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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // // |
3 | // Photon Multiplicity Detector Version 1 // |
4 | // // |
5 | //Begin_Html |
6 | /* |
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7 | <img src="picts/AliPMDv1Class.gif"> |
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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 | /* |
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49 | <img src="picts/AliPMDv1.gif"> |
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50 | */ |
51 | //End_Html |
52 | //Begin_Html |
53 | /* |
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54 | <img src="picts/AliPMDv1Tree.gif"> |
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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}; |
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113 | Int_t *idtmed = fIdtmed->GetArray()-599; |
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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 | |
128 | AliMC* pMC = AliMC::GetMC(); |
129 | |
130 | pMC->Gsvolu("DPMD", "TUBE", idtmed[698], sipmd, 3); |
131 | pMC->Gsvolu("PM01", "TUBE", idtmed[698], sip01, 3); |
132 | pMC->Gsvolu("PM02", "TUBE", idtmed[698], sip02, 3); |
133 | pMC->Gsvolu("PM03", "TUBE", idtmed[698], sip03, 3); |
134 | pMC->Gsvolu("PM04", "TUBE", idtmed[698], sip04, 3); |
135 | pMC->Gsvolu("PM05", "TUBE", idtmed[698], sip05, 3); |
136 | pMC->Gsvolu("PM06", "TUBE", idtmed[698], sip06, 3); |
137 | pMC->Gsvolu("PM07", "TUBE", idtmed[698], sip07, 3); |
138 | pMC->Gsvolu("PM08", "TUBE", idtmed[698], sip08, 3); |
139 | pMC->Gsvolu("PM09", "TUBE", idtmed[698], sip09, 3); |
140 | pMC->Gsvolu("PM10", "TUBE", idtmed[698], sip10, 3); |
141 | pMC->Gsvolu("PM11", "TUBE", idtmed[698], sip11, 3); |
142 | pMC->Gsvolu("PM12", "TUBE", idtmed[698], sip12, 3); |
143 | pMC->Gsvolu("PM13", "TUBE", idtmed[698], sip13, 3); |
144 | pMC->Gsvolu("PM14", "TUBE", idtmed[698], sip14, 3); |
145 | pMC->Gsvolu("PMDL", "TUBS", idtmed[698], sipmdl, 5); |
146 | pMC->Gsvolu("PMDR", "TUBS", idtmed[698], sipmdr, 5); |
147 | // |
148 | const Int_t npad2=72; |
149 | Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.53,0.4,0.,0.53}; |
150 | Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.}; |
151 | dpara_sm[0]=(npad2+0.25)*hexd1[6] + 1.2; |
152 | dpara_sm[1] = dpara_sm[0] *root3_2; |
153 | Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.}; |
154 | dpara_dm11[0]=dpara_sm[0]+.01; |
155 | dpara_dm11[1] = dpara_dm11[0] *root3_2; |
156 | dpara_dm11[2]= 6.2/2.; |
157 | // |
158 | for (i = 0; i < 2; ++i) { |
159 | num_mod=i+1; |
160 | pMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6); |
161 | pMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6); |
162 | printf("Num_mod %d\n",num_mod); |
163 | } |
164 | maxbox=13; |
165 | for (i = 2; i < maxbox; ++i) { |
166 | num_mod=i+1; |
167 | pMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6); |
168 | pMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6); |
169 | printf("Num_mod %d\n",num_mod); |
170 | } |
171 | // pMC->Gspos("PM01", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
172 | // pMC->Gspos("PM02", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
173 | // pMC->Gspos("PM03", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
174 | // pMC->Gspos("PM04", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
175 | // pMC->Gspos("PM05", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
