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fe4da5cc | 1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // // | |
3 | // Beam pipe class // | |
4 | // // | |
5 | //Begin_Html | |
6 | /* | |
7 | <img src="gif/AliPIPEClass.gif"> | |
8 | */ | |
9 | //End_Html | |
10 | // // | |
11 | /////////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | #include "AliPIPEv1.h" | |
14 | #include "AliRun.h" | |
15 | #include "AliMC.h" | |
16 | ||
17 | ClassImp(AliPIPEv1) | |
18 | ||
19 | //_____________________________________________________________________________ | |
b8032157 | 20 | AliPIPEv1::AliPIPEv1() |
fe4da5cc | 21 | { |
22 | // | |
23 | // Default constructor for beam pipe | |
24 | // | |
25 | } | |
26 | ||
27 | //_____________________________________________________________________________ | |
28 | AliPIPEv1::AliPIPEv1(const char *name, const char *title) | |
29 | : AliPIPE(name,title) | |
30 | { | |
31 | // | |
32 | // Standard constructor for beam pipe | |
33 | // | |
34 | } | |
35 | ||
36 | //_____________________________________________________________________________ | |
37 | void AliPIPEv1::CreateGeometry() | |
38 | { | |
39 | // | |
40 | // Create Beam Pipe geometry | |
41 | // | |
42 | //Begin_Html | |
43 | /* | |
44 | <img src="gif/AliPIPE.gif"> | |
45 | */ | |
46 | //End_Html | |
47 | //Begin_Html | |
48 | /* | |
49 | <img src="gif/AliPIPETree.gif"> | |
50 | */ | |
51 | //End_Html | |
52 | ||
53 | AliMC* pMC = AliMC::GetMC(); | |
54 | ||
55 | Float_t tpar[3], dzmo, zpos, abs_d, abs_l; | |
56 | Float_t r2, dr; | |
57 | ||
58 | const Double_t z_flange = 150; | |
59 | ||
60 | Int_t *idtmed = gAlice->Idtmed(); | |
61 | ||
62 | ||
63 | abs_d = 90.; // DEFINES DRIFT LENGTH | |
64 | //z_nose = 102.; | |
65 | //z_cone = 285.; | |
66 | //theta1 = 24.; // 1. angle defining the front absorber | |
67 | //theta2 = 5.; // 2. angle defining the front absorbe | |
68 | //acc_max = 9.; // ANGLE POLAIRE MAXIMUM | |
69 | //acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION | |
70 | abs_l = 503.; | |
71 | //d_steel = 1.; // THICKNESS OF STEEL SUPPORT | |
72 | //d_poly = 7.5; | |
73 | //d_pb = 2.5; | |
74 | //abs_cc = 315.; // DEFINES LENGTH OF CARBON | |
75 | //abs_c = 358.; | |
76 | //abs_s = 150.; // DEFINES W-SHIELD LENGTH | |
77 | //abs_n = 80.; // START OF NOSE | |
78 | //r_abs = 4.; | |
79 | //r_pb = .1; | |
80 | //epsilon = .01; | |
81 | //theta_r = 3.; | |
82 | //d_rear = 35.; | |
83 | //theta_open = .75; | |
84 | ||
85 | //z_l3 = 700.; | |
86 | //zmag_in = 725.; | |
87 | //zmag_out = 1225.; | |
88 | //zfil_in = 1471.; | |
89 | //zfil_out = 1591.; | |
90 | //zcon_in = 1900.; | |
91 | //zcon_out = 2e3; | |
92 | //zcone_e = 859.0875; | |
93 | //spec_l = 1800.; | |
94 | //zplug_in = 1780.; | |
95 | //zplug_out = 1900.; | |
96 | ||
97 | // Chamber position | |
98 | // CZ1=515.5 | |
99 | //cz1 = 511.; | |
100 | //cz2 = 686.; | |
101 | //cz3 = 971.; | |
102 | //cz4 = 1245.; | |
103 | //cz5 = 1445.; | |
104 | //cz6 = 1610.; | |
105 | //cz7 = 1710.; | |
106 | ||
107 | ||
108 | // the mother of all beam pipes | |
109 | ||
110 | tpar[0] = 0.; | |
111 | tpar[1] = 3.; | |
112 | tpar[2] = (abs_d + 700.) / 2.; | |
113 | dzmo = tpar[2] - abs_d; | |
114 | pMC->Gsvolu("QQMO", "TUBE", idtmed[2015], tpar, 3); | |
115 | pMC->Gspos("QQMO", 1, "ALIC", 0., 0., -dzmo, 0, "ONLY"); | |
116 | ||
117 | // BEAM PIPE IN DRIFT SPACE | |
118 | ||
119 | // -30-z_flange | |
120 | tpar[0] = 0.; | |
121 | tpar[1] = 3.; | |
122 | tpar[2] = 30; | |
123 | pMC->Gsvolu("QDT1", "TUBE", idtmed[2015], tpar, 3); | |
