/* $Id$ */
-///////////////////////////////////////////////////////////////////////////////
-// //
-// Class containing constant simulation parameters //
-// //
-// Request an instance with AliTRDSimParam::Instance() //
-// Then request the needed values //
-// //
-///////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////
+// //
+// Class containing constant simulation parameters //
+// //
+// Request an instance with AliTRDSimParam::Instance() //
+// Then request the needed values //
+// //
+////////////////////////////////////////////////////////////////////////////
#include <TMath.h>
#include "AliRun.h"
#include "AliTRDSimParam.h"
+#include "AliTRDCommonParam.h"
+#include "AliLog.h"
ClassImp(AliTRDSimParam)
-AliTRDSimParam* AliTRDSimParam::fgInstance = 0;
-Bool_t AliTRDSimParam::fgTerminated = kFALSE;
+AliTRDSimParam *AliTRDSimParam::fgInstance = 0;
+Bool_t AliTRDSimParam::fgTerminated = kFALSE;
//_ singleton implementation __________________________________________________
AliTRDSimParam* AliTRDSimParam::Instance()
// Returns an instance of this class, it is created if neccessary
//
- if (fgTerminated != kFALSE)
+ if (fgTerminated != kFALSE) {
return 0;
+ }
- if (fgInstance == 0)
+ if (fgInstance == 0) {
fgInstance = new AliTRDSimParam();
-
+ }
+
return fgInstance;
+
}
+//_ singleton implementation __________________________________________________
void AliTRDSimParam::Terminate()
{
//
// Singleton implementation
- // Deletes the instance of this class and sets the terminated flag, instances cannot be requested anymore
+ // Deletes the instance of this class and sets the terminated flag,
+ // instances cannot be requested anymore
// This function can be called several times.
//
fgTerminated = kTRUE;
- if (fgInstance != 0)
- {
+ if (fgInstance != 0) {
delete fgInstance;
fgInstance = 0;
}
+
}
//_____________________________________________________________________________
AliTRDSimParam::AliTRDSimParam()
+ :TObject()
+ ,fGasGain(0.0)
+ ,fNoise(0.0)
+ ,fChipGain(0.0)
+ ,fADCoutRange(0.0)
+ ,fADCinRange(0.0)
+ ,fADCbaseline(0)
+ ,fDiffusionOn(kFALSE)
+ ,fElAttachOn(kFALSE)
+ ,fElAttachProp(0.0)
+ ,fTRFOn(kFALSE)
+ ,fTRFsmp(0)
+ ,fTRFbin(0)
+ ,fTRFlo(0.0)
+ ,fTRFhi(0.0)
+ ,fTRFwid(0.0)
+ ,fCTOn(kFALSE)
+ ,fCTsmp(0)
+ ,fPadCoupling(0.0)
+ ,fTimeCoupling(0.0)
+ ,fTimeStructOn(kFALSE)
+ ,fPRFOn(kFALSE)
+ ,fNTimeBins(0)
{
//
- // default constructor
+ // Default constructor
//
- fGasGain = 0.0;
- fNoise = 0.0;
- fChipGain = 0.0;
-
- fADCoutRange = 0.0;
- fADCinRange = 0.0;
- fADCthreshold = 0;
- fADCbaseline = 0;
-
- fDiffusionOn = kFALSE;
-
- fElAttachOn = kFALSE;
- fElAttachProp = 0.0;
-
- fTRFOn = kFALSE;
- fTRFsmp = 0;
- fTRFbin = 0;
- fTRFlo = 0.0;
- fTRFhi = 0.0;
- fTRFwid = 0.0;
-
- fCTOn = kFALSE;
- fCTsmp = 0;
-
- fTCOn = kFALSE;
-
- fTCnexp = 0;
-
- fAnodeWireOffset = 0.0;
- fPadCoupling = 0.0;
- fTimeCoupling = 0.0;
- fTimeStructOn = kFALSE;
-
Init();
+
}
//_____________________________________________________________________________
void AliTRDSimParam::Init()
{
//
- // default initializiation
+ // Default initializiation
//
// The default parameter for the digitization
- fGasGain = 4000.;
