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6edc06da | 1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // // | |
3 | // Photon Multiplicity Detector Version 1 // | |
4 | // // | |
5 | //Begin_Html | |
6 | /* | |
1439f98e | 7 | <img src="picts/AliPMDv1Class.gif"> |
6edc06da | 8 | */ |
9 | //End_Html | |
10 | // // | |
11 | /////////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | #include "AliPMDv1.h" | |
14 | #include "AliRun.h" | |
15 | #include "AliMC.h" | |
16 | #include "AliConst.h" | |
17 | ||
18 | static Int_t maxbox, kdet; | |
19 | static Float_t thmin,thmax,zdist,zdist1,thlow,thhigh; | |
20 | ||
21 | ClassImp(AliPMDv1) | |
22 | ||
23 | //_____________________________________________________________________________ | |
24 | AliPMDv1::AliPMDv1() | |
25 | { | |
26 | // | |
27 | // Default constructor | |
28 | // | |
29 | fMedSens=0; | |
30 | } | |
31 | ||
32 | //_____________________________________________________________________________ | |
33 | AliPMDv1::AliPMDv1(const char *name, const char *title) | |
34 | : AliPMD(name,title) | |
35 | { | |
36 | // | |
37 | // Standard constructor | |
38 | // | |
39 | fMedSens=0; | |
40 | } | |
41 | //_____________________________________________________________________________ | |
42 | void AliPMDv1::CreateGeometry() | |
43 | { | |
44 | // | |
45 | // Create geometry for Photon Multiplicity Detector Version 1 | |
46 | // | |
47 | //Begin_Html | |
48 | /* | |
1439f98e | 49 | <img src="picts/AliPMDv1.gif"> |
6edc06da | 50 | */ |
51 | //End_Html | |
52 | //Begin_Html | |
53 | /* | |
1439f98e | 54 | <img src="picts/AliPMDv1Tree.gif"> |
6edc06da | 55 | */ |
56 | //End_Html | |
57 | CreatePads(); | |
58 | CreateInside(); | |
59 | } | |
60 | ||
61 | //_____________________________________________________________________________ | |
62 | void AliPMDv1::CreateInside() | |
63 | { | |
64 | // | |
65 | // Create inside of Pads | |
66 | // | |
67 | // -- Author : Y.P. VIYOGI, 07/05/1996. | |
68 | // -- Modified: P.V.K.S.Baba(JU), 15-12-97. | |
69 | // Sipmd, the dimension of TUBE mother volume of PMD, other dimensions | |
70 | // like sip01.. are to place more tubes in the volume at different eta bins. | |
71 | Float_t sipmd[3] = { 40.,270.,15.}; | |
72 | Float_t sip01[3] = { 10.,57.89,25.}; | |
73 | Float_t sip02[3] = { 10.,64.03,25.}; | |
74 | Float_t sip03[3] = { 10.,70.80,25.}; | |
75 | Float_t sip04[3] = { 10.,78.32,25.}; | |
76 | Float_t sip05[3] = { 10.,86.68,25.}; | |
77 | Float_t sip06[3] = { 10.,95.91,25.}; | |
78 | Float_t sip07[3] = { 10.,106.14,25.}; | |
79 | Float_t sip08[3] = { 10.,117.48,25.}; | |
80 | Float_t sip09[3] = { 10.,130.18,25.}; | |
81 | Float_t sip10[3] = { 10.,144.18,25.}; | |
82 | Float_t sip11[3] = { 10.,159.87,25.}; | |
83 | Float_t sip12[3] = { 10.,177.43,25.}; | |
84 | Float_t sip13[3] = { 10.,197.11,25.}; | |
85 | Float_t sip14[3] = { 10.,219.28,25.}; | |
86 | Float_t sipmdl[5] = { 10.,310.,25.,90.,270. }; | |
87 | Float_t sipmdr[5] = { 10.,310.,25.,270.,90. }; | |
88 | ||
89 | const Float_t root3_4 = sqrt(3)/4.; | |
90 | const Float_t root3_2 = sqrt(3)/2.; | |
91 | // Float_t xiqa[4], yiqa[4]; | |
92 | Int_t i; | |
93 | // Float_t siqad[4]; | |
94 | Float_t xp, yp, zp; | |
95 | // Int_t idrotm[100]; | |
96 | Int_t num_mod; | |