176 | // pMC->Gspos("PM06", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
177 | // pMC->Gspos("PM07", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
178 | // pMC->Gspos("PM08", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
179 | // pMC->Gspos("PM09", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
180 | // pMC->Gspos("PM10", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
181 | // pMC->Gspos("PM11", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
182 | // pMC->Gspos("PM12", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
183 | // pMC->Gspos("PM13", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
184 | // pMC->Gspos("PM14", 1, "DPMD", 0.,0.,0., 0, "ONLY"); |
185 | // --- Place the DPMD in ALICE with front edge 5.8m from vertex --- |
186 | xp = 0.; |
187 | yp = 0.; |
188 | zp = zdist1; |
189 | // pMC->Gspos("PMDL", 1, "DPMD", xp,yp,0., 0, "ONLY"); |
190 | // pMC->Gspos("PMDR", 1, "DPMD", xp,yp,0., 0, "ONLY"); |
191 | pMC->Gspos("DPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY"); |
192 | |
193 | } |
194 | |
195 | //_____________________________________________________________________________ |
196 | void AliPMDv1::CreatePads() |
197 | { |
198 | // |
199 | // Create the geometry of the pads |
200 | // *** DEFINITION OF THE GEOMETRY OF THE PMD *** |
201 | // *** HEXAGONAL PADS WITH 10 MM SQUARE EQUIVALENT |
202 | // -- Author : S. Chattopadhyay, 02/04/1999. |
203 | |
204 | // Basic unit is DP11, a hexagonal cell, which is placed inside another |
205 | // hexagonal cell (DS11) of larger radius, compared to DP11. The difference in r// adius gives the dimension of half width of each cell wall. |
206 | // These cells are placed as 72 x 72 array in a |
207 | // rhombus shaped supermodule (DW11). The rhombus shaped modules are designed |
208 | // to have closed packed structure. |
209 | // Each supermodule (SUPR), made of G10 is filled with following components |
210 | // SMSS --> SS backing, |
211 | // SMAR --> Gap between gas hexagonal cells and G10 backing. |
212 | // DW11 --> Ar-Co2 filled gas hexagonal cells. |
213 | // SMAR |
214 | // These supermodules are placed inside the main module (DM11), with Fe and |
215 | // Pb converter positioned between CPV and PMD. |
216 | // DM11 made of |
217 | // SUPR (rotated to place steel on the other side), this works as preshower |
218 | // when PMD is placed in -ve z. |
219 | // SUPB --> Pb converter |
220 | // SUFE --> Fe backing |
221 | // SUPR --> supermodule without rotation (this acts as CPV). |
222 | // |
223 | |
224 | AliMC* pMC = AliMC::GetMC(); |
225 | |
226 | const Int_t npad2 = 72; |
227 | Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.53,0.4,0.,0.53}; |
228 | //total wall thickness=0.2*2 |
229 | Float_t hexd2[10] = {0.,360.,6,2,-0.4,0.,0.51,0.4,0.,0.51}; |
230 | Int_t i, j; |
231 | Float_t xb, yb, zb;//, sw[3]; |
232 | Int_t number; |
233 | Int_t ihrotm,irotdm; |
234 | const Float_t root3_cons = sqrt(3) /2.; |
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235 | Int_t *idtmed = fIdtmed->GetArray()-599; |
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236 | |
237 | AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.); |
238 | AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.); |
239 | zdist1 = fIn[2]; |
240 | zdist = TMath::Abs(zdist1); |
241 | // |
242 | Int_t xrow=1; |
243 | Float_t dpara[6] = {12.5,12.5,0.4,30.,0.,0.}; |
244 | dpara[0]=(npad2+0.25)*hexd1[6]; |
245 | dpara[1] = dpara[0] *root3_cons; |
246 | // |
247 | //Subhasis, dimensional parameters of rhombus (dpara) as given to gsvolu |
