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6edc06da | 1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // // | |
3 | // Photon Multiplicity Detector Version 1 // | |
4 | // // | |
5 | //Begin_Html | |
6 | /* | |
7 | <img src="gif/AliPMDv1Class.gif"> | |
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 | /* | |
49 | <img src="gif/AliPMDv1.gif"> | |
50 | */ | |
51 | //End_Html | |
52 | //Begin_Html | |
53 | /* | |
54 | <img src="gif/AliPMDv1Tree.gif"> | |
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}; | |
113 | Int_t *idtmed = gAlice->Idtmed(); | |
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.; | |
235 | Int_t *idtmed = gAlice->Idtmed(); | |
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 | ||
427 | Int_t *idtmed = gAlice->Idtmed(); | |
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$", ag, zg, dg, 2, wg); | |
459 | ||
460 | // Define tracking media | |
461 | AliMedium(601, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
462 | AliMedium(602, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
463 | AliMedium(607, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
464 | AliMedium(608, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
465 | AliMedium(604, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
466 | AliMedium(606, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
467 | AliMedium(605, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
468 | AliMedium(609, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
469 | AliMedium(610, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
470 | AliMedium(698, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10); | |
471 | AliMedium(699, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1); | |
472 | AliMedium(615, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
473 | AliMedium(616, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
474 | AliMedium(617, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
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 | // | |
547 | Int_t *idtmed = gAlice->Idtmed(); | |
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 |