97 | Int_t jhrotc,jhrotac; | |
98 | Int_t jhrotd; | |
99 | // const Float_t delx=78.8; | |
100 | const Float_t delx=76.75; | |
101 | // const Float_t dely=delx*root3_2; | |
102 | // const Float_t delz=1.6/2.; | |
103 | AliMatrix(jhrotc, 90., 30., 90., 120., 0., 0.); | |
104 | AliMatrix(jhrotac, 90., 330., 90., 240., 0., 0.); | |
105 | AliMatrix(jhrotd, 90., 90., 90., 180., 90., 0.); | |
106 | Float_t x1= delx*root3_4; | |
107 | Float_t x2= delx*root3_4 + delx*root3_2; | |
108 | Float_t x3= delx*root3_4 + 2*delx*root3_2; | |
109 | Float_t xpos[13]={-x1,-x1,-x1,-x1,-x2,-x2,-x2,-x2,-x2,-x3,-x3,-x3,-x3}; | |
110 | Float_t x4=delx/4.; | |
111 | Float_t ypos[13]={(-70.-x4-delx),-(70.+x4),(70.+x4),(70.+x4+delx),-x4+2*delx,-x4+delx,-x4,-x4-delx,-x4-2*delx,-3*x4-delx,-x4-delx/2.,-3*x4+delx,-3*x4+2*delx}; | |
112 | // Float_t ypos[13]={(-70.-x4-delx),-(70.+x4),(70.+x4),(70.+x4+delx),(4*dely),(2*dely),0.,-(2*dely),-(4*dely),-3*x4-delx,-x4-delx/2.,-3*x4+delx,-3*x4+2*delx}; | |
ad51aeb0 | 113 | Int_t *idtmed = fIdtmed->GetArray()-599; |
6edc06da | 114 | |
115 | // VOLUMES Names : begining with D for all PMD volumes, | |
116 | // The names of SIZE variables begin with S and have more meaningful | |
117 | // characters as shown below. | |
118 | ||
119 | // VOLUME SIZE MEDIUM : REMARKS | |
120 | // ------ ----- ------ : --------------------------- | |
121 | ||
122 | // DPMD SIPMD AIR : INSIDE PMD and its SIZE | |
123 | ||
124 | ||
125 | ||
126 | // *** Define the DPMD Volume and fill with air *** | |
127 | ||
cfce8870 | 128 | gMC->Gsvolu("DPMD", "TUBE", idtmed[698], sipmd, 3); |
129 | gMC->Gsvolu("PM01", "TUBE", idtmed[698], sip01, 3); | |
130 | gMC->Gsvolu("PM02", "TUBE", idtmed[698], sip02, 3); | |
131 | gMC->Gsvolu("PM03", "TUBE", idtmed[698], sip03, 3); | |
132 | gMC->Gsvolu("PM04", "TUBE", idtmed[698], sip04, 3); | |
133 | gMC->Gsvolu("PM05", "TUBE", idtmed[698], sip05, 3); | |
134 | gMC->Gsvolu("PM06", "TUBE", idtmed[698], sip06, 3); | |
135 | gMC->Gsvolu("PM07", "TUBE", idtmed[698], sip07, 3); | |
136 | gMC->Gsvolu("PM08", "TUBE", idtmed[698], sip08, 3); | |
137 | gMC->Gsvolu("PM09", "TUBE", idtmed[698], sip09, 3); | |
138 | gMC->Gsvolu("PM10", "TUBE", idtmed[698], sip10, 3); | |
139 | gMC->Gsvolu("PM11", "TUBE", idtmed[698], sip11, 3); | |
140 | gMC->Gsvolu("PM12", "TUBE", idtmed[698], sip12, 3); | |
141 | gMC->Gsvolu("PM13", "TUBE", idtmed[698], sip13, 3); | |
142 | gMC->Gsvolu("PM14", "TUBE", idtmed[698], sip14, 3); | |
143 | gMC->Gsvolu("PMDL", "TUBS", idtmed[698], sipmdl, 5); | |
144 | gMC->Gsvolu("PMDR", "TUBS", idtmed[698], sipmdr, 5); | |
6edc06da | 145 | // |
146 | const Int_t npad2=72; | |
147 | Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.53,0.4,0.,0.53}; | |
148 | Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
149 | dpara_sm[0]=(npad2+0.25)*hexd1[6] + 1.2; | |
150 | dpara_sm[1] = dpara_sm[0] *root3_2; | |
151 | Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
152 | dpara_dm11[0]=dpara_sm[0]+.01; | |
153 | dpara_dm11[1] = dpara_dm11[0] *root3_2; | |
154 | dpara_dm11[2]= 6.2/2.; | |
155 | // | |
156 | for (i = 0; i < 2; ++i) { | |
157 | num_mod=i+1; | |
cfce8870 | 158 | gMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6); |
159 | gMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6); | |