248 | // rhombus to accomodate 72 x 72 hexagons, and with total 1.2cm extension |
249 | //(1mm tolerance on both side and 5mm thick G10 wall) |
250 | // |
251 | |
252 | // **** PAD SIZE 10 MM SQUARE EQUIVALENT |
253 | // |
254 | // Inner hex filled with gas |
255 | pMC->Gsvolu("DP11", "PGON", idtmed[604], hexd2,10); |
256 | pMC->Gsatt("DP11", "SEEN", 1); |
257 | |
258 | // Outer hex filled with Plastic |
259 | //plastic pMC->Gsvolu("DS11", "PGON", idtmed[616], hexd1,10); |
260 | // Iron |
261 | pMC->Gsvolu("DS11", "PGON", idtmed[601], hexd1,10); |
262 | pMC->Gsatt("DS11", "SEEN", 1); |
263 | // --- place inner hex inside outer hex |
264 | pMC->Gsposp("DP11", 1, "DS11", 0., 0., 0., 0, "ONLY", hexd2, 10); |
265 | // Rhombus shaped supermodules (defined by PARA) |
266 | // volume for SUPERMODULE |
267 | Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.}; |
268 | dpara_sm[0]=(npad2+0.25)*hexd1[6] + 1.2; |
269 | dpara_sm[1] = dpara_sm[0] *root3_cons; |
270 | // |
271 | pMC->Gsvolu("SUPR","PARA", idtmed[607], dpara_sm, 6); |
272 | pMC->Gsatt("SUPR", "SEEN", 1); |
273 | // SS |
274 | Float_t dpara_ss[6] = {12.5,12.5,8.,30.,0.,0.}; |
275 | dpara_ss[0]= dpara[0]; |
276 | dpara_ss[1]= dpara[1]; |
277 | dpara_ss[2]= 0.3/2.; |
278 | // |
279 | pMC->Gsvolu("SMSS","PARA", idtmed[601], dpara_ss, 6); |
280 | pMC->Gsatt("SMSS", "SEEN", 1); |
281 | // Air |
282 | Float_t dpara_air[6] = {12.5,12.5,8.,30.,0.,0.}; |
283 | dpara_air[0]= dpara[0] - 0.5; |
284 | dpara_air[1]= dpara_air[0] * root3_cons; |
285 | dpara_air[2]= 0.1/2.; |
286 | // pMC->Gsvolu("SMAR","PARA", idtmed[604], dpara_air, 6); |
287 | pMC->Gsvolu("SMAR","PARA", idtmed[698], dpara_air, 6); |
288 | pMC->Gsatt("SMAR", "SEEN", 1); |
289 | // |
290 | // volume for gas chamber (DW11) |
291 | // |
292 | // pMC->Gsvolu("DW11","PARA", idtmed[604], dpara, 6); |
293 | pMC->Gsvolu("DW11","PARA", idtmed[698], dpara, 6); |
294 | pMC->Gsatt("DW11", "SEEN", 1); |
295 | // Place outer hex inside DW11 |
296 | yb = -dpara[1] + (1./root3_cons)*hexd1[6]; |
297 | zb = 0.; |
298 | for (j = 1; j <= npad2; ++j) { |
299 | xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6]; |
300 | if(xrow >= 2){ |
301 | xb = xb+(xrow-1)*hexd1[6]; |
302 | } |
303 | for (i = 1; i <= npad2; ++i) { |
304 | number = i+(j-1)*npad2; |
305 | pMC->Gsposp("DS11", number, "DW11", xb, yb, zb, ihrotm, "ONLY", hexd1, 10); |
306 | xb += (hexd1[6]*2.); |
307 | } |
308 | xrow = xrow+1; |
309 | yb += (hexd1[6]*sqrt(3.)); |
310 | } |
311 | Float_t z_ss,z_air1,z_air2,z_gas; |
312 | // Place other components inside super module |
313 | z_ss=-dpara_sm[2]+dpara_ss[2]; |
314 | pMC->Gspos("SMSS", 1, "SUPR", 0., 0., z_ss, 0, "ONLY"); |
315 | z_air1=z_ss+dpara_ss[2] +dpara_air[2]; |
316 | pMC->Gspos("SMAR", 1, "SUPR", 0., 0., z_air1, 0, "ONLY"); |
317 | z_gas=z_air1+dpara_air[2]+dpara[2]+0.1; |
318 | pMC->Gspos("DW11", 1, "SUPR", 0., 0., z_gas, 0, "ONLY"); |
319 | z_air2=z_gas+dpara[2]+0.1+dpara_air[2]; |
320 | pMC->Gspos("SMAR", 2, "SUPR", 0., 0., z_air2, 0, "ONLY"); |
321 | |
322 | // --- DEFINE MODules, iron, and lead voLUMES |
323 | |
324 | |
325 | // volume for SUPERMODULE |
326 | // Pb |
327 | Float_t dpara_pb[6] = {12.5,12.5,8.,30.,0.,0.}; |
328 | dpara_pb[0]=dpara_sm[0]; |
329 | dpara_pb[1]=dpara_sm[1]; |
330 | // dpara_pb[2]=1.1/2.; |
331 | dpara_pb[2]=1.5/2.; |
332 | pMC->Gsvolu("SUPB","PARA", idtmed[600], dpara_pb, 6); |
333 | pMC->Gsatt("SUPB", "SEEN", 1); |
334 | // Fe |
335 | Float_t dpara_fe[6] = {12.5,12.5,8.,30.,0.,0.}; |