124 | ||
125 | tpar[0] = 2.9; | |
126 | pMC->Gsvolu("QTB1", "TUBE", idtmed[2004], tpar, 3); | |
127 | pMC->Gspos("QTB1", 1, "QDT1", 0., 0., 0., 0, "ONLY"); | |
128 | pMC->Gspos("QDT1", 1, "QQMO", 0., 0., dzmo, 0, "ONLY"); | |
129 | ||
130 | ||
131 | // 30-90 | |
132 | tpar[0] = 0.; | |
133 | tpar[1] = 3.; | |
134 | tpar[2] = 30.; | |
135 | pMC->Gsvolu("QDT2", "TUBE", idtmed[2015], tpar, 3); | |
136 | ||
137 | tpar[0] = 2.9; | |
138 | pMC->Gsvolu("QTB2", "TUBE", idtmed[2004], tpar, 3); | |
139 | pMC->Gspos("QTB2", 1, "QDT2", 0., 0., 0., 0, "ONLY"); | |
140 | pMC->Gspos("QDT2", 1, "QQMO", 0., 0., dzmo, 0, "ONLY"); | |
141 | ||
142 | // beam pipe outside absorber on the left side | |
143 | ||
144 | ||
145 | ||
146 | // -30 - Z_FLANGE | |
147 | tpar[0] = 0.; | |
148 | tpar[1] = 3.; | |
149 | tpar[2] = (z_flange - 30)/2; | |
150 | pMC->Gsvolu("QDT5", "TUBE", idtmed[2015], tpar, 3); | |
151 | ||
152 | tpar[0] = 2.9; | |
153 | zpos = -30. - tpar[2] + dzmo; | |
154 | pMC->Gsvolu("QTB5", "TUBE", idtmed[2004], tpar, 3); | |
155 | pMC->Gspos("QTB5", 1, "QDT5", 0., 0., 0., 0, "ONLY"); | |
156 | pMC->Gspos("QDT5", 1, "QQMO", 0., 0., zpos, 0, "ONLY"); | |
157 | ||
158 | // STRAIGHT STEEL PIECE | |
159 | ||
160 | zpos = -z_flange; | |
161 | r2 = 2.9; | |
162 | dr = .015; | |
163 | tpar[0] = 0.; | |
164 | tpar[1] = r2 + dr; | |
165 | tpar[2] = (zpos + 700.) / 2.; | |
166 | pMC->Gsvolu("QDT7", "TUBE", idtmed[2015], tpar, 3); | |
167 | tpar[0] = r2; | |
168 | pMC->Gsvolu("QTB7", "TUBE", idtmed[2018], tpar, 3); | |
169 | pMC->Gspos("QTB7", 1, "QDT7", 0., 0., 0., 0, "ONLY"); | |
170 | zpos = zpos - tpar[2] + dzmo; | |
171 | pMC->Gspos("QDT7", 1, "QQMO", 0., 0., zpos, 0, "ONLY"); | |
172 | ||
173 | // flange dn 63 | |
174 | ||
175 | tpar[0] = 3.; | |
176 | tpar[1] = 5.7; | |
177 | tpar[2] = 2.; | |
178 | pMC->Gsvolu("QN63", "TUBE", idtmed[2018], tpar, 3); | |
179 | zpos = tpar[2] - z_flange; | |
180 | pMC->Gspos("QN63", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
181 | ||
182 | ||
183 | // Replace Absorber or Shield by Beam-Pipe | |
184 | // in case they are not selected | |
185 | ||
b8032157 | 186 | if (gAlice->GetModule("ABSO") == 0) { |
fe4da5cc | 187 | |
188 | pMC->Gspos("QN63", 2, "ALIC", 0., 0., z_flange, 0, "ONLY"); | |
189 | r2 = 2.9; | |
190 | dr = .1; | |
191 | tpar[0] = 0.; | |
192 | tpar[1] = r2 + dr; | |
193 | tpar[2] = (z_flange - abs_d) / 2.; | |
194 | pMC->Gsvolu("QDT8", "TUBE", idtmed[2015], tpar, 3); | |
195 | tpar[0] = r2; | |
196 | pMC->Gsvolu("QTB8", "TUBE", idtmed[2004], tpar, 3); | |
197 | pMC->Gspos("QTB8", 1, "QDT8", 0., 0., 0., 0, "ONLY"); | |
198 | zpos = abs_d + tpar[2]; | |
199 | pMC->Gspos("QDT8", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
200 | dr = .015; | |
201 | tpar[0] = 0.; | |
202 | tpar[1] = r2 + dr; | |
203 | tpar[2] = (abs_l - z_flange) / 2.; | |
204 | pMC->Gsvolu("QDTS", "TUBE", idtmed[2015], tpar, 3); | |
205 | tpar[0] = r2; | |
206 | pMC->Gsvolu("QTBS", "TUBE", idtmed[2018], tpar, 3); | |
207 | pMC->Gspos("QTBS", 1, "QDTS", 0., 0., 0., 0, "ONLY"); | |
208 | zpos = tpar[2] + z_flange; | |
209 | pMC->Gspos("QDTS", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
210 | } | |
b8032157 | 211 | if (gAlice->GetModule("SHIL") == 0) { |
fe4da5cc | 212 | r2 = 2.9; |
213 | dr = .015; | |
214 | tpar[0] = 0.; | |
215 | tpar[1] = r2 + dr; | |
216 | tpar[2] = (700. - abs_l) / 2.; | |
217 | pMC->Gsvolu("QDT9", "TUBE", idtmed[2015], tpar, 3); | |
218 | tpar[0] = r2; | |
219 | pMC->Gsvolu("QTB9", "TUBE", idtmed[2018], tpar, 3); | |