- fChipGain = 12.4;
- fNoise = 1000.;
- fADCoutRange = 1023.; // 10-bit ADC
- fADCinRange = 2000.; // 2V input range
- fADCthreshold = 1;
- fADCbaseline = 0;
+ fGasGain = 4000.0;
+ fChipGain = 12.4;
+ fNoise = 1250.0;
+ fADCoutRange = 1023.0; // 10-bit ADC
+ fADCinRange = 2000.0; // 2V input range
+ fADCbaseline = 10;
// Diffusion on
- fDiffusionOn = kTRUE;
+ fDiffusionOn = kTRUE;
// Propability for electron attachment
- fElAttachOn = kFALSE;
- fElAttachProp = 0.0;
+ fElAttachOn = kFALSE;
+ fElAttachProp = 0.0;
// The time response function
- fTRFOn = kTRUE;
+ fTRFOn = kTRUE;
// The cross talk
- fCTOn = kTRUE;
-
- // The tail cancelation
- fTCOn = kTRUE;
-
- // The number of exponentials
- fTCnexp = 1;
+ fCTOn = kTRUE;
// The pad coupling factor
- //fPadCoupling = 0.3;
- // Use 0.46 instead which reproduces better the test beam
- // data, even tough it is not understood why.
- fPadCoupling = 0.46;
+ // Use 0.46, instead of the theroetical value 0.3, since it reproduces better
+ // the test beam data, even tough it is not understood why.
+ fPadCoupling = 0.46;
// The time coupling factor (same number as for the TPC)
- fTimeCoupling = 0.4;
-
- // Distance of first Anode wire from first pad edge
- fAnodeWireOffset = 0.25;
+ fTimeCoupling = 0.4;
// Use drift time maps
- fTimeStructOn = kTRUE;
+ fTimeStructOn = kTRUE;
+ // The pad response function
+ fPRFOn = kTRUE;
+
+ // The number of time bins
+ fNTimeBins = 30;
+
ReInit();
-};
+
+}
//_____________________________________________________________________________
AliTRDSimParam::~AliTRDSimParam()
{
//
- // destructor
+ // Destructor
//
if (fTRFsmp) {
delete [] fCTsmp;
fCTsmp = 0;
}
-};
+
+}
//_____________________________________________________________________________
-AliTRDSimParam::AliTRDSimParam(const AliTRDSimParam &p):TObject(p)
+AliTRDSimParam::AliTRDSimParam(const AliTRDSimParam &p)
+ :TObject(p)
+ ,fGasGain(p.fGasGain)
+ ,fNoise(p.fNoise)
+ ,fChipGain(p.fChipGain)
+ ,fADCoutRange(p.fADCoutRange)
+ ,fADCinRange(p.fADCinRange)
+ ,fADCbaseline(p.fADCbaseline)
+ ,fDiffusionOn(p.fDiffusionOn)
+ ,fElAttachOn(p.fElAttachOn)
+ ,fElAttachProp(p.fElAttachProp)
+ ,fTRFOn(p.fTRFOn)
+ ,fTRFsmp(0)
+ ,fTRFbin(p.fTRFbin)
+ ,fTRFlo(p.fTRFlo)
+ ,fTRFhi(p.fTRFhi)
+ ,fTRFwid(p.fTRFwid)
+ ,fCTOn(p.fCTOn)
+ ,fCTsmp(0)
+ ,fPadCoupling(p.fPadCoupling)
+ ,fTimeCoupling(p.fTimeCoupling)
+ ,fTimeStructOn(p.fTimeStructOn)
+ ,fPRFOn(p.fPRFOn)
+ ,fNTimeBins(p.fNTimeBins)
{
//
- // copy constructor
+ // Copy constructor
//
- ((AliTRDSimParam &) p).Copy(*this);
-}
+ Int_t iBin = 0;
+ fTRFsmp = new Float_t[fTRFbin];
+ for (iBin = 0; iBin < fTRFbin; iBin++) {
+ fTRFsmp[iBin] = ((AliTRDSimParam &) p).fTRFsmp[iBin];
+ }
+
+ fCTsmp = new Float_t[fTRFbin];
+ for (iBin = 0; iBin < fTRFbin; iBin++) {
+ fCTsmp[iBin] = ((AliTRDSimParam &) p).fCTsmp[iBin];
+ }
+
+}
//_____________________________________________________________________________
AliTRDSimParam &AliTRDSimParam::operator=(const AliTRDSimParam &p)
// Assignment operator
//
- if (this != &p) ((AliTRDSimParam &) p).Copy(*this);
+ if (this != &p) {
+ ((AliTRDSimParam &) p).Copy(*this);
+ }
+
return *this;
+
}
