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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 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
f45c4ddb | 18 | Revision 1.8 1999/09/29 09:24:23 fca |
19 | Introduction of the Copyright and cvs Log | |
20 | ||
4c039060 | 21 | */ |
22 | ||
fe4da5cc | 23 | ///////////////////////////////////////////////////////// |
24 | // Manager and hits classes for set:PHOS version 0 // | |
25 | ///////////////////////////////////////////////////////// | |
26 | ||
27 | // --- ROOT system --- | |
28 | #include "TH1.h" | |
29 | #include "TRandom.h" | |
30 | #include "TFile.h" | |
31 | #include "TTree.h" | |
32 | #include "TBRIK.h" | |
33 | #include "TNode.h" | |
34 | ||
35 | // --- galice header files --- | |
36 | #include "AliPHOSv0.h" | |
37 | #include "AliRun.h" | |
fe4da5cc | 38 | #include "AliMC.h" |
39 | ||
40 | ClassImp(AliPHOSv0) | |
41 | ||
42 | //______________________________________________________________________________ | |
43 | ||
44 | ||
8c933dd7 | 45 | AliPHOSv0::AliPHOSv0() |
fe4da5cc | 46 | { |
47 | fIdSens=0; | |
48 | } | |
49 | ||
50 | //______________________________________________________________________________ | |
51 | ||
52 | AliPHOSv0::AliPHOSv0(const char *name, const char *title) | |
53 | : AliPHOS(name, title) | |
54 | { | |
55 | fIdSens=0; | |
56 | } | |
57 | ||
58 | //___________________________________________ | |
59 | void AliPHOSv0::Init() | |
60 | { | |
cfce8870 | 61 | fIdSens=gMC->VolId("PXTL"); |
fe4da5cc | 62 | } |
63 | ||
64 | //___________________________________________ | |
65 | void AliPHOSv0::CreateGeometry() | |
66 | { | |
67 | // *** DEFINITION OF THE -0.25<y<0.25 TILTED GEOMETRY OF THE PHOS *** | |
68 | // ORIGIN : NICK VAN EIJNDHOVEN | |
69 | ||
fe4da5cc | 70 | Float_t pphi; |
7f8f914c | 71 | Float_t r, dptcb[3], dpair[3], dphos[3], dpucp[3], dpasp[3]; |
fe4da5cc | 72 | Float_t dpxtl[3]; |
73 | Float_t yo; | |
74 | Int_t idrotm[99]; | |
75 | Float_t xp1, yp1, xp2, yp2; | |
76 | ||
ad51aeb0 | 77 | Int_t *idtmed = fIdtmed->GetArray()-699; |
fe4da5cc | 78 | |
79 | // --- Dimensions of PbWO4 crystal --- | |
80 | const Float_t XTL_X=2.2; | |
81 | const Float_t XTL_Y=18.; | |
82 | const Float_t XTL_Z=2.2; | |
83 | // --- Tyvek wrapper thickness | |
84 | const Float_t PAP_THICK=0.01; | |
fe4da5cc | 85 | // --- Polystyrene Foam Outer Cover dimensions --- |
86 | const Float_t FOC_X=214.6; | |
87 | const Float_t FOC_Y=80.; | |
88 | const Float_t FOC_Z=260.; | |
89 | // --- Inner AIR volume dimensions --- | |
90 | const Float_t AIR_X=206.; | |
