QcsmonitorDigitizerModule.cc

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#include <beast/qcsmonitor/modules/QcsmonitorDigitizerModule.h>
#include <beast/qcsmonitor/dataobjects/QcsmonitorSimHit.h>
 
#include <framework/logging/Logger.h>
#include <framework/gearbox/GearDir.h>
 
//c++
#include <string>
 
using namespace std;
using namespace Belle2;
using namespace qcsmonitor;
 
 
//-----------------------------------------------------------------
//                 Register the Module
//-----------------------------------------------------------------
REG_MODULE(QcsmonitorDigitizer);
 
//-----------------------------------------------------------------
//                 Implementation
//-----------------------------------------------------------------
 
QcsmonitorDigitizerModule::QcsmonitorDigitizerModule() : Module()
{
  // Set module properties
  setDescription("Qcsmonitor digitizer module");
 
  //Default values are set here. New values can be in QCSMONITOR.xml.
  addParam("ScintCell", m_ScintCell, "Number of scintillator cell", 2);
  addParam("TimeStep", m_TimeStep, "Time step", 0.8);
  addParam("C_keV_to_MIP", m_C_keV_to_MIP, "C_keV_to_MIP", 241.65);
  addParam("C_MIP_to_PE", m_C_MIP_to_PE, "C_MIP_to_PE", 15.0);
  addParam("MinTime", m_MinTime, "Min. time", 0.0);
  addParam("MaxTime", m_MaxTime, "Max. time", 750.0);
  addParam("MIPthres", m_MIPthres, "Energy threshold in keV", 0.5);
}
 
QcsmonitorDigitizerModule::~QcsmonitorDigitizerModule()
{
}
 
void QcsmonitorDigitizerModule::initialize()
{
  B2INFO("QcsmonitorDigitizer: Initializing");
  m_qcsmonitorHit.registerInDataStore();
 
  //get the garfield drift data, gas, and QCSMONITOR parameters
  getXMLData();
 
}
 
void QcsmonitorDigitizerModule::beginRun()
{
}
 
void QcsmonitorDigitizerModule::event()
{
 
  StoreArray<QcsmonitorSimHit> QcsmonitorSimHits;
 
  //Skip events with no QcsmonitorSimHits, but continue the event counter
  if (QcsmonitorSimHits.getEntries() == 0) {
    return;
  }
 
  StoreArray<QcsmonitorSimHit> SimHits;
  StoreArray<QcsmonitorHit> Hits;
 
  int number_of_timebins = (int)((m_MaxTime - m_MinTime) / m_TimeStep);
 
  for (int i = 0; i < 1000; i ++)
    for (int j = 0; j < 100; j ++)
      hitsarrayinMIP[i][j] = 0;
 
  for (const auto& SimHit : SimHits) {
    const int detNb = SimHit.getCellId();
    const double Edep = SimHit.getEnergyDep() * 1e6; //GeV -> keV
    const double tof = SimHit.getFlightTime(); //ns
    int TimeBin = tof / m_TimeStep;
    double MIP = Edep / m_C_keV_to_MIP;
    //double PE = MIP * m_C_MIP_to_PE;
    if (m_MinTime < tof && tof < m_MaxTime && TimeBin < 1000 && detNb < 100)
      hitsarrayinMIP[TimeBin][detNb] += MIP;
  }
 
  /*
    for (const auto& SimHit : SimHits) {
    const int detNb = SimHit.getCellId();
    //int pdg = SimHit.getPDGCode();
    const double Edep = SimHit.getEnergyDep() * 1e6; //GeV -> keV
    const double tof = SimHit.getFlightTime(); //ns
    int TimeBin = tof / m_TimeStep;
    double MIP = Edep / m_C_keV_to_MIP;
    double PE = MIP * m_C_MIP_to_PE;
    if ((m_MinTime < tof && tof < m_MaxTime) &&  MIP > m_MIPthres)
    //if (hitsarrayinMIP[TimeBin][detNb] > m_MIPthres)
    Hits.appendNew(QcsmonitorHit(detNb,  TimeBin, Edep, MIP, PE));
    }
  */
 
  for (int i = 0; i < number_of_timebins; i ++) {
    for (int j = 0; j < m_ScintCell; j ++) {
      if (hitsarrayinMIP[i][j] > m_MIPthres) {
        double MIP = hitsarrayinMIP[i][j];
        double Edep = MIP * m_C_keV_to_MIP * 1e-6; //keV -> GeV.
        double PE = MIP * m_C_MIP_to_PE;
        Hits.appendNew(QcsmonitorHit(j, i, Edep, MIP, PE));
      }
    }
  }
 
}
 
//read tube centers, impulse response, and garfield drift data filename from QCSMONITOR.xml
void QcsmonitorDigitizerModule::getXMLData()
{
  GearDir content = GearDir("/Detector/DetectorComponent[@name=\"QCSMONITOR\"]/Content/");
 
  m_ScintCell = content.getInt("ScintCell");
  m_TimeStep = content.getDouble("TimeStep");
  m_MinTime = content.getDouble("MinTime");
  m_MaxTime = content.getDouble("MaxTime");
  m_MIPthres = content.getDouble("MIPthres");
  m_C_keV_to_MIP = content.getDouble("C_keV_to_MIP");
  m_C_MIP_to_PE = content.getDouble("C_MIP_to_PE");
 
  B2INFO("QcsmonitorDigitizer: Acquired qcsmonitor locations and gas parameters");
 
}
 
void QcsmonitorDigitizerModule::endRun()
{
}
 
void QcsmonitorDigitizerModule::terminate()
{
}