220 | pMC->Gspos("QTB9", 1, "QDT9", 0., 0., 0., 0, "ONLY"); | |
221 | zpos = abs_l + tpar[2]; | |
222 | pMC->Gspos("QDT9", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
223 | } | |
224 | } | |
225 | ||
226 | //_____________________________________________________________________________ | |
b8032157 | 227 | void AliPIPEv1::DrawModule() |
fe4da5cc | 228 | { |
229 | // | |
230 | // Draw a shaded view of the Beam Pipe | |
231 | // | |
232 | ||
233 | AliMC* pMC = AliMC::GetMC(); | |
234 | ||
235 | // Set everything unseen | |
236 | pMC->Gsatt("*", "seen", -1); | |
237 | // | |
238 | // Set ALIC mother transparent | |
239 | pMC->Gsatt("ALIC","SEEN",0); | |
240 | // | |
241 | // Set the volumes visible | |
242 | pMC->Gsatt("QQMO","seen",1); | |
243 | pMC->Gsatt("QDT1","seen",1); | |
244 | pMC->Gsatt("QTB1","seen",1); | |
245 | pMC->Gsatt("QDT2","seen",1); | |
246 | pMC->Gsatt("QTB2","seen",1); | |
247 | pMC->Gsatt("QDT5","seen",1); | |
248 | pMC->Gsatt("QTB5","seen",1); | |
249 | pMC->Gsatt("QDT7","seen",1); | |
250 | pMC->Gsatt("QTB7","seen",1); | |
251 | pMC->Gsatt("QN63","seen",1); | |
252 | // | |
253 | pMC->Gdopt("hide", "on"); | |
254 | pMC->Gdopt("shad", "on"); | |
255 | pMC->Gsatt("*", "fill", 7); | |
256 | pMC->SetClipBox("."); | |
257 | pMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); | |
258 | pMC->DefaultRange(); | |
259 | pMC->Gdraw("alic", 40, 30, 0, 3, 5, .04, .04); | |
260 | pMC->Gdhead(1111, "Beam Pipe"); | |
261 | pMC->Gdman(16, 6, "MAN"); | |
262 | pMC->Gdopt("hide","off"); | |
263 | } | |
264 | ||
265 | //_____________________________________________________________________________ | |
266 | void AliPIPEv1::CreateMaterials() | |
267 | { | |
268 | // | |
269 | // Create materials for beam pipe | |
270 | // | |
271 | ||
272 | Int_t ISXFLD = gAlice->Field()->Integ(); | |
273 | Float_t SXMGMX = gAlice->Field()->Max(); | |
274 | ||
275 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
276 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
277 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
278 | ||
279 | Float_t epsil, stmin, tmaxfd, deemax, stemax; | |
280 | ||
281 | // STEEL | |
282 | ||
283 | ||
284 | // --- Define the various materials for GEANT --- | |
285 | AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7); | |
286 | AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16); | |
287 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); | |
288 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
289 | ||
290 | // **************** | |
291 | // Defines tracking media parameters. | |
292 | // Les valeurs sont commentees pour laisser le defaut | |
293 | // a GEANT (version 3-21, page CONS200), f.m. | |
294 | epsil = .001; // Tracking precision, | |
295 | stemax = -1.; // Maximum displacement for multiple scat | |
296 | tmaxfd = -20.; // Maximum angle due to field deflection | |
297 | deemax = -.3; // Maximum fractional energy loss, DLS | |
298 | stmin = -.8; | |
299 | ||
300 | // Air | |
301 | ||
302 | AliMedium(2015, "AIR_L3_US", 15, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin); | |
303 | ||
304 | // Beryllium | |
305 | ||
306 | AliMedium(2005, "BE_L3_US", 5, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin); | |
307 | ||
308 | // Vacuum | |
309 | ||
310 | AliMedium(2016, "VA_L3_US", 16, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin); | |
311 | ||
312 | // Steel | |
313 | ||
314 | AliMedium(2019, "ST_L3_US", 19, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin); | |
315 | } | |
316 |