Variable number of modules introduced
[u/mrichter/AliRoot.git] / PMD / AliPMDv1.cxx
CommitLineData
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
18static Int_t maxbox, kdet;
19static Float_t thmin,thmax,zdist,zdist1,thlow,thhigh;
20
21ClassImp(AliPMDv1)
22
23//_____________________________________________________________________________
24AliPMDv1::AliPMDv1()
25{
26 //
27 // Default constructor
28 //
29 fMedSens=0;
30}
31
32//_____________________________________________________________________________
33AliPMDv1::AliPMDv1(const char *name, const char *title)
34 : AliPMD(name,title)
35{
36 //
37 // Standard constructor
38 //
39 fMedSens=0;
40}
41//_____________________________________________________________________________
42void 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//_____________________________________________________________________________
62void 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
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//_____________________________________________________________________________
196void 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.;
ad51aeb0 235 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 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//_____________________________________________________________________________
364void 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//_____________________________________________________________________________
396void 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
ad51aeb0 427 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 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$", ag, zg, dg, 2, wg);
459
460 // Define tracking media
ad51aeb0 461 AliMedium(1, "Pb conv.$", 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);
6edc06da 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//_____________________________________________________________________________
527void 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 //
ad51aeb0 547 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 548 fMedSens=idtmed[605-1];
549}
550
551//_____________________________________________________________________________
552void 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