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33a52e55 | 1 | /************************************************************************** |
2 | * Copyright(c) 2007, 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 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | // | |
18 | // Base class for the EMCAL simulation parameters. | |
19 | // | |
20 | // | |
21 | */ | |
22 | ||
23 | // --- Root header files --- | |
24 | #include "TMath.h" | |
25 | // --- AliRoot header files --- | |
26 | #include "AliEMCALSimParam.h" | |
27 | #include "AliLog.h" | |
28 | ||
29 | ||
30 | ClassImp(AliEMCALSimParam) | |
31 | ||
32 | AliEMCALSimParam * AliEMCALSimParam::fgSimParam = 0 ; | |
33 | //----------------------------------------------------------------------------- | |
34 | AliEMCALSimParam::AliEMCALSimParam() : | |
35 | TNamed(), | |
36 | fDigitThreshold(0), | |
37 | fMeanPhotonElectron(0), | |
38 | fPinNoise(0), | |
df5cea6b | 39 | fTimeNoise(0), |
f0a6dc6f | 40 | fTimeDelay(0), |
a2f8e711 | 41 | fTimeResolutionPar0(0), |
42 | fTimeResolutionPar1(0), | |
33a52e55 | 43 | fNADCEC(0),//Digitizer |
44 | fA(0.), | |
45 | fB(0.), | |
46 | fECPrimThreshold(0.) //SDigitizer | |
47 | { | |
e42f0a9d | 48 | //Constructor |
49 | ||
50 | //Parameters in Digitizer | |
51 | fMeanPhotonElectron = 4400; // electrons per GeV | |
52 | fPinNoise = 0.012; // APD noise in GeV from analysis test beam data | |
53 | fDigitThreshold = 3; // 3 ADC counts not anymore cut in energy: //fPinNoise * 3; // 3 * sigma | |
df5cea6b | 54 | fTimeNoise = 1.28e-5; // time noise in s |
e42f0a9d | 55 | fTimeResolutionPar0 = 0.26666; // From F. Blanco: 0.51639^2 |
56 | fTimeResolutionPar1 = 1.45861; // From F. Blanco: 1.20773^2 | |
57 | fTimeDelay = 600e-9 ; // 600 ns | |
f0a6dc6f | 58 | |
e42f0a9d | 59 | fNADCEC = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536 |
33a52e55 | 60 | |
e42f0a9d | 61 | //SDigitizer |
62 | fA = 0; | |
63 | fB = 1.e+6; // Dynamic range now 2 TeV | |
64 | fECPrimThreshold = 0.05; // GeV // threshold for deposit energy of hit | |
33a52e55 | 65 | |
66 | } | |
67 | ||
68 | ||
69 | //----------------------------------------------------------------------------- | |
70 | AliEMCALSimParam::AliEMCALSimParam(const AliEMCALSimParam& ): | |
71 | TNamed(), | |
72 | fDigitThreshold(0), | |
73 | fMeanPhotonElectron(0), | |
74 | fPinNoise(0), | |
df5cea6b | 75 | fTimeNoise(0), |
f0a6dc6f | 76 | fTimeDelay(0), |
a2f8e711 | 77 | fTimeResolutionPar0(0), |
78 | fTimeResolutionPar1(0), | |
33a52e55 | 79 | fNADCEC(0), |
80 | fA(0.), | |
81 | fB(0.), | |
82 | fECPrimThreshold(0.)//SDigitizer | |
83 | { | |
84 | //Copy constructor. | |
85 | AliError("Should not use copy constructor for singleton") ; | |
86 | ||
87 | fgSimParam = this ; | |
88 | ||
89 | } | |
90 | ||
91 | //----------------------------------------------------------------------------- | |
92 | AliEMCALSimParam * AliEMCALSimParam::GetInstance(){ | |
93 | // Get Instance | |
94 | ||
e42f0a9d | 95 | if(!fgSimParam){ |
96 | fgSimParam = new AliEMCALSimParam() ; | |
97 | } | |
98 | ||
99 | return fgSimParam ; | |
33a52e55 | 100 | |
101 | } | |
102 | ||
103 | //----------------------------------------------------------------------------- | |
104 | AliEMCALSimParam& AliEMCALSimParam::operator = (const AliEMCALSimParam& simParam) | |
105 | { | |
106 | //Assignment operator. | |
107 | ||
108 | if(this != &simParam) { | |
109 | AliError("Should not use operator= for singleton\n") ; | |
110 | } | |
111 | ||
112 | return *this; | |
113 | } | |
114 | ||
115 | //----------------------------------------------------------------------------- | |
116 | void AliEMCALSimParam::Print(Option_t *) const | |
117 | { | |
e42f0a9d | 118 | // Print simulation parameters to stdout |
119 | ||
120 | printf("=== Parameters in Digitizer === \n"); | |
121 | printf("\t Electronics noise in EMC (fPinNoise) = %f, (fTimeNoise) = %e\n", fPinNoise, fTimeNoise) ; | |
122 | printf("\t Threshold in EMC (fDigitThreshold) = %d\n", fDigitThreshold) ; | |
123 | printf("\t Time Resolution (fTimeResolutionPar0) = %g\n", fTimeResolutionPar0) ; | |
124 | printf("\t Time Resolution (fTimeResolutionPar1) = %g\n", fTimeResolutionPar1) ; | |
125 | printf("\t Time Delay (fTimeDelay) = %g\n", fTimeDelay) ; | |
126 | printf("\t Mean Photon-Electron (fMeanPhotonElectron) = %d\n", fMeanPhotonElectron) ; | |
127 | printf("\t N channels in EC section ADC (fNADCEC) = %d\n", fNADCEC) ; | |
128 | ||
129 | printf("\n"); | |
130 | ||
131 | printf("=== Parameters in SDigitizer === \n"); | |
132 | printf("\t sdigitization parameters A = %f\n", fA); | |
133 | printf("\t B = %f\n", fB); | |
134 | printf("\t Threshold for EC Primary assignment = %f\n", fECPrimThreshold); | |
33a52e55 | 135 | |
136 | } | |
137 |