6edc06da | 160 | printf("Num_mod %d\n",num_mod); |
161 | } | |
162 | maxbox=13; | |
163 | for (i = 2; i < maxbox; ++i) { | |
164 | num_mod=i+1; | |
cfce8870 | 165 | gMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6); |
166 | gMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6); | |
6edc06da | 167 | printf("Num_mod %d\n",num_mod); |
168 | } | |
cfce8870 | 169 | // gMC->Gspos("PM01", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
170 | // gMC->Gspos("PM02", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
171 | // gMC->Gspos("PM03", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
172 | // gMC->Gspos("PM04", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
173 | // gMC->Gspos("PM05", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
174 | // gMC->Gspos("PM06", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
175 | // gMC->Gspos("PM07", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
176 | // gMC->Gspos("PM08", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
177 | // gMC->Gspos("PM09", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
178 | // gMC->Gspos("PM10", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
179 | // gMC->Gspos("PM11", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
180 | // gMC->Gspos("PM12", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
181 | // gMC->Gspos("PM13", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
182 | // gMC->Gspos("PM14", 1, "DPMD", 0.,0.,0., 0, "ONLY"); | |
6edc06da | 183 | // --- Place the DPMD in ALICE with front edge 5.8m from vertex --- |
184 | xp = 0.; | |
185 | yp = 0.; | |
186 | zp = zdist1; | |
cfce8870 | 187 | // gMC->Gspos("PMDL", 1, "DPMD", xp,yp,0., 0, "ONLY"); |
188 | // gMC->Gspos("PMDR", 1, "DPMD", xp,yp,0., 0, "ONLY"); | |
189 | gMC->Gspos("DPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY"); | |
6edc06da | 190 | |
191 | } | |
192 | ||
193 | //_____________________________________________________________________________ | |
194 | void AliPMDv1::CreatePads() | |
195 | { | |
196 | // | |
197 | // Create the geometry of the pads | |
198 | // *** DEFINITION OF THE GEOMETRY OF THE PMD *** | |
199 | // *** HEXAGONAL PADS WITH 10 MM SQUARE EQUIVALENT | |
200 | // -- Author : S. Chattopadhyay, 02/04/1999. | |
201 | ||
202 | // Basic unit is DP11, a hexagonal cell, which is placed inside another | |
203 | // hexagonal cell (DS11) of larger radius, compared to DP11. The difference in r// adius gives the dimension of half width of each cell wall. | |
204 | // These cells are placed as 72 x 72 array in a | |
205 | // rhombus shaped supermodule (DW11). The rhombus shaped modules are designed | |
206 | // to have closed packed structure. | |
207 | // Each supermodule (SUPR), made of G10 is filled with following components | |
208 | // SMSS --> SS backing, | |
209 | // SMAR --> Gap between gas hexagonal cells and G10 backing. | |
210 | // DW11 --> Ar-Co2 filled gas hexagonal cells. | |
211 | // SMAR | |
212 | // These supermodules are placed inside the main module (DM11), with Fe and | |
213 | // Pb converter positioned between CPV and PMD. | |
214 | // DM11 made of | |
215 | // SUPR (rotated to place steel on the other side), this works as preshower | |
216 | // when PMD is placed in -ve z. | |