336 | dpara_fe[0]=dpara_sm[0]; |
337 | dpara_fe[1]=dpara_sm[1]; |
338 | dpara_fe[2]=0.5/2.; |
339 | pMC->Gsvolu("SUFE","PARA", idtmed[601], dpara_fe, 6); |
340 | pMC->Gsatt("SUFE", "SEEN", 1); |
341 | // volume for DM11 |
342 | Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.}; |
343 | dpara_dm11[0]=dpara_sm[0]+.01; |
344 | dpara_dm11[1] = dpara_dm11[0] *root3_cons; |
345 | dpara_dm11[2]= 6.2/2.; |
346 | |
347 | // |
348 | pMC->Gsvolu("DM11","PARA", idtmed[698], dpara_dm11, 6); |
349 | pMC->Gsatt("DM11", "SEEN", 1); |
350 | // position super module inside DM11 |
351 | Float_t z_ps,z_pb,z_fe,z_cv; |
352 | z_ps=-dpara_dm11[2]+dpara_sm[2]; |
353 | pMC->Gspos("SUPR", 1, "DM11", 0., 0., z_ps, irotdm, "ONLY"); |
354 | z_pb=z_ps+dpara_sm[2]+dpara_pb[2]; |
355 | pMC->Gspos("SUPB", 1, "DM11", 0., 0., z_pb, 0, "ONLY"); |
356 | z_fe=z_pb+dpara_pb[2]+dpara_fe[2]; |
357 | pMC->Gspos("SUFE", 1, "DM11", 0., 0., z_fe, 0, "ONLY"); |
358 | z_cv=z_fe+dpara_fe[2]+dpara_sm[2]; |
359 | pMC->Gspos("SUPR", 2, "DM11", 0., 0., z_cv, 0, "ONLY"); |
360 | // |
361 | } |
362 | |
363 | //_____________________________________________________________________________ |
364 | void AliPMDv1::DrawModule() |
365 | { |
366 | // |
367 | // Draw a shaded view of the Photon Multiplicity Detector |
368 | // |
369 | |
370 | AliMC* pMC = AliMC::GetMC(); |
371 | |
372 | pMC->Gsatt("*", "seen", -1); |
373 | pMC->Gsatt("alic", "seen", 0); |
374 | // |
375 | // Set the visibility of the components |
376 | // |
377 | pMC->Gsatt("DP11","seen",0); |
378 | pMC->Gsatt("DS11","seen",1); |
379 | pMC->Gsatt("DW11","seen",0); |
380 | pMC->Gsatt("DM11","seen",1); |
381 | pMC->Gsatt("DPMD","seen",0); |
382 | // |
383 | pMC->Gdopt("hide", "on"); |
384 | pMC->Gdopt("shad", "on"); |
385 | pMC->Gsatt("*", "fill", 7); |
386 | pMC->SetClipBox("."); |
387 | pMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); |
388 | pMC->DefaultRange(); |
389 | pMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02); |
390 | pMC->Gdhead(1111, "Photon Multiplicity Detector Version 1"); |
391 | //pMC->Gdman(17, 5, "MAN"); |
392 | pMC->Gdopt("hide", "off"); |
393 | } |
394 | |
395 | //_____________________________________________________________________________ |
396 | void AliPMDv1::CreateMaterials() |
397 | { |
398 | // |
399 | // Create materials for the PMD version 1 |
400 | // |
401 | // ORIGIN : Y. P. VIYOGI |
402 | // |
403 | |
404 | AliMC* pMC = AliMC::GetMC(); |
405 | |
406 | // --- The Argon- CO2 mixture --- |
407 | Float_t ag[2] = { 39.95 }; |
408 | Float_t zg[2] = { 18. }; |
409 | Float_t wg[2] = { .8,.2 }; |
410 | Float_t dar = .001782; // --- Ar density in g/cm3 --- |
411 | // --- CO2 --- |
412 | Float_t ac[2] = { 12.,16. }; |
413 | Float_t zc[2] = { 6.,8. }; |
414 | Float_t wc[2] = { 1.,2. }; |
415 | Float_t dc = .001977; |
416 | Float_t dco = .002; // --- CO2 density in g/cm3 --- |
417 | |
418 | Float_t absl, radl, a, d, z; |
419 | Float_t dg; |
420 | Float_t x0ar; |
421 | Float_t buf[1]; |
422 | Int_t nbuf; |
423 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; |
424 | Float_t zsteel[4] = { 26.,24.,28.,14. }; |
425 | Float_t wsteel[4] = { .715,.18,.1,.005 }; |
426 | |
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427 | Int_t *idtmed = fIdtmed->GetArray()-599; |
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428 | Int_t isxfld = gAlice->Field()->Integ(); |
429 | Float_t sxmgmx = gAlice->Field()->Max(); |
430 | |
431 | // --- Define the various materials for GEANT --- |
