/************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * * * * Permission to use, copy, modify and distribute this software and its * * documentation strictly for non-commercial purposes is hereby granted * * without fee, provided that the above copyright notice appears in all * * copies and that both the copyright notice and this permission notice * * appear in the supporting documentation. The authors make no claims * * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id$ */ /////////////////////////////////////////////////////////////////////////////// // // // Class containing constant simulation parameters // // // // Request an instance with AliTRDSimParam::Instance() // // Then request the needed values // // // /////////////////////////////////////////////////////////////////////////////// #include #include "AliRun.h" #include "AliTRDSimParam.h" ClassImp(AliTRDSimParam) AliTRDSimParam* AliTRDSimParam::fgInstance = 0; Bool_t AliTRDSimParam::fgTerminated = kFALSE; //_ singleton implementation __________________________________________________ AliTRDSimParam* AliTRDSimParam::Instance() { // // Singleton implementation // Returns an instance of this class, it is created if neccessary // if (fgTerminated != kFALSE) return 0; if (fgInstance == 0) fgInstance = new AliTRDSimParam(); return fgInstance; } void AliTRDSimParam::Terminate() { // // Singleton implementation // 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) { delete fgInstance; fgInstance = 0; } } //_____________________________________________________________________________ AliTRDSimParam::AliTRDSimParam() { // // 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; fPRFOn = kFALSE; Init(); } //_____________________________________________________________________________ void AliTRDSimParam::Init() { // // 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; // Diffusion on fDiffusionOn = kTRUE; // Propability for electron attachment fElAttachOn = kFALSE; fElAttachProp = 0.0; // The time response function fTRFOn = kTRUE; // The cross talk fCTOn = kTRUE; // The tail cancelation fTCOn = kTRUE; // The number of exponentials fTCnexp = 1; // 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; // 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; // Use drift time maps fTimeStructOn = kTRUE; // The pad response function fPRFOn = kTRUE; ReInit(); } //_____________________________________________________________________________ AliTRDSimParam::~AliTRDSimParam() { // // destructor // if (fTRFsmp) { delete [] fTRFsmp; fTRFsmp = 0; } if (fCTsmp) { delete [] fCTsmp; fCTsmp = 0; } } //_____________________________________________________________________________ AliTRDSimParam::AliTRDSimParam(const AliTRDSimParam &p):TObject(p) { // // copy constructor // ((AliTRDSimParam &) p).Copy(*this); } //_____________________________________________________________________________ AliTRDSimParam &AliTRDSimParam::operator=(const AliTRDSimParam &p) { // // Assignment operator // if (this != &p) ((AliTRDSimParam &) p).Copy(*this); return *this; } //_____________________________________________________________________________ void AliTRDSimParam::Copy(TObject &p) const { // // Copy function // AliTRDSimParam* target = dynamic_cast (&p); if (!target) return; target->fGasGain = fGasGain; //target->fField = fField; target->fNoise = fNoise; 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) 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; target->fPRFOn = fPRFOn; } //_____________________________________________________________________________ void AliTRDSimParam::ReInit() { // // 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; // 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 // 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; } if (fTRFsmp) delete [] fTRFsmp; fTRFsmp = new Float_t[fTRFbin]; 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); // 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]); } } //_____________________________________________________________________________ Double_t AliTRDSimParam::TimeResponse(Double_t time) const { // // Applies the preamp shaper time response // Int_t iBin = ((Int_t) ((time) / fTRFwid)); //Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid)); if ((iBin >= 0) && (iBin < fTRFbin)) { return fTRFsmp[iBin]; } else { return 0.0; } } //_____________________________________________________________________________ Double_t AliTRDSimParam::CrossTalk(Double_t time) const { // // Applies the pad-pad capacitive cross talk // Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid)); if ((iBin >= 0) && (iBin < fTRFbin)) { return fCTsmp[iBin]; } else { return 0.0; } }