217 | // SUPB --> Pb converter | |
218 | // SUFE --> Fe backing | |
219 | // SUPR --> supermodule without rotation (this acts as CPV). | |
220 | // | |
221 | ||
6edc06da | 222 | const Int_t npad2 = 72; |
223 | Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.53,0.4,0.,0.53}; | |
224 | //total wall thickness=0.2*2 | |
225 | Float_t hexd2[10] = {0.,360.,6,2,-0.4,0.,0.51,0.4,0.,0.51}; | |
226 | Int_t i, j; | |
227 | Float_t xb, yb, zb;//, sw[3]; | |
228 | Int_t number; | |
229 | Int_t ihrotm,irotdm; | |
230 | const Float_t root3_cons = sqrt(3) /2.; | |
ad51aeb0 | 231 | Int_t *idtmed = fIdtmed->GetArray()-599; |
6edc06da | 232 | |
233 | AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.); | |
234 | AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.); | |
235 | zdist1 = fIn[2]; | |
236 | zdist = TMath::Abs(zdist1); | |
237 | // | |
238 | Int_t xrow=1; | |
239 | Float_t dpara[6] = {12.5,12.5,0.4,30.,0.,0.}; | |
240 | dpara[0]=(npad2+0.25)*hexd1[6]; | |
241 | dpara[1] = dpara[0] *root3_cons; | |
242 | // | |
243 | //Subhasis, dimensional parameters of rhombus (dpara) as given to gsvolu | |
244 | // rhombus to accomodate 72 x 72 hexagons, and with total 1.2cm extension | |
245 | //(1mm tolerance on both side and 5mm thick G10 wall) | |
246 | // | |
247 | ||
248 | // **** PAD SIZE 10 MM SQUARE EQUIVALENT | |
249 | // | |
250 | // Inner hex filled with gas | |
cfce8870 | 251 | gMC->Gsvolu("DP11", "PGON", idtmed[604], hexd2,10); |
252 | gMC->Gsatt("DP11", "SEEN", 1); | |
6edc06da | 253 | |
254 | // Outer hex filled with Plastic | |
cfce8870 | 255 | //plastic gMC->Gsvolu("DS11", "PGON", idtmed[616], hexd1,10); |
6edc06da | 256 | // Iron |
cfce8870 | 257 | gMC->Gsvolu("DS11", "PGON", idtmed[601], hexd1,10); |
258 | gMC->Gsatt("DS11", "SEEN", 1); | |
6edc06da | 259 | // --- place inner hex inside outer hex |
cfce8870 | 260 | gMC->Gsposp("DP11", 1, "DS11", 0., 0., 0., 0, "ONLY", hexd2, 10); |
6edc06da | 261 | // Rhombus shaped supermodules (defined by PARA) |
262 | // volume for SUPERMODULE | |
263 | Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
264 | dpara_sm[0]=(npad2+0.25)*hexd1[6] + 1.2; | |
265 | dpara_sm[1] = dpara_sm[0] *root3_cons; | |
266 | // | |
cfce8870 | 267 | gMC->Gsvolu("SUPR","PARA", idtmed[607], dpara_sm, 6); |
268 | gMC->Gsatt("SUPR", "SEEN", 1); | |
6edc06da | 269 | // SS |
270 | Float_t dpara_ss[6] = {12.5,12.5,8.,30.,0.,0.}; | |
271 | dpara_ss[0]= dpara[0]; | |
272 | dpara_ss[1]= dpara[1]; | |
273 | dpara_ss[2]= 0.3/2.; | |
274 | // | |
cfce8870 | 275 | gMC->Gsvolu("SMSS","PARA", idtmed[601], dpara_ss, 6); |
276 | gMC->Gsatt("SMSS", "SEEN", 1); | |
6edc06da | 277 | // Air |
278 | Float_t dpara_air[6] = {12.5,12.5,8.,30.,0.,0.}; | |
279 | dpara_air[0]= dpara[0] - 0.5; | |
280 | dpara_air[1]= dpara_air[0] * root3_cons; | |
281 | dpara_air[2]= 0.1/2.; | |
cfce8870 | 282 | // gMC->Gsvolu("SMAR","PARA", idtmed[604], dpara_air, 6); |
283 | gMC->Gsvolu("SMAR","PARA", idtmed[698], dpara_air, 6); | |
284 | gMC->Gsatt("SMAR", "SEEN", 1); | |
6edc06da | 285 | // |
286 | // volume for gas chamber (DW11) | |
287 | // | |
cfce8870 | 288 | // gMC->Gsvolu("DW11","PARA", idtmed[604], dpara, 6); |
289 | gMC->Gsvolu("DW11","PARA", idtmed[698], dpara, 6); | |
290 | gMC->Gsatt("DW11", "SEEN", 1); | |
