]>
Commit | Line | Data |
---|---|---|
a9e2aefa | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
2682e810 | 15 | |
88cb7938 | 16 | /* $Id$ */ |
a9e2aefa | 17 | |
30178c30 | 18 | // --- ROOT includes --- |
19 | #include <TRandom.h> | |
20 | #include <TMath.h> | |
a713db22 | 21 | #include "AliRun.h" |
22 | ||
30178c30 | 23 | |
681d067b | 24 | // --- MUON includes --- |
a713db22 | 25 | #include "AliMUON.h" |
a9e2aefa | 26 | #include "AliMUONChamber.h" |
cbf9f933 | 27 | #include "AliMUONSegmentation.h" |
a713db22 | 28 | #include "AliMUONHit.h" |
8c343c7c | 29 | #include "AliLog.h" |
a9e2aefa | 30 | |
a9e2aefa | 31 | ClassImp(AliMUONChamber) |
32 | ||
30178c30 | 33 | AliMUONChamber::AliMUONChamber() |
34 | : TObject(), | |
35 | fId(0), | |
30178c30 | 36 | fCurrentCorrel(1), // to avoid mistakes if ChargeCorrelInit is not called |
30178c30 | 37 | fResponse(0), |
a713db22 | 38 | fMUON(0) |
d81db581 | 39 | { |
40 | // Default constructor | |
cbf9f933 | 41 | |
42 | AliDebug(1, Form("default (empty) ctor this = %p", this)); | |
d81db581 | 43 | } |
44 | ||
a713db22 | 45 | //_______________________________________________________ |
30178c30 | 46 | AliMUONChamber::AliMUONChamber(Int_t id) |
47 | : TObject(), | |
48 | fId(id), | |
30178c30 | 49 | fCurrentCorrel(1), // to avoid mistakes if ChargeCorrelInit is not called |
30178c30 | 50 | fResponse(0), |
a713db22 | 51 | fMUON(0) |
a9e2aefa | 52 | { |
a713db22 | 53 | |
54 | // muon | |
55 | fMUON = (AliMUON*)gAlice->GetModule("MUON"); | |
56 | if (!fMUON) { | |
57 | AliFatal("MUON detector not defined."); | |
58 | return; | |
59 | } | |
002920d1 | 60 | |
cbf9f933 | 61 | AliDebug(1, Form("ctor this = %p", this) ); |
30178c30 | 62 | } |
63 | ||
a713db22 | 64 | //_______________________________________________________ |
30178c30 | 65 | AliMUONChamber::AliMUONChamber(const AliMUONChamber& rChamber) |
66 | : TObject(rChamber) | |
67 | { | |
a713db22 | 68 | // Protected copy constructor |
30178c30 | 69 | |
8c343c7c | 70 | AliFatal("Not implemented."); |
a713db22 | 71 | // Dummy copy constructor |
a9e2aefa | 72 | } |
73 | ||
a713db22 | 74 | //_______________________________________________________ |
a9e2aefa | 75 | AliMUONChamber::~AliMUONChamber() |
76 | { | |
a713db22 | 77 | // Destructor |
002920d1 | 78 | |
cbf9f933 | 79 | AliDebug(1, Form("dtor this = %p", this)); |
a9e2aefa | 80 | } |
81 | ||
a713db22 | 82 | //_______________________________________________________ |
30178c30 | 83 | AliMUONChamber & AliMUONChamber::operator =(const AliMUONChamber& rhs) |
390151b8 | 84 | { |
a713db22 | 85 | // Protected assignement operator |
a9e2aefa | 86 | |
30178c30 | 87 | if (this == &rhs) return *this; |
88 | ||
8c343c7c | 89 | AliFatal("Not implemented."); |
30178c30 | 90 | |
91 | return *this; | |
92 | } | |
a9e2aefa | 93 | |
a713db22 | 94 | //_____________________________________________________ |
681d067b | 95 | void AliMUONChamber::ChargeCorrelationInit() { |
a713db22 | 96 | // Initialisation of charge correlation for current hit |
97 | // the value is stored, and then used by Disintegration | |
953daa5a | 98 | |
99 | // exponential is here to avoid eventual problems in 0 | |
100 | // factor 2 because chargecorrel is q1/q2 and not q1/qtrue | |
16d57990 | 101 | fCurrentCorrel = TMath::Exp(gRandom->Gaus(0,fResponse->ChargeCorrel()/2)); |
681d067b | 102 | } |
103 | ||
a713db22 | 104 | //_______________________________________________________ |
105 | void AliMUONChamber::DisIntegration(AliMUONHit *hit, | |
106 | Int_t& nnew,Float_t newclust[6][500]) | |
107 | { | |
108 | // | |
109 | // Generates pad hits (simulated cluster) | |
110 | // using the segmentation and the response model | |
111 | Float_t dx, dy; | |
112 | ||
113 | Float_t xhit = hit->X(); | |
114 | Float_t yhit = hit->Y(); | |
115 | Float_t zhit = hit->Z(); | |
116 | Int_t id = hit->DetElemId(); | |
117 | Float_t eloss = hit->Eloss(); | |
a9e2aefa | 118 | |
a713db22 | 119 | // |
120 | // Width of the integration area | |
121 | // | |
122 | dx=fResponse->SigmaIntegration()*fResponse->ChargeSpreadX(); | |
123 | dy=fResponse->SigmaIntegration()*fResponse->ChargeSpreadY(); | |
124 | // | |
125 | // Get pulse height from energy loss | |
126 | Float_t qtot = fResponse->IntPH(eloss); | |
127 | // | |
128 | // Loop Over Pads | |
129 | ||
130 | Float_t qp; | |
131 | nnew=0; | |
132 | ||
133 | // Cathode plane loop | |
953daa5a | 134 | for (Int_t i = 1; i <= 2; i++) { |
a713db22 | 135 | Float_t qcath = qtot * (i==1? fCurrentCorrel : 1/fCurrentCorrel); |
cbf9f933 | 136 | |
a713db22 | 137 | AliMUONGeometrySegmentation* segmentation= |
cbf9f933 | 138 | fMUON->GetSegmentation()->GetModuleSegmentation(fId, i-1); |
a713db22 | 139 | |
140 | for (segmentation->FirstPad(id, xhit, yhit, zhit, dx, dy); | |
141 | segmentation->MorePads(id); | |
142 | segmentation->NextPad(id)) | |
143 | { | |
144 | qp=fResponse->IntXY(id, segmentation); | |
145 | qp=TMath::Abs(qp); | |
146 | // | |
147 | // | |
148 | if (qp > 1.e-4) | |
149 | { | |
150 | if (nnew >= 500) // Perform a bounds check on nnew since it is assumed | |
151 | // newclust only contains 500 elements. | |
152 | { | |
153 | AliError("Limit of 500 pad responses reached."); | |
154 | return; | |
155 | }; | |
156 | // | |
157 | // --- store signal information | |
158 | newclust[0][nnew]=qcath; // total charge | |
159 | newclust[1][nnew]=segmentation->Ix(); // ix-position of pad | |
160 | newclust[2][nnew]=segmentation->Iy(); // iy-position of pad | |
161 | newclust[3][nnew]=qp * qcath; // charge on pad | |
162 | newclust[4][nnew]=segmentation->ISector(); // sector id | |
163 | newclust[5][nnew]=(Float_t) i; // counter | |
164 | nnew++; | |
165 | ||
166 | } | |
167 | } // Pad loop | |
168 | } // Cathode plane loop | |
169 | } |