ParameterGEM.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
// Remark: This file has been modified by Viktor Ratza in order to
// implement the electron efficiency models for the collection and the
// extraction efficiency.
 
#ifndef ALICEO2_TPC_ParameterGEM_H_
#define ALICEO2_TPC_ParameterGEM_H_
 
#include <array>
#include <cmath>
#include "CommonUtils/ConfigurableParam.h"
#include "CommonUtils/ConfigurableParamHelper.h"
 
namespace o2
{
namespace tpc
{
 
enum class AmplificationMode : char {
  FullMode = 0,      
  EffectiveMode = 1, 
};
 
struct ParameterGEM : public o2::conf::ConfigurableParamHelper<ParameterGEM> {
 
  float getEffectiveGain(int gem) const
  {
    return CollectionEfficiency[gem] * AbsoluteGain[gem] * ExtractionEfficiency[gem];
  }
 
  int Geometry[4] = {0, 2, 2, 0};                                
  float Distance[5] = {4.f, 0.2f, 0.2f, 0.2f, 0.2f};             
  float Potential[4] = {270.f, 250.f, 270.f, 340.f};             
  float ElectricField[5] = {0.4f, 4.f, 2.f, 0.1f, 4.f};          
  float AbsoluteGain[4] = {14.f, 8.f, 53.f, 240.f};              
  float CollectionEfficiency[4] = {1.f, 0.2f, 0.25f, 1.f};       
  float ExtractionEfficiency[4] = {0.65f, 0.55f, 0.12f, 0.6f};   
  float TotalGainStack = 2000.f;                                 
  float KappaStack = 1.205f;                                     
  float EfficiencyStack = 0.528f;                                
  AmplificationMode AmplMode = AmplificationMode::EffectiveMode; 
 
  O2ParamDef(ParameterGEM, "TPCGEMParam");
};
} // namespace tpc
 
namespace framework
{
template <typename T>
struct is_messageable;
template <>
struct is_messageable<o2::tpc::ParameterGEM> : std::true_type {
};
} // namespace framework
 
} // namespace o2
 
#endif // ALICEO2_TPC_ParameterGEM_H_