//_____________________________________________________________________________
// Copy function
//
- AliTRDSimParam* target = dynamic_cast<AliTRDSimParam*> (&p);
- if (!target)
+ AliTRDSimParam *target = dynamic_cast<AliTRDSimParam *> (&p);
+ if (!target) {
return;
+ }
target->fGasGain = fGasGain;
- //target->fField = fField;
target->fNoise = fNoise;
- target->fChipGain = fChipGain;
-
+ target->fChipGain = fChipGain;
target->fADCoutRange = fADCoutRange;
target->fADCinRange = fADCinRange;
- target->fADCthreshold = fADCthreshold;
target->fADCbaseline = fADCbaseline;
-
target->fDiffusionOn = fDiffusionOn;
-
target->fElAttachOn = fElAttachOn;
target->fElAttachProp = fElAttachProp;
-
target->fTRFOn = fTRFOn;
- if (target->fTRFsmp)
- delete[] target->fTRFsmp;
- target->fTRFsmp = new Float_t[fTRFbin];
- for (Int_t iBin = 0; iBin < fTRFbin; iBin++) {
- target->fTRFsmp[iBin] = fTRFsmp[iBin];
- }
target->fTRFbin = fTRFbin;
target->fTRFlo = fTRFlo;
target->fTRFhi = fTRFhi;
target->fTRFwid = fTRFwid;
-
target->fCTOn = fCTOn;
- if (target->fCTsmp)
+ target->fPadCoupling = fPadCoupling;
+ target->fTimeCoupling = fTimeCoupling;
+ target->fPRFOn = fPRFOn;
+ target->fNTimeBins = fNTimeBins;
+
+ if (target->fTRFsmp) {
+ delete[] target->fTRFsmp;
+ }
+ target->fTRFsmp = new Float_t[fTRFbin];
+ for (Int_t iBin = 0; iBin < fTRFbin; iBin++) {
+ target->fTRFsmp[iBin] = fTRFsmp[iBin];
+ }
+
+ if (target->fCTsmp) {
delete[] target->fCTsmp;
+ }
target->fCTsmp = new Float_t[fTRFbin];
for (Int_t iBin = 0; iBin < fTRFbin; iBin++) {
target->fCTsmp[iBin] = fCTsmp[iBin];
}
- target->fTCOn = fTCOn;
- target->fTCnexp = fTCnexp;
-
- target->fAnodeWireOffset = fAnodeWireOffset;
- target->fPadCoupling = fPadCoupling;
- target->fTimeCoupling = fTimeCoupling;
}
//_____________________________________________________________________________
// Reinitializes the parameter class after a change
//
- // The range and the binwidth for the sampled TRF
- fTRFbin = 100;
- // Start 0.2 mus before the signal
- fTRFlo = -0.2;
- // End the maximum drift time after the signal
- fTRFhi = 2.2;
- //
+ if (AliTRDCommonParam::Instance()->IsXenon()) {
+ // The range and the binwidth for the sampled TRF
+ fTRFbin = 200;
+ // Start 0.2 mus before the signal
+ fTRFlo = -0.4;
+ // End the maximum drift time after the signal
+ fTRFhi = 3.58;
+ // Standard gas gain
+ fGasGain = 4000.0;
+ }
+ else if (AliTRDCommonParam::Instance()->IsArgon()) {
+ // The range and the binwidth for the sampled TRF
+ fTRFbin = 50;
+ // Start 0.2 mus before the signal
+ fTRFlo = 0.02;
+ // End the maximum drift time after the signal
+ fTRFhi = 1.98;
+ // Higher gas gain
+ fGasGain = 8000.0;
+ }
+ else {
+ AliFatal("Not a valid gas mixture!");
+ exit(1);
+ }
fTRFwid = (fTRFhi - fTRFlo) / ((Float_t) fTRFbin);
// Create the sampled TRF
SampleTRF();
+
}
//_____________________________________________________________________________
void AliTRDSimParam::SampleTRF()
{
//
- // Samples the time response function
- //
- // New TRF from Venelin Angelov, simulated with CADENCE
- // Pad-ground capacitance = 25 pF
- // Pad-pad cross talk capacitance = 6 pF
+ // Samples the new time response function.