6edc06da | 291 | // Place outer hex inside DW11 |
292 | yb = -dpara[1] + (1./root3_cons)*hexd1[6]; | |
293 | zb = 0.; | |
294 | for (j = 1; j <= npad2; ++j) { | |
295 | xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6]; | |
296 | if(xrow >= 2){ | |
297 | xb = xb+(xrow-1)*hexd1[6]; | |
298 | } | |
299 | for (i = 1; i <= npad2; ++i) { | |
300 | number = i+(j-1)*npad2; | |
cfce8870 | 301 | gMC->Gsposp("DS11", number, "DW11", xb, yb, zb, ihrotm, "ONLY", hexd1, 10); |
6edc06da | 302 | xb += (hexd1[6]*2.); |
303 | } | |
304 | xrow = xrow+1; | |
305 | yb += (hexd1[6]*sqrt(3.)); | |
306 | } | |
307 | Float_t z_ss,z_air1,z_air2,z_gas; | |
308 | // Place other components inside super module | |
309 | z_ss=-dpara_sm[2]+dpara_ss[2]; | |
cfce8870 | 310 | gMC->Gspos("SMSS", 1, "SUPR", 0., 0., z_ss, 0, "ONLY"); |
6edc06da | 311 | z_air1=z_ss+dpara_ss[2] +dpara_air[2]; |
cfce8870 | 312 | gMC->Gspos("SMAR", 1, "SUPR", 0., 0., z_air1, 0, "ONLY"); |
6edc06da | 313 | z_gas=z_air1+dpara_air[2]+dpara[2]+0.1; |
cfce8870 | 314 | gMC->Gspos("DW11", 1, "SUPR", 0., 0., z_gas, 0, "ONLY"); |
6edc06da | 315 | z_air2=z_gas+dpara[2]+0.1+dpara_air[2]; |
cfce8870 | 316 | gMC->Gspos("SMAR", 2, "SUPR", 0., 0., z_air2, 0, "ONLY"); |
6edc06da | 317 | |
318 | // --- DEFINE MODules, iron, and lead voLUMES | |
319 | ||
320 | ||
321 | // volume for SUPERMODULE | |
322 | // Pb | |
323 | Float_t dpara_pb[6] = {12.5,12.5,8.,30.,0.,0.}; | |
324 | dpara_pb[0]=dpara_sm[0]; | |
325 | dpara_pb[1]=dpara_sm[1]; | |
326 | // dpara_pb[2]=1.1/2.; | |
327 | dpara_pb[2]=1.5/2.; | |
cfce8870 | 328 | gMC->Gsvolu("SUPB","PARA", idtmed[600], dpara_pb, 6); |
329 | gMC->Gsatt("SUPB", "SEEN", 1); | |
6edc06da | 330 | // Fe |
331 | Float_t dpara_fe[6] = {12.5,12.5,8.,30.,0.,0.}; | |
332 | dpara_fe[0]=dpara_sm[0]; | |
333 | dpara_fe[1]=dpara_sm[1]; | |
334 | dpara_fe[2]=0.5/2.; | |
cfce8870 | 335 | gMC->Gsvolu("SUFE","PARA", idtmed[601], dpara_fe, 6); |
336 | gMC->Gsatt("SUFE", "SEEN", 1); | |
6edc06da | 337 | // volume for DM11 |
338 | Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
339 | dpara_dm11[0]=dpara_sm[0]+.01; | |
340 | dpara_dm11[1] = dpara_dm11[0] *root3_cons; | |
341 | dpara_dm11[2]= 6.2/2.; | |
342 | ||
343 | // | |
cfce8870 | 344 | gMC->Gsvolu("DM11","PARA", idtmed[698], dpara_dm11, 6); |
345 | gMC->Gsatt("DM11", "SEEN", 1); | |
6edc06da | 346 | // position super module inside DM11 |
347 | Float_t z_ps,z_pb,z_fe,z_cv; | |
348 | z_ps=-dpara_dm11[2]+dpara_sm[2]; | |
cfce8870 | 349 | gMC->Gspos("SUPR", 1, "DM11", 0., 0., z_ps, irotdm, "ONLY"); |
6edc06da | 350 | z_pb=z_ps+dpara_sm[2]+dpara_pb[2]; |
cfce8870 | 351 | gMC->Gspos("SUPB", 1, "DM11", 0., 0., z_pb, 0, "ONLY"); |
6edc06da | 352 | z_fe=z_pb+dpara_pb[2]+dpara_fe[2]; |
cfce8870 | 353 | gMC->Gspos("SUFE", 1, "DM11", 0., 0., z_fe, 0, "ONLY"); |
6edc06da | 354 | z_cv=z_fe+dpara_fe[2]+dpara_sm[2]; |
cfce8870 | 355 | gMC->Gspos("SUPR", 2, "DM11", 0., 0., z_cv, 0, "ONLY"); |
6edc06da | 356 | // |
357 | } | |
358 | ||
359 | //_____________________________________________________________________________ | |
360 | void AliPMDv1::DrawModule() | |
361 | { | |
362 | // | |
363 | // Draw a shaded view of the Photon Multiplicity Detector | |
364 | // | |
365 | ||
cfce8870 | 366 | gMC->Gsatt("*", "seen", -1); |
367 | gMC->Gsatt("alic", "seen", 0); | |
