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PHG4TpcPadPlaneReadout.h
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1 #ifndef G4TPC_PHG4TPCPADPLANEREADOUT_H
2 #define G4TPC_PHG4TPCPADPLANEREADOUT_H
3 
4 #include "PHG4TpcPadPlane.h"
5 
6 #include <g4main/PHG4HitContainer.h>
7 
8 #include <gsl/gsl_rng.h>
9 
10 #include <array>
11 #include <climits>
12 #include <cmath>
13 #include <string> // for string
14 #include <vector>
15 
16 class PHCompositeNode;
17 class PHG4CellContainer;
18 class PHG4CylinderCellGeomContainer;
19 class PHG4CylinderCellGeom;
20 class TNtuple;
21 class TrkrHitSetContainer;
22 class TrkrHitTruthAssoc;
23 
24 class PHG4TpcPadPlaneReadout : public PHG4TpcPadPlane
25 {
26  public:
27  PHG4TpcPadPlaneReadout(const std::string &name = "PHG4TpcPadPlaneReadout");
28 
29  ~PHG4TpcPadPlaneReadout() override;
30 
31  int CreateReadoutGeometry(PHCompositeNode *topNode, PHG4CylinderCellGeomContainer *seggeo) override;
32 
33  void MapToPadPlane(PHG4CellContainer *g4cells, const double x_gem, const double y_gem, const double t_gem, PHG4HitContainer::ConstIterator hiter, TNtuple *ntpad, TNtuple *nthit) override;
34 
35  void MapToPadPlane(TrkrHitSetContainer *single_hitsetcontainer, TrkrHitSetContainer *hitsetcontainer, TrkrHitTruthAssoc *hittruthassoc, const double x_gem, const double y_gem, const double t_gem, PHG4HitContainer::ConstIterator hiter, TNtuple *ntpad, TNtuple *nthit) override;
36 
37  void SetDefaultParameters() override;
38  void UpdateInternalParameters() override;
39 
40  private:
41  void populate_rectangular_phibins(const unsigned int layernum, const double phi, const double cloud_sig_rp, std::vector<int> &pad_phibin, std::vector<double> &pad_phibin_share);
42  void populate_zigzag_phibins(const unsigned int layernum, const double phi, const double cloud_sig_rp, std::vector<int> &pad_phibin, std::vector<double> &pad_phibin_share);
43  void populate_zbins(const double z, const std::array<double, 2> &cloud_sig_zz, std::vector<int> &adc_zbin, std::vector<double> &adc_zbin_share);
44 
45  std::string seggeonodename;
46 
47  PHG4CylinderCellGeomContainer *GeomContainer = nullptr;
48  PHG4CylinderCellGeom *LayerGeom = nullptr;
49 
50  double rad_gem = NAN;
51  double output_radius = 0;
52 
53  static const unsigned int print_layer = 18;
54 
55  double neffelectrons_threshold = NAN;
56 
57  std::array<int, 3> MinLayer;
58  std::array<double, 3> MinRadius;
59  std::array<double, 3> MaxRadius;
60  std::array<double, 3> Thickness;
61  double MinZ = NAN;
62  double MaxZ = NAN;
63  double sigmaT = NAN;
64  std::array<double, 2> sigmaL;
65  std::array<double, 3> PhiBinWidth;
66  double ZBinWidth = NAN;
67  double tpc_drift_velocity = NAN;
68  double tpc_adc_clock = NAN;
69 
70  int NZBins = INT_MAX;
71  std::array<int, 3> NPhiBins;
72  std::array<int, 3> NTpcLayers;
73  int zigzag_pads = INT_MAX;
74  int hit = 0;
75 
76  // gaussian sampling
77  static constexpr double _nsigmas = 5;
78 
79  double averageGEMGain = NAN;
80 
81  std::vector<int> adc_zbin;
82  std::vector<int> pad_phibin;
83  std::vector<double> pad_phibin_share;
84  std::vector<double> adc_zbin_share;
85 
86  // return random distribution of number of electrons after amplification of GEM for each initial ionizing electron
87  double getSingleEGEMAmplification();
88  gsl_rng *RandomGenerator;
89 };
90 
91 #endif