//
- Int_t ipos1;
- Int_t ipos2;
- Float_t diff;
-
- const Int_t kNpasa = 252;
-
- Float_t time[kNpasa] = { -0.220000, -0.210000, -0.200000, -0.190000
- , -0.180000, -0.170000, -0.160000, -0.150000
- , -0.140000, -0.130000, -0.120000, -0.110000
- , -0.100000, -0.090000, -0.080000, -0.070000
- , -0.060000, -0.050000, -0.040000, -0.030000
- , -0.020000, -0.010000, -0.000000, 0.010000
- , 0.020000, 0.030000, 0.040000, 0.050000
- , 0.060000, 0.070000, 0.080000, 0.090000
- , 0.100000, 0.110000, 0.120000, 0.130000
- , 0.140000, 0.150000, 0.160000, 0.170000
- , 0.180000, 0.190000, 0.200000, 0.210000
- , 0.220000, 0.230000, 0.240000, 0.250000
- , 0.260000, 0.270000, 0.280000, 0.290000
- , 0.300000, 0.310000, 0.320000, 0.330000
- , 0.340000, 0.350000, 0.360000, 0.370000
- , 0.380000, 0.390000, 0.400000, 0.410000
- , 0.420000, 0.430000, 0.440000, 0.450000
- , 0.460000, 0.470000, 0.480000, 0.490000
- , 0.500000, 0.510000, 0.520000, 0.530000
- , 0.540000, 0.550000, 0.560000, 0.570000
- , 0.580000, 0.590000, 0.600000, 0.610000
- , 0.620000, 0.630000, 0.640000, 0.650000
- , 0.660000, 0.670000, 0.680000, 0.690000
- , 0.700000, 0.710000, 0.720000, 0.730000
- , 0.740000, 0.750000, 0.760000, 0.770000
- , 0.780000, 0.790000, 0.800000, 0.810000
- , 0.820000, 0.830000, 0.840000, 0.850000
- , 0.860000, 0.870000, 0.880000, 0.890000
- , 0.900000, 0.910000, 0.920000, 0.930000
- , 0.940000, 0.950000, 0.960000, 0.970000
- , 0.980000, 0.990000, 1.000000, 1.010000
- , 1.020000, 1.030000, 1.040000, 1.050000
- , 1.060000, 1.070000, 1.080000, 1.090000
- , 1.100000, 1.110000, 1.120000, 1.130000
- , 1.140000, 1.150000, 1.160000, 1.170000
- , 1.180000, 1.190000, 1.200000, 1.210000
- , 1.220000, 1.230000, 1.240000, 1.250000
- , 1.260000, 1.270000, 1.280000, 1.290000
- , 1.300000, 1.310000, 1.320000, 1.330000
- , 1.340000, 1.350000, 1.360000, 1.370000
- , 1.380000, 1.390000, 1.400000, 1.410000
- , 1.420000, 1.430000, 1.440000, 1.450000
- , 1.460000, 1.470000, 1.480000, 1.490000
- , 1.500000, 1.510000, 1.520000, 1.530000
- , 1.540000, 1.550000, 1.560000, 1.570000
- , 1.580000, 1.590000, 1.600000, 1.610000
- , 1.620000, 1.630000, 1.640000, 1.650000
- , 1.660000, 1.670000, 1.680000, 1.690000
- , 1.700000, 1.710000, 1.720000, 1.730000
- , 1.740000, 1.750000, 1.760000, 1.770000
- , 1.780000, 1.790000, 1.800000, 1.810000
- , 1.820000, 1.830000, 1.840000, 1.850000
- , 1.860000, 1.870000, 1.880000, 1.890000