432 | AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5); |
433 | x0ar = 19.55 / dar; |
434 | AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4); |
435 | AliMixture(3, "CO2 $", ac, zc, dc, -2, wc); |
436 | AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5); |
437 | AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5); |
438 | AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3); |
439 | AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.); |
440 | AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.); |
441 | AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7); |
442 | AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.); |
443 | AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9); |
444 | AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.); |
445 | |
446 | AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.); |
447 | AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.); |
448 | AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16); |
449 | AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.); |
450 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); |
451 | // define gas-mixtures |
452 | |
453 | char namate[21]; |
454 | pMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); |
455 | ag[1] = a; |
456 | zg[1] = z; |
457 | dg = (dar * 4 + dco) / 5; |
458 | AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg); |
459 | |
460 | // Define tracking media |
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461 | AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); |
462 | AliMedium(2, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); |
463 | AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); |
464 | AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); |
465 | AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); |
466 | AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); |
467 | AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); |
468 | AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); |
469 | AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); |
470 | AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10); |
471 | AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1); |
472 | AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); |
473 | AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); |
474 | AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); |
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475 | |
476 | // --- Generate explicitly delta rays in the iron, aluminium and lead --- |
477 | pMC->Gstpar(idtmed[600], "LOSS", 3.); |
478 | pMC->Gstpar(idtmed[600], "DRAY", 1.); |
479 | |
480 | pMC->Gstpar(idtmed[603], "LOSS", 3.); |
481 | pMC->Gstpar(idtmed[603], "DRAY", 1.); |
482 | |
483 | pMC->Gstpar(idtmed[604], "LOSS", 3.); |
484 | pMC->Gstpar(idtmed[604], "DRAY", 1.); |
485 | |
486 | pMC->Gstpar(idtmed[605], "LOSS", 3.); |
487 | pMC->Gstpar(idtmed[605], "DRAY", 1.); |
488 | |
489 | pMC->Gstpar(idtmed[606], "LOSS", 3.); |
490 | pMC->Gstpar(idtmed[606], "DRAY", 1.); |
491 | |
492 | pMC->Gstpar(idtmed[607], "LOSS", 3.); |
493 | pMC->Gstpar(idtmed[607], "DRAY", 1.); |
494 | |
495 | // --- Energy cut-offs in the Pb and Al to gain time in tracking --- |
496 | // --- without affecting the hit patterns --- |
497 | pMC->Gstpar(idtmed[600], "CUTGAM", 1e-4); |
498 | pMC->Gstpar(idtmed[600], "CUTELE", 1e-4); |
499 | pMC->Gstpar(idtmed[600], "CUTNEU", 1e-4); |
500 | pMC->Gstpar(idtmed[600], "CUTHAD", 1e-4); |