6edc06da | 368 | // |
369 | // Set the visibility of the components | |
370 | // | |
cfce8870 | 371 | gMC->Gsatt("DP11","seen",0); |
372 | gMC->Gsatt("DS11","seen",1); | |
373 | gMC->Gsatt("DW11","seen",0); | |
374 | gMC->Gsatt("DM11","seen",1); | |
375 | gMC->Gsatt("DPMD","seen",0); | |
6edc06da | 376 | // |
cfce8870 | 377 | gMC->Gdopt("hide", "on"); |
378 | gMC->Gdopt("shad", "on"); | |
379 | gMC->Gsatt("*", "fill", 7); | |
380 | gMC->SetClipBox("."); | |
381 | gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); | |
382 | gMC->DefaultRange(); | |
383 | gMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02); | |
384 | gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1"); | |
385 | //gMC->Gdman(17, 5, "MAN"); | |
386 | gMC->Gdopt("hide", "off"); | |
6edc06da | 387 | } |
388 | ||
389 | //_____________________________________________________________________________ | |
390 | void AliPMDv1::CreateMaterials() | |
391 | { | |
392 | // | |
393 | // Create materials for the PMD version 1 | |
394 | // | |
395 | // ORIGIN : Y. P. VIYOGI | |
396 | // | |
397 | ||
6edc06da | 398 | // --- The Argon- CO2 mixture --- |
399 | Float_t ag[2] = { 39.95 }; | |
400 | Float_t zg[2] = { 18. }; | |
401 | Float_t wg[2] = { .8,.2 }; | |
402 | Float_t dar = .001782; // --- Ar density in g/cm3 --- | |
403 | // --- CO2 --- | |
404 | Float_t ac[2] = { 12.,16. }; | |
405 | Float_t zc[2] = { 6.,8. }; | |
406 | Float_t wc[2] = { 1.,2. }; | |
407 | Float_t dc = .001977; | |
408 | Float_t dco = .002; // --- CO2 density in g/cm3 --- | |
409 | ||
410 | Float_t absl, radl, a, d, z; | |
411 | Float_t dg; | |
412 | Float_t x0ar; | |
413 | Float_t buf[1]; | |
414 | Int_t nbuf; | |
415 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
416 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
417 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
418 | ||
ad51aeb0 | 419 | Int_t *idtmed = fIdtmed->GetArray()-599; |
6edc06da | 420 | Int_t isxfld = gAlice->Field()->Integ(); |
421 | Float_t sxmgmx = gAlice->Field()->Max(); | |
422 | ||
423 | // --- Define the various materials for GEANT --- | |
424 | AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5); | |
425 | x0ar = 19.55 / dar; | |
426 | AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4); | |
427 | AliMixture(3, "CO2 $", ac, zc, dc, -2, wc); | |
428 | AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5); | |
429 | AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5); | |
430 | AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3); | |
431 | AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.); | |
432 | AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.); | |
433 | AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7); | |
434 | AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.); | |
435 | AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9); | |
436 | AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.); | |
437 | ||
438 | AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.); | |
439 | AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.); | |
440 | AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16); | |
441 | AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.); | |
442 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