91 | const Float_t AIR_Y=66.; | |
92 | const Float_t AIR_Z=244.; | |
93 | // --- Tyvek Crystal Block dimensions --- | |
94 | const Float_t TCB_X=198.; | |
95 | const Float_t TCB_Y=25.; | |
96 | const Float_t TCB_Z=234.; | |
97 | // --- Upper Cooling Plate thickness --- | |
98 | const Float_t UCP_Y=0.06; | |
99 | // --- Al Support Plate thickness --- | |
100 | const Float_t ASP_Y=10.; | |
101 | //--- Distance from IP to Foam Outer Cover top plate (needs to be 447.) --- | |
102 | const Float_t FOC_R=467.; | |
103 | //--- Distance from IP to Crystal Block top Surface (needs to be 460.) --- | |
104 | const Float_t CBS_R=480.; | |
105 | ||
106 | // --- Dimensions of volumes --- | |
107 | ||
108 | ||
109 | // --- Define PHOS box volume, fill with Polystyrene foam --- | |
110 | dphos[0] = FOC_X/2.; | |
111 | dphos[1] = FOC_Y/2.; | |
112 | dphos[2] = FOC_Z/2.; | |
cfce8870 | 113 | gMC->Gsvolu("PHOS", "BOX ", idtmed[703], dphos, 3); |
fe4da5cc | 114 | |
115 | // --- Define air-filled box, place inside PHOS --- | |
116 | dpair[0] = AIR_X/2.; | |
117 | dpair[1] = AIR_Y/2.; | |
118 | dpair[2] = AIR_Z/2.; | |
cfce8870 | 119 | gMC->Gsvolu("PAIR", "BOX ", idtmed[798], dpair, 3); |
120 | gMC->Gspos("PAIR", 1, "PHOS", 0., 0., 0., 0, "ONLY"); | |
fe4da5cc | 121 | |
122 | // --- Define Upper Cooling Panel --- | |
123 | // --- place it right behind upper foam plate --- | |
124 | dpucp[0] = TCB_X/2.; | |
125 | dpucp[1] = UCP_Y/2.; | |
126 | dpucp[2] = TCB_Z/2.; | |
cfce8870 | 127 | gMC->Gsvolu("PUCP", "BOX ", idtmed[701], dpucp, 3); |
fe4da5cc | 128 | yo = (AIR_Y-UCP_Y)/2.; |
cfce8870 | 129 | gMC->Gspos("PUCP", 1, "PAIR", 0., yo, 0., 0, "ONLY"); |
fe4da5cc | 130 | |
131 | // --- Define Crystal Block, fill with Tyvek, position inside PAIR --- | |
132 | dptcb[0] = TCB_X/2.; | |
133 | dptcb[1] = TCB_Y/2.; | |
134 | dptcb[2] = TCB_Z/2.; | |
cfce8870 | 135 | gMC->Gsvolu("PTCB", "BOX ", idtmed[702], dptcb, 3); |
fe4da5cc | 136 | // --- Divide PTCB in X and Z directions -- |
cfce8870 | 137 | gMC->Gsdvn("PSEC", "PTCB", 11, 1); |
138 | gMC->Gsdvn("PMOD", "PSEC", 13, 3); | |
139 | gMC->Gsdvn("PSTR", "PMOD", 8, 1); | |
140 | gMC->Gsdvn("PCEL", "PSTR", 8, 3); | |
fe4da5cc | 141 | yo = (FOC_Y-TCB_Y)/2. -(CBS_R-FOC_R); |
cfce8870 | 142 | gMC->Gspos("PTCB", 1, "PAIR", 0., yo, 0., 0, "ONLY"); |
fe4da5cc | 143 | |
144 | // --- Define PbWO4 crystal volume, place inside PCEL --- | |
145 | dpxtl[0] = XTL_X/2.; | |
146 | dpxtl[1] = XTL_Y/2.; | |
147 | dpxtl[2] = XTL_Z/2.; | |
cfce8870 | 148 | gMC->Gsvolu("PXTL", "BOX ", idtmed[699], dpxtl, 3); |