501 | pMC->Gstpar(idtmed[605], "CUTGAM", 1e-4); |
502 | pMC->Gstpar(idtmed[605], "CUTELE", 1e-4); |
503 | pMC->Gstpar(idtmed[605], "CUTNEU", 1e-4); |
504 | pMC->Gstpar(idtmed[605], "CUTHAD", 1e-4); |
505 | pMC->Gstpar(idtmed[606], "CUTGAM", 1e-4); |
506 | pMC->Gstpar(idtmed[606], "CUTELE", 1e-4); |
507 | pMC->Gstpar(idtmed[606], "CUTNEU", 1e-4); |
508 | pMC->Gstpar(idtmed[606], "CUTHAD", 1e-4); |
509 | pMC->Gstpar(idtmed[603], "CUTGAM", 1e-4); |
510 | pMC->Gstpar(idtmed[603], "CUTELE", 1e-4); |
511 | pMC->Gstpar(idtmed[603], "CUTNEU", 1e-4); |
512 | pMC->Gstpar(idtmed[603], "CUTHAD", 1e-4); |
513 | pMC->Gstpar(idtmed[609], "CUTGAM", 1e-4); |
514 | pMC->Gstpar(idtmed[609], "CUTELE", 1e-4); |
515 | pMC->Gstpar(idtmed[609], "CUTNEU", 1e-4); |
516 | pMC->Gstpar(idtmed[609], "CUTHAD", 1e-4); |
517 | |
518 | // --- Prevent particles stopping in the gas due to energy cut-off --- |
519 | pMC->Gstpar(idtmed[604], "CUTGAM", 1e-5); |
520 | pMC->Gstpar(idtmed[604], "CUTELE", 1e-5); |
521 | pMC->Gstpar(idtmed[604], "CUTNEU", 1e-5); |
522 | pMC->Gstpar(idtmed[604], "CUTHAD", 1e-5); |
523 | pMC->Gstpar(idtmed[604], "CUTMUO", 1e-5); |
524 | } |
525 | |
526 | //_____________________________________________________________________________ |
527 | void AliPMDv1::Init() |
528 | { |
529 | // |
530 | // Initialises PMD detector after it has been built |
531 | // |
532 | Int_t i; |
533 | kdet=1; |
534 | // |
535 | printf("\n"); |
536 | for(i=0;i<35;i++) printf("*"); |
537 | printf(" PMD_INIT "); |
538 | for(i=0;i<35;i++) printf("*"); |
539 | printf("\n"); |
540 | printf(" PMD simulation package (v1) initialised\n"); |
541 | printf(" parameters of pmd\n"); |
542 | printf("%6d %10.2f %10.2f %10.2f %10.2f %10.2f\n",kdet,thmin,thmax,zdist,thlow,thhigh); |
543 | // |
544 | for(i=0;i<80;i++) printf("*"); |
545 | printf("\n"); |
546 | // |
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547 | Int_t *idtmed = fIdtmed->GetArray()-599; |
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548 | fMedSens=idtmed[605-1]; |
549 | } |
550 | |
551 | //_____________________________________________________________________________ |
552 | void AliPMDv1::StepManager() |
553 | { |
554 | // |
555 | // Called at each step in the PMD |
556 | // |
557 | Int_t copy; |
558 | Float_t hits[4], destep; |
559 | Float_t center[3] = {0,0,0}; |
560 | Int_t vol[5]; |
561 | Text_t namep[5]; |
562 | |
563 | AliMC* pMC=AliMC::GetMC(); |
564 | if(pMC->GetMedium() == fMedSens && (destep = pMC->Edep())) { |
565 | |
566 | // pMC->CurrentVol(0, copy); |
567 | pMC->CurrentVol(namep, copy); |
568 | // printf("Current vol is %s \n",namep); |
569 | vol[0]=copy; |
570 | // pMC->CurrentVolOff(1,0,copy); |
571 | pMC->CurrentVolOff(1,namep,copy); |
572 | // printf("Current vol 11 is %s \n",namep); |
573 | vol[1]=copy; |
574 | // pMC->CurrentVolOff(2,0,copy); |
575 | pMC->CurrentVolOff(2,namep,copy); |
576 | // printf("Current vol 22 is %s \n",namep); |
577 | vol[2]=copy; |
578 | // if(strncmp(namep,"DW11",4))vol[2]=1; |
579 | // pMC->CurrentVolOff(3,0,copy); |
580 | pMC->CurrentVolOff(3,namep,copy); |
581 | // printf("Current vol 33 is %s \n",namep); |
582 | vol[3]=copy; |
583 | pMC->CurrentVolOff(4,namep,copy); |
584 | // printf("Current vol 44 is %s \n",namep); |
585 | vol[4]=copy; |
586 | // printf("volume number %d,%d,%d,%d,%d \n",vol[0],vol[1],vol[2],vol[3],vol[4]); |
587 | pMC->Gdtom(center,hits,1); |
588 | hits[3] = destep*1e9; //Number in eV |
589 | AddHit(gAlice->CurrentTrack(), vol, hits); |
590 | } |
591 | } |
592 | |
593 | |