1 | #ifndef __MFadc__
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2 | #define __MFadc__
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3 | //
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4 | // class MFadc
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5 | //
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6 | // implemented by Harald Kornmayer
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7 | //
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8 | // This is a class to simulate the FADC.
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9 | // It assumes a special response of the PMT for one single Photo-electron.
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10 | //
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11 | //
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12 | //
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13 | #include <stream.h>
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14 | #include <math.h>
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15 |
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16 | #include "TObject.h"
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17 | #include "TRandom.h"
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18 |
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19 | #include "Mdefine.h"
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20 |
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21 | #include "MTriggerDefine.h"
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22 |
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23 | class MMcEvt ;
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24 |
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25 | //==========
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26 | // MFadc
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27 | //
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28 | // The simulation of the Flash ADC system for the MAGIC teleskop is done with
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29 | // this class.
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30 | // So all methods concerning the FADC System should be done inside this
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31 | // class.
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32 | //
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33 | // The Idea is to (in)put the data of the photo electrons into the class and
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34 | // generate the response (output) of the FADC to that input. Response means
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35 | // in this sense the ADC values of the different time slices for all pixels
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36 | //
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37 | // The pixelisation is done by the camera program of Jose Carlos.
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38 | //
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39 | // This class is closly connected to the MTrigger classs. So some of the
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40 | // values defined in MTriggerDefine.h are also used by this class.
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41 | //
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42 | // But a lot of other stuff is defined here.
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43 | //
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44 | // --> Frist of all the WIDTH of the time slice of one FADC slice
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45 | // this is 3.33333 nsec.
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46 | //
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47 | #define WIDTH_FADC_TIMESLICE (50./15.) // this means 3.33 nsec
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48 | //
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49 | // --> Second the number of slices to fill in MFADC. This must by
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50 | // connected to the MTrigger class. The time of interest must be
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51 | // equal in both classes.
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52 | //
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53 | #define SLICES_MFADC (TOTAL_TRIGGER_TIME / WIDTH_FADC_TIMESLICE)
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54 | //
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55 | // --> like the trigger the FADC value will also have a standard response
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56 | // to one single Photo electron. This response is binned with smaller
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57 | // bins. The WIDTH of that response function is done here.
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58 | //
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59 | #define SUBBINS 5.
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60 | #define WIDTH_RESPONSE_MFADC (WIDTH_FADC_TIMESLICE / SUBBINS ) // 5 sub-bin in one FADC slice
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61 | //
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62 | // --> the number of Response slices
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63 | //
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64 | #define RESPONSE_SLICES_MFADC 45
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65 | //
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66 | //
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67 | #define MFADC_RESPONSE_FWHM 5.0
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68 |
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69 | //
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70 | //
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71 | #define MFADC_RESPONSE_AMPLITUDE 4.0
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72 | //
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73 | //
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74 | //
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75 | //
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76 | class MFadc {
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77 | private:
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78 | //
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79 | // then for all pixels the shape of all the analog signals
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80 | //
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81 | Bool_t used[CAMERA_PIXELS] ; // a boolean to indicated if the pixels is used in this event
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82 |
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83 | Float_t sig[CAMERA_PIXELS][(Int_t) SLICES_MFADC] ; // the analog signal for pixels
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84 |
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85 | //
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86 | // first the data for the response function
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87 | //
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88 | Float_t fwhm_resp ; // fwhm of the phe_response function
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89 | Float_t ampl_resp ; // amplitude of the phe_response function (in mV)
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90 | Float_t sing_resp[ RESPONSE_SLICES_MFADC ] ; // the shape of the phe_response function
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91 |
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92 | //
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93 | // RandomGenerator for the Electonic Noise
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94 | //
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95 |
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96 | TRandom *GenElec ;
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97 |
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98 |
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99 | public:
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100 |
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101 | MFadc() ;
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102 |
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103 | void Reset() ;
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104 |
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105 | void Fill( Int_t, Float_t, Float_t ) ;
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106 |
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107 | void ElecNoise() ;
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108 |
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109 | void Scan() ;
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110 |
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111 | void Scan(Float_t time) ;
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112 |
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113 | void ShowSignal ( MMcEvt *McEvt , Float_t ) ;
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114 | } ;
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115 |
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116 |
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117 | #endif
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118 |
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119 |
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120 |
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