fe4da5cc | 149 | yo = (TCB_Y-XTL_Y)/2. - PAP_THICK; |
cfce8870 | 150 | gMC->Gspos("PXTL", 1, "PCEL", 0., yo, 0., 0, "ONLY"); |
fe4da5cc | 151 | |
152 | // --- Define Al Support Plate, position it inside PAIR --- | |
153 | // --- right beneath PTCB --- | |
154 | dpasp[0] = AIR_X/2.; | |
155 | dpasp[1] = ASP_Y/2.; | |
156 | dpasp[2] = AIR_Z/2.; | |
cfce8870 | 157 | gMC->Gsvolu("PASP", "BOX ", idtmed[701], dpasp, 3); |
fe4da5cc | 158 | yo = (FOC_Y-ASP_Y)/2. - (CBS_R-FOC_R+TCB_Y); |
cfce8870 | 159 | gMC->Gspos("PASP", 1, "PAIR", 0., yo, 0., 0, "ONLY"); |
fe4da5cc | 160 | |
fe4da5cc | 161 | // --- Divide in X and Z direction (same way as PTCB) --- |
f45c4ddb | 162 | // gMC->Gsdvn("PCMO", "PCSE", 13, 3); |
cfce8870 | 163 | gMC->Gsdvn("PCST", "PCMO", 8, 1); |
164 | gMC->Gsdvn("PCCE", "PCST", 8, 3); | |
fe4da5cc | 165 | |
166 | // --- Position various PHOS units in ALICE setup --- | |
167 | // --- PHOS itself first --- | |
168 | r = FOC_R+FOC_Y/2.; | |
169 | pphi = TMath::ATan(FOC_X/(2.*FOC_R)); | |
170 | xp1 = -r * TMath::Sin(pphi * 3.); | |
171 | yp1 = -r * TMath::Cos(pphi * 3.); | |
172 | xp2 = -r * TMath::Sin(pphi); | |
173 | yp2 = -r * TMath::Cos(pphi); | |
bc9ab547 | 174 | pphi *= 180/kPI; |
fe4da5cc | 175 | AliMatrix(idrotm[0], 90.,-3*pphi, 90., 90-3*pphi, 0., 0.); |
176 | AliMatrix(idrotm[1], 90., -pphi, 90., 90-pphi, 0., 0.); | |
177 | AliMatrix(idrotm[2], 90., pphi, 90., 90+pphi, 0., 0.); | |
178 | AliMatrix(idrotm[3], 90., 3*pphi, 90., 90+3*pphi, 0., 0.); | |
cfce8870 | 179 | gMC->Gspos("PHOS", 1, "ALIC", xp1, yp1, 0., idrotm[0], "ONLY"); |
180 | gMC->Gspos("PHOS", 2, "ALIC", xp2, yp2, 0., idrotm[1], "ONLY"); | |
181 | gMC->Gspos("PHOS", 3, "ALIC",-xp2, yp2, 0., idrotm[2], "ONLY"); | |
182 | gMC->Gspos("PHOS", 4, "ALIC",-xp1, yp1, 0., idrotm[3], "ONLY"); | |
fe4da5cc | 183 | |
fe4da5cc | 184 | // --- Set modules seen without tree for drawings --- |
cfce8870 | 185 | gMC->Gsatt("PMOD", "SEEN", -2); |
186 | gMC->Gsatt("PCMO", "SEEN", -2); | |
fe4da5cc | 187 | } |
188 | ||
189 | //___________________________________________ | |
190 | void AliPHOSv0::CreateMaterials() | |
191 | { | |
192 | // *** DEFINITION OF AVAILABLE PHOS MATERIALS *** | |
193 | // ORIGIN : NICK VAN EIJNDHOVEN | |
194 | ||
fe4da5cc | 195 | Int_t ISXFLD = gAlice->Field()->Integ(); |
196 | Float_t SXMGMX = gAlice->Field()->Max(); | |
197 | ||
198 | // --- The PbWO4 crystals --- | |
199 | Float_t ax[3] = { 207.19,183.85,16. }; | |
200 | Float_t zx[3] = { 82.,74.,8. }; | |
201 | Float_t wx[3] = { 1.,1.,4. }; | |
202 | Float_t dx = 8.28; | |