443 | // define gas-mixtures | |
444 | ||
445 | char namate[21]; | |
cfce8870 | 446 | gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); |
6edc06da | 447 | ag[1] = a; |
448 | zg[1] = z; | |
449 | dg = (dar * 4 + dco) / 5; | |
450 | AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg); | |
451 | ||
452 | // Define tracking media | |
ad51aeb0 | 453 | AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); |
454 | AliMedium(2, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
455 | AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
456 | AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
457 | AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
458 | AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
459 | AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
460 | AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
461 | AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
462 | AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10); | |
463 | AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1); | |
464 | AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
465 | AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
466 | AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
6edc06da | 467 | |
468 | // --- Generate explicitly delta rays in the iron, aluminium and lead --- | |
cfce8870 | 469 | gMC->Gstpar(idtmed[600], "LOSS", 3.); |
470 | gMC->Gstpar(idtmed[600], "DRAY", 1.); | |
6edc06da | 471 | |
cfce8870 | 472 | gMC->Gstpar(idtmed[603], "LOSS", 3.); |
473 | gMC->Gstpar(idtmed[603], "DRAY", 1.); | |
6edc06da | 474 | |
cfce8870 | 475 | gMC->Gstpar(idtmed[604], "LOSS", 3.); |
476 | gMC->Gstpar(idtmed[604], "DRAY", 1.); | |
6edc06da | 477 | |
cfce8870 | 478 | gMC->Gstpar(idtmed[605], "LOSS", 3.); |
479 | gMC->Gstpar(idtmed[605], "DRAY", 1.); | |
6edc06da | 480 | |
cfce8870 | 481 | gMC->Gstpar(idtmed[606], "LOSS", 3.); |
482 | gMC->Gstpar(idtmed[606], "DRAY", 1.); | |
6edc06da | 483 | |
cfce8870 | 484 | gMC->Gstpar(idtmed[607], "LOSS", 3.); |
485 | gMC->Gstpar(idtmed[607], "DRAY", 1.); | |
6edc06da | 486 | |
487 | // --- Energy cut-offs in the Pb and Al to gain time in tracking --- | |
488 | // --- without affecting the hit patterns --- | |
cfce8870 | 489 | gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4); |
490 | gMC->Gstpar(idtmed[600], "CUTELE", 1e-4); | |
491 | gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4); | |
492 | gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4); | |
493 | gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4); | |
494 | gMC->Gstpar(idtmed[605], "CUTELE", 1e-4); | |
495 | gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4); | |
496 | gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4); | |
497 | gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4); | |
498 | gMC->Gstpar(idtmed[606], "CUTELE", 1e-4); | |
499 | gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4); | |
500 | gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4); | |
501 | gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4); | |
502 | gMC->Gstpar(idtmed[603], "CUTELE", 1e-4); | |
503 | gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4); | |
504 | gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4); | |