- , 1.900000, 1.910000, 1.920000, 1.930000
- , 1.940000, 1.950000, 1.960000, 1.970000
- , 1.980000, 1.990000, 2.000000, 2.010000
- , 2.020000, 2.030000, 2.040000, 2.050000
- , 2.060000, 2.070000, 2.080000, 2.090000
- , 2.100000, 2.110000, 2.120000, 2.130000
- , 2.140000, 2.150000, 2.160000, 2.170000
- , 2.180000, 2.190000, 2.200000, 2.210000
- , 2.220000, 2.230000, 2.240000, 2.250000
- , 2.260000, 2.270000, 2.280000, 2.290000 };
-
- Float_t signal[kNpasa] = { 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000396
- , 0.005096, 0.022877, 0.061891, 0.126614
- , 0.215798, 0.324406, 0.444507, 0.566817
- , 0.683465, 0.787089, 0.873159, 0.937146
- , 0.979049, 0.999434, 1.000000, 0.983579
- , 0.954134, 0.913364, 0.866365, 0.813703
- , 0.759910, 0.706116, 0.653454, 0.603624
- , 0.556625, 0.514156, 0.475085, 0.439977
- , 0.408834, 0.380578, 0.355549, 0.333352
- , 0.313647, 0.296093, 0.280351, 0.266195
- , 0.253397, 0.241789, 0.231257, 0.221574
- , 0.212627, 0.204417, 0.196772, 0.189581
- , 0.182956, 0.176784, 0.171008, 0.165515
- , 0.160419, 0.155606, 0.151076, 0.146716
- , 0.142639, 0.138845, 0.135221, 0.131767
- , 0.128482, 0.125368, 0.122424, 0.119592
- , 0.116931, 0.114326, 0.111891, 0.109513
- , 0.107248, 0.105096, 0.103058, 0.101019
- , 0.099151, 0.097282, 0.095527, 0.093715
- , 0.092129, 0.090544, 0.088958, 0.087429
- , 0.086014, 0.084598, 0.083239, 0.081880
- , 0.080634, 0.079388, 0.078143, 0.077010
- , 0.075878, 0.074745, 0.073669, 0.072593
- , 0.071574, 0.070612, 0.069649, 0.068686
- , 0.067780, 0.066874, 0.066025, 0.065176
- , 0.064326, 0.063533, 0.062684, 0.061948
- , 0.061212, 0.060419, 0.059740, 0.059003
- , 0.058324, 0.057644, 0.057022, 0.056342
- , 0.055663, 0.055096, 0.054473, 0.053851
- , 0.053284, 0.052718, 0.052152, 0.051585
- , 0.051019, 0.050566, 0.050000, 0.049490
- , 0.048981, 0.048528, 0.048018, 0.047508
- , 0.047055, 0.046602, 0.046149, 0.045696
- , 0.045300, 0.044904, 0.044451, 0.044054
- , 0.043658, 0.043205, 0.042865, 0.042469
- , 0.042072, 0.041733, 0.041336, 0.040997
- , 0.040657, 0.040260, 0.039921, 0.039581
- , 0.039241, 0.038958, 0.038618, 0.038335
- , 0.037995, 0.037656, 0.037373, 0.037089
- , 0.036806, 0.036467, 0.036183, 0.035900
- , 0.035617, 0.035334, 0.035108, 0.034824
- , 0.034541, 0.034315, 0.034032, 0.033805
- , 0.033522, 0.033296, 0.033069, 0.032786
- , 0.032559, 0.032333, 0.032106, 0.031880
- , 0.031653, 0.031427, 0.031200, 0.030974