203 | // --- The polysterene scintillator (CH) --- | |
204 | Float_t ap[2] = { 12.011,1.00794 }; | |
205 | Float_t zp[2] = { 6.,1. }; | |
206 | Float_t wp[2] = { 1.,1. }; | |
207 | Float_t dp = 1.032; | |
208 | // --- Tyvek (CnH2n) | |
209 | Float_t at[2] = { 12.011,1.00794 }; | |
210 | Float_t zt[2] = { 6.,1. }; | |
211 | Float_t wt[2] = { 1.,2. }; | |
212 | Float_t dt = .331; | |
213 | // --- Polystyrene foam --- | |
214 | Float_t af[2] = { 12.011,1.00794 }; | |
215 | Float_t zf[2] = { 6.,1. }; | |
216 | Float_t wf[2] = { 1.,1. }; | |
217 | Float_t df = .3; | |
218 | ||
ad51aeb0 | 219 | Int_t *idtmed = fIdtmed->GetArray()-699; |
fe4da5cc | 220 | |
221 | AliMixture( 0, "PbWO4$", ax, zx, dx, -3, wx); | |
222 | AliMixture( 1, "Polystyrene$", ap, zp, dp, -2, wp); | |
223 | AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999.); | |
224 | // --- Absorption length^ is ignored --- | |
225 | AliMixture( 3, "Tyvek$", at, zt, dt, -2, wt); | |
226 | AliMixture( 4, "Foam$", af, zf, df, -2, wf); | |
227 | AliMaterial(9, "Air$", 14.61, 7.3, .001205, 30420., 67500); | |
228 | ||
ad51aeb0 | 229 | AliMedium(0, "PHOS Xtal $", 0, 1, ISXFLD, SXMGMX, 10., .1, .1, .1, .1); |
ad51aeb0 | 230 | AliMedium(2, "Al parts $", 2, 0, ISXFLD, SXMGMX, 10., .1, .1, .001, .001); |
231 | AliMedium(3, "Tyvek wrapper$", 3, 0, ISXFLD, SXMGMX, 10., .1, .1, .001, .001); | |
232 | AliMedium(4, "Polyst. foam $", 4, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1); | |
233 | AliMedium(99, "Air $", 9, 0, ISXFLD, SXMGMX, 10., 1., .1, .1, 10.); | |
fe4da5cc | 234 | |
235 | // --- Generate explicitly delta rays in aluminium parts --- | |
cfce8870 | 236 | gMC->Gstpar(idtmed[701], "LOSS", 3.); |
237 | gMC->Gstpar(idtmed[701], "DRAY", 1.); | |
fe4da5cc | 238 | } |
239 | ||
240 | void AliPHOSv0::StepManager() | |
241 | { | |
242 | ||
fe4da5cc | 243 | TClonesArray &lhits = *fHits; |
0a6d8768 | 244 | TLorentzVector p; |
fe4da5cc | 245 | Int_t copy, i; |
246 | Int_t vol[5]; | |
247 | Float_t hits[4]; | |
0a6d8768 | 248 | if(gMC->CurrentVolID(copy) == fIdSens) { |
fe4da5cc | 249 | // |
250 | //We are in the sensitive volume | |
251 | for(i=0;i<4;i++) { | |
0a6d8768 | 252 | gMC->CurrentVolOffID(i+1,copy); |
fe4da5cc | 253 | vol[4-i]=copy; |
254 | } | |
0a6d8768 | 255 | gMC->CurrentVolOffID(7,copy); |
fe4da5cc | 256 | vol[0]=copy; |
0a6d8768 | 257 | gMC->TrackPosition(p); |
258 | for(i=0;i<3;++i) hits[i]=p[i]; | |
cfce8870 | 259 | hits[3]=gMC->Edep(); |
fe4da5cc | 260 | new(lhits[fNhits++]) AliPHOShit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
261 | } | |
262 | } |