]={1,6};
194 Float_t wPlastic[2]={1,1};
195 Float_t denPlastic=1.03;
196 //
197
198 //*** Definition Of avaible FMD materials ***
199 AliMaterial(0, "Si chip$", 28.0855,14.,2.33,9.36,999);
200 AliMaterial(1, "Al supprt$", 26.980,13.,2.70,8.9,999);
201 AliMaterial(2, "FMD Air$", 14.61, 7.3, .001205, 30423.,999);
202 AliMixture( 5, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
203
0d630091 204
b9a2d5e4 205//**
206 AliMedium(1, "Si chip$", 0, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
207 AliMedium(2, "Al support$", 1, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
208 AliMedium(3, "FMD air$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
209 AliMedium(4, "Plastic$", 5, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
210
0d630091 211
0d630091 212
fe4da5cc 213}
b9a2d5e4 214//---------------------------------------------------------------------
215void AliFMDv1::DrawDetector()
fe4da5cc 216{
b9a2d5e4 217//
218// Draw a shaded view of the Forward multiplicity detector version 0
219//
220
221AliMC* pMC = AliMC::GetMC();
222
223//Set ALIC mother transparent
224pMC->Gsatt("ALIC","SEEN",0);
225//
226//Set volumes visible
b9a2d5e4 227gMC->Gsatt("FMD1","SEEN",1);
228gMC->Gsatt("FMD2","SEEN",1);
229gMC->Gsatt("FMD3","SEEN",1);
230gMC->Gsatt("FMD4","SEEN",1);
231gMC->Gsatt("FMD5","SEEN",1);
232
233//
234gMC->Gdopt("hide","on");
235gMC->Gdopt("shad","on");
236gMC->SetClipBox(".");
237gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
238gMC->DefaultRange();
239gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
240gMC->Gdhead(1111,"Forward multiplicity detector");
241gMC->Gdopt("hide","off");
242}
243//-------------------------------------------------------------------
244void AliFMDv1::Init()
245{
246// Initialises version 0 of the Forward Multiplicity Detector
247//
37c55dc0 248AliMC* gMC=AliMC::GetMC();
249AliFMD::Init();
250fIdSens1=gMC->VolId("GRN1");
251fIdSens2=gMC->VolId("GRN2");
252fIdSens3=gMC->VolId("GRN3");
253fIdSens4=gMC->VolId("GRN4");
254fIdSens5=gMC->VolId("GRN5");
255printf("*** FMD version 1 initialized ***\n");
fe4da5cc 256}
257
b9a2d5e4 258//-------------------------------------------------------------------
259
260void AliFMDv1::StepManager()
fe4da5cc 261{
262 //
b9a2d5e4 263 // Called for every step in the Forward Multiplicity Detector
fe4da5cc 264 //
b9a2d5e4 265 Int_t id,copy,copy1,copy2;
266 static Float_t hits[9];
267 static Int_t vol[3];
268 static Float_t de;
269 TLorentzVector pos;
270 TLorentzVector mom;
fe4da5cc 271
0d630091 272
b9a2d5e4 273 TClonesArray &lhits = *fHits;
274 AliMC* gMC=AliMC::GetMC();
275 if(!gMC->IsTrackAlive()) return; // particle has disappeared
0d630091 276
b9a2d5e4 277 Float_t charge = gMC->TrackCharge();
278 if(TMath::Abs(charge)<=0.) return; //take only charged particles
279
280 // printf(" in StepManeger \n");
281 id=gMC->CurrentVolID(copy);
37c55dc0 282 //((TGeant3*)gMC)->Gpcxyz();
fe4da5cc 283
b9a2d5e4 284// Check the sensetive volume
37c55dc0 285 if(id==fIdSens1||id==fIdSens2||id==fIdSens3||id==fIdSens4||id==fIdSens5)
b9a2d5e4 286 {
287 if(gMC->IsTrackEntering())
288 {
b9a2d5e4 289 vol[2]=copy;
290 gMC->CurrentVolOffID(1,copy1);
291 vol[1]=copy1;
292 gMC->CurrentVolOffID(2,copy2);
293 vol[0]=copy2;
37c55dc0 294 // printf("vol0 %d vol1 %d vol2 %d\n",vol[0],vol[1],vol[2]);
b9a2d5e4 295 gMC->TrackPosition(pos);
296 hits[0]=pos[0];
297 hits[1]=pos[1];
298 hits[2]=pos[2];
dc8af42e 299 // printf(" Zpos %f \n",hits[2]);
b9a2d5e4 300 gMC->TrackMomentum(mom);
301 hits[3]=mom[0];
302 hits[4]=mom[1];
303 hits[5]=mom[2];
304
305 Int_t iPart= gMC->TrackPid();
306 Int_t partId=gMC->IdFromPDG(iPart);
307 hits[7]=partId;
308 hits[8]=1e9*gMC->TrackTime();
309 de=0.;
b9a2d5e4 310 }
311 if(gMC->IsTrackInside()){
312 de=de+1000.*gMC->Edep();
37c55dc0 313 // cout<<" de "<<de<<endl;
314 // cout<<" step "<<gMC->TrackStep()<<endl;
b9a2d5e4 315 }
316
317 if(gMC->IsTrackExiting()
318 ||gMC->IsTrackDisappeared()||
319 gMC->IsTrackStop())
320 {
321 hits[6]=de+1000.*gMC->Edep();
37c55dc0 322 // cout<<" idSens "<<id<<endl;
323 //cout<<" hits "<<hits[6]<<endl;
324 // for(Int_t i=0; i<9; i++) printf(" i %d hits %f \n",i,hits[i]);
325 new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
b9a2d5e4 326 } // IsTrackExiting()
327 }
328 }
dc8af42e 329//--------------------------------------------------------------------------
330
331void AliFMDv1::Response( Float_t Edep)
332{
333 Float_t I=1.664*0.04*2.33/22400; // = 0.69e-6;
334 Float_t chargeOnly=Edep/I;
335 //Add noise ~500electrons
336 Int_t charge=500;
337 if (Edep>0)
338 charge=Int_t(gRandom->Gaus(chargeOnly,500));
339 }
b9a2d5e4 340
341
342
343
fe4da5cc 344
0d630091 345