- , 0.030804, 0.030578, 0.030351, 0.030125
- , 0.029955, 0.029785, 0.029558, 0.029332
- , 0.029162, 0.028992, 0.028766, 0.028596
- , 0.028426, 0.028199, 0.028086, 0.027860
- , 0.027746, 0.027633, 0.027463, 0.027293
- , 0.027180, 0.027067, 0.026954, 0.026954
- , 0.026840, 0.026727, 0.026727, 0.026614
- , 0.026614, 0.026614, 0.026557, 0.026501
- , 0.026501, 0.026501, 0.026501, 0.026501
- , 0.026501, 0.026501, 0.026501, 0.026387
- , 0.026387, 0.026387, 0.026387, 0.026387
- , 0.026387, 0.026387, 0.026387, 0.026387
- , 0.026387, 0.026387, 0.026387, 0.026387
- , 0.026387, 0.026274, 0.026274, 0.026274
- , 0.026274, 0.026274, 0.026274, 0.026274
- , 0.026274, 0.026274, 0.026274, 0.026274
- , 0.026274, 0.026274, 0.026274, 0.026161 };
-
- Float_t xtalk[kNpasa] = { 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000113
- , 0.000793, 0.003058, 0.007305, 0.013194
- , 0.019706, 0.025821, 0.030634, 0.033465
- , 0.034145, 0.032729, 0.029615, 0.025198
- , 0.019989, 0.014496, 0.009003, 0.003964
- , -0.000510, -0.004190, -0.007191, -0.009400
- , -0.010872, -0.011835, -0.012288, -0.012288
- , -0.012005, -0.011495, -0.010872, -0.010136
- , -0.009343, -0.008607, -0.007871, -0.007191
- , -0.006512, -0.005946, -0.005379, -0.004926
- , -0.004473, -0.004077, -0.003737, -0.003398
- , -0.003114, -0.002831, -0.002605, -0.002378
- , -0.002208, -0.002039, -0.001869, -0.001699
- , -0.001585, -0.001472, -0.001359, -0.001246
- , -0.001132, -0.001019, -0.001019, -0.000906
- , -0.000906, -0.000793, -0.000793, -0.000680
- , -0.000680, -0.000680, -0.000566, -0.000566
- , -0.000566, -0.000566, -0.000453, -0.000453
- , -0.000453, -0.000453, -0.000453, -0.000453
- , -0.000340, -0.000340, -0.000340, -0.000340
- , -0.000340, -0.000340, -0.000340, -0.000340
- , -0.000340, -0.000340, -0.000340, -0.000340
- , -0.000340, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000227
- , -0.000227, -0.000227, -0.000227, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, -0.000113
- , -0.000113, -0.000113, -0.000113, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000 };
-
- // increase CrossTalk to measurements
- for (Int_t ipasa = 0; ipasa < kNpasa; ipasa++) {
- xtalk[ipasa] *= 1.75;
+ Int_t ipasa = 0;
+
+ // Xenon
+ // From Antons measurements with Fe55 source, adjusted by C. Lippmann.
+ // time bins are -0.4, -0.38, -0.36, ...., 3.54, 3.56, 3.58 microseconds
+ const Int_t kNpasa = 200; // kNpasa should be equal to fTRFbin!