505 | gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4); | |
506 | gMC->Gstpar(idtmed[609], "CUTELE", 1e-4); | |
507 | gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4); | |
508 | gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4); | |
6edc06da | 509 | |
510 | // --- Prevent particles stopping in the gas due to energy cut-off --- | |
cfce8870 | 511 | gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5); |
512 | gMC->Gstpar(idtmed[604], "CUTELE", 1e-5); | |
513 | gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5); | |
514 | gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5); | |
515 | gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5); | |
6edc06da | 516 | } |
517 | ||
518 | //_____________________________________________________________________________ | |
519 | void AliPMDv1::Init() | |
520 | { | |
521 | // | |
522 | // Initialises PMD detector after it has been built | |
523 | // | |
524 | Int_t i; | |
525 | kdet=1; | |
526 | // | |
527 | printf("\n"); | |
528 | for(i=0;i<35;i++) printf("*"); | |
529 | printf(" PMD_INIT "); | |
530 | for(i=0;i<35;i++) printf("*"); | |
531 | printf("\n"); | |
532 | printf(" PMD simulation package (v1) initialised\n"); | |
533 | printf(" parameters of pmd\n"); | |
534 | printf("%6d %10.2f %10.2f %10.2f %10.2f %10.2f\n",kdet,thmin,thmax,zdist,thlow,thhigh); | |
535 | // | |
536 | for(i=0;i<80;i++) printf("*"); | |
537 | printf("\n"); | |
538 | // | |
ad51aeb0 | 539 | Int_t *idtmed = fIdtmed->GetArray()-599; |
6edc06da | 540 | fMedSens=idtmed[605-1]; |
541 | } | |
542 | ||
543 | //_____________________________________________________________________________ | |
544 | void AliPMDv1::StepManager() | |
545 | { | |
546 | // | |
547 | // Called at each step in the PMD | |
548 | // | |
549 | Int_t copy; | |
550 | Float_t hits[4], destep; | |
551 | Float_t center[3] = {0,0,0}; | |
552 | Int_t vol[5]; | |
0a6d8768 | 553 | // char *namep; |
6edc06da | 554 | |
cfce8870 | 555 | if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) { |
6edc06da | 556 | |
0a6d8768 | 557 | gMC->CurrentVolID(copy); |
558 | // namep=gMC->CurrentVolName(); | |
559 | // printf("Current vol is %s \n",namep); | |
6edc06da | 560 | vol[0]=copy; |
0a6d8768 | 561 | gMC->CurrentVolOffID(1,copy); |
562 | // namep=gMC->CurrentVolOffName(1); | |
563 | // printf("Current vol 11 is %s \n",namep); | |
6edc06da | 564 | vol[1]=copy; |
0a6d8768 | 565 | gMC->CurrentVolOffID(2,copy); |
566 | // namep=gMC->CurrentVolOffName(2); | |
567 | // printf("Current vol 22 is %s \n",namep); | |
6edc06da | 568 | vol[2]=copy; |
569 | // if(strncmp(namep,"DW11",4))vol[2]=1; | |
0a6d8768 | 570 | gMC->CurrentVolOffID(3,copy); |
571 | // namep=gMC->CurrentVolOffName(3); | |
572 | // printf("Current vol 33 is %s \n",namep); | |
6edc06da | 573 | vol[3]=copy; |
0a6d8768 | 574 | gMC->CurrentVolOffID(4,copy); |
575 | // namep=gMC->CurrentVolOffName(4); | |
576 | // printf("Current vol 44 is %s \n",namep); | |
6edc06da | 577 | vol[4]=copy; |
578 | // printf("volume number %d,%d,%d,%d,%d \n",vol[0],vol[1],vol[2],vol[3],vol[4]); | |
cfce8870 | 579 | gMC->Gdtom(center,hits,1); |
6edc06da | 580 | hits[3] = destep*1e9; //Number in eV |
581 | AddHit(gAlice->CurrentTrack(), vol, hits); | |
582 | } | |
583 | } | |
584 | ||
585 |