+ Float_t xtalk[kNpasa];
+ Float_t signal[kNpasa] = { 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000
+ , 0.0002, 0.0007, 0.0026, 0.0089, 0.0253, 0.0612, 0.1319
+ , 0.2416, 0.3913, 0.5609, 0.7295, 0.8662, 0.9581, 1.0000
+ , 0.9990, 0.9611, 0.8995, 0.8269, 0.7495, 0.6714, 0.5987
+ , 0.5334, 0.4756, 0.4249, 0.3811, 0.3433, 0.3110, 0.2837
+ , 0.2607, 0.2409, 0.2243, 0.2099, 0.1974, 0.1868, 0.1776
+ , 0.1695, 0.1627, 0.1566, 0.1509, 0.1457, 0.1407, 0.1362
+ , 0.1317, 0.1274, 0.1233, 0.1196, 0.1162, 0.1131, 0.1102
+ , 0.1075, 0.1051, 0.1026, 0.1004, 0.0979, 0.0956, 0.0934
+ , 0.0912, 0.0892, 0.0875, 0.0858, 0.0843, 0.0829, 0.0815
+ , 0.0799, 0.0786, 0.0772, 0.0757, 0.0741, 0.0729, 0.0718
+ , 0.0706, 0.0692, 0.0680, 0.0669, 0.0655, 0.0643, 0.0630
+ , 0.0618, 0.0607, 0.0596, 0.0587, 0.0576, 0.0568, 0.0558
+ , 0.0550, 0.0541, 0.0531, 0.0522, 0.0513, 0.0505, 0.0497
+ , 0.0490, 0.0484, 0.0474, 0.0465, 0.0457, 0.0449, 0.0441
+ , 0.0433, 0.0425, 0.0417, 0.0410, 0.0402, 0.0395, 0.0388
+ , 0.0381, 0.0374, 0.0368, 0.0361, 0.0354, 0.0348, 0.0342
+ , 0.0336, 0.0330, 0.0324, 0.0318, 0.0312, 0.0306, 0.0301
+ , 0.0296, 0.0290, 0.0285, 0.0280, 0.0275, 0.0270, 0.0265
+ , 0.0260, 0.0256, 0.0251, 0.0246, 0.0242, 0.0238, 0.0233
+ , 0.0229, 0.0225, 0.0221, 0.0217, 0.0213, 0.0209, 0.0206
+ , 0.0202, 0.0198, 0.0195, 0.0191, 0.0188, 0.0184, 0.0181
+ , 0.0178, 0.0175, 0.0171, 0.0168, 0.0165, 0.0162, 0.0159
+ , 0.0157, 0.0154, 0.0151, 0.0148, 0.0146, 0.0143, 0.0140
+ , 0.0138, 0.0135, 0.0133, 0.0131, 0.0128, 0.0126, 0.0124
+ , 0.0121, 0.0119, 0.0120, 0.0115, 0.0113, 0.0111, 0.0109
+ , 0.0107, 0.0105, 0.0103, 0.0101, 0.0100, 0.0098, 0.0096
+ , 0.0094, 0.0092, 0.0091, 0.0089, 0.0088, 0.0086, 0.0084
+ , 0.0083, 0.0081, 0.0080, 0.0078 };
+ signal[0] = 0.0;
+ signal[1] = 0.0;
+ signal[2] = 0.0;
+ // With undershoot, positive peak corresponds to ~3% of the main signal:
+ for (ipasa = 3; ipasa < kNpasa; ipasa++) {
+ xtalk[ipasa] = 0.2 * (signal[ipasa-2] - signal[ipasa-3]);
+ }
+ xtalk[0] = 0.0;
+ xtalk[1] = 0.0;
+ xtalk[2] = 0.0;
+
+ // Argon
+ // Ar measurement with Fe55 source by Anton
+ // time bins are 0.02, 0.06, 0.10, ...., 1.90, 1.94, 1.98 microseconds
+ const Int_t kNpasaAr = 50;
+ Float_t xtalkAr[kNpasaAr];
+ Float_t signalAr[kNpasaAr] = { -0.01, 0.01, 0.00, 0.00, 0.01
+ , -0.01, 0.01, 2.15, 22.28, 55.53
+ , 68.52, 58.21, 40.92, 27.12, 18.49
+ , 13.42, 10.48, 8.67, 7.49, 6.55
+ , 5.71, 5.12, 4.63, 4.22, 3.81
+ , 3.48, 3.20, 2.94, 2.77, 2.63
+ , 2.50, 2.37, 2.23, 2.13, 2.03
+ , 1.91, 1.83, 1.75, 1.68, 1.63
+ , 1.56, 1.49, 1.50, 1.49, 1.29
+ , 1.19, 1.21, 1.21, 1.20, 1.10 };
+ // Normalization to maximum
+ for (ipasa = 0; ipasa < kNpasaAr; ipasa++) {
+ signalAr[ipasa] /= 68.52;
}
+ signalAr[0] = 0.0;
+ signalAr[1] = 0.0;
+ signalAr[2] = 0.0;
+ // With undershoot, positive peak corresponds to ~3% of the main signal:
+ for (ipasa = 3; ipasa < kNpasaAr; ipasa++) {
+ xtalkAr[ipasa] = 0.2 * (signalAr[ipasa-2] - signalAr[ipasa-3]);
+ }
+ xtalkAr[0] = 0.0;
+ xtalkAr[1] = 0.0;
+ xtalkAr[2] = 0.0;
- if (fTRFsmp) delete [] fTRFsmp;
+ if (fTRFsmp) {
+ delete [] fTRFsmp;
+ }
fTRFsmp = new Float_t[fTRFbin];
- if (fCTsmp) delete [] fCTsmp;
+
+ if (fCTsmp) {
+ delete [] fCTsmp;
+ }
fCTsmp = new Float_t[fTRFbin];
- Float_t loTRF = TMath::Max(fTRFlo, time[0]);
- Float_t hiTRF = TMath::Min(fTRFhi, time[kNpasa-1]);
- Float_t binWidth = (hiTRF - loTRF) / ((Float_t) fTRFbin);
+ if (AliTRDCommonParam::Instance()->IsXenon()) {
+ if (fTRFbin != kNpasa) {
+ AliError("Array mismatch (xenon)\n\n");
+ }
+ }
+ else if (AliTRDCommonParam::Instance()->IsArgon()) {
+ if (fTRFbin != kNpasaAr) {
+ AliError("Array mismatch (argon)\n\n");
+ }
+ }
- // Take the linear interpolation
for (Int_t iBin = 0; iBin < fTRFbin; iBin++) {
-
- Float_t bin = (((Float_t) iBin) + 0.5) * binWidth + loTRF;
- ipos1 = ipos2 = 0;
- diff = 0;
- do {
- diff = bin - time[ipos2++];
- } while (diff > 0);
- ipos2--;
- if (ipos2 >= kNpasa) ipos2 = kNpasa - 1;
- ipos1 = ipos2 - 1;
-
- fTRFsmp[iBin] = signal[ipos2]
- + diff * (signal[ipos2] - signal[ipos1])
- / ( time[ipos2] - time[ipos1]);
-
- fCTsmp[iBin] = xtalk[ipos2]
- + diff * (xtalk[ipos2] - xtalk[ipos1])
- / ( time[ipos2] - time[ipos1]);
-
+ if (AliTRDCommonParam::Instance()->IsXenon()) {
+ fTRFsmp[iBin] = signal[iBin];
+ fCTsmp[iBin] = xtalk[iBin];
+ }
+ else if (AliTRDCommonParam::Instance()->IsArgon()) {
+ fTRFsmp[iBin] = signalAr[iBin];
+ fCTsmp[iBin] = xtalkAr[iBin];
+ }
}
}
{
//
// Applies the preamp shaper time response
+ // (We assume a signal rise time of 0.2us = fTRFlo/2.
//
- Int_t iBin = ((Int_t) ((time) / fTRFwid));
- //Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid));
- if ((iBin >= 0) && (iBin < fTRFbin)) {
- return fTRFsmp[iBin];
- }
+ Double_t rt = (time - .5*fTRFlo) / fTRFwid;
+ Int_t iBin = (Int_t) rt;
+ Double_t dt = rt - iBin;
+ if ((iBin >= 0) && (iBin+1 < fTRFbin)) {
+ return fTRFsmp[iBin] + (fTRFsmp[iBin+1] - fTRFsmp[iBin])*dt;
+ }
else {
return 0.0;
- }
+ }
}
// Applies the pad-pad capacitive cross talk
//
- Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid));
- if ((iBin >= 0) && (iBin < fTRFbin)) {
- return fCTsmp[iBin];
- }
+ Double_t rt = (time - fTRFlo) / fTRFwid;
+ Int_t iBin = (Int_t) rt;
+ Double_t dt = rt - iBin;
+ if ((iBin >= 0) && (iBin+1 < fTRFbin)) {
+ return fCTsmp[iBin] + (fCTsmp[iBin+1] - fCTsmp[iBin])*dt;
+ }
else {
return 0.0;
- }
+ }
}
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff