ClawDigitizerModule.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/claw/modules/ClawDigitizerModule.h>
#include <beast/claw/dataobjects/ClawSimHit.h>
#include <framework/logging/Logger.h>
#include <framework/gearbox/GearDir.h>
 
//c++
#include <string>
#include <fstream>
#include <vector>
 
using namespace std;
using namespace Belle2;
using namespace claw;
 
 
//-----------------------------------------------------------------
//                 Register the Module
//-----------------------------------------------------------------
REG_MODULE(ClawDigitizer)
 
//-----------------------------------------------------------------
//                 Implementation
//-----------------------------------------------------------------
 
ClawDigitizerModule::ClawDigitizerModule() : Module()
{
  // Set module properties
  setDescription("Claw digitizer module");
 
  //Default values are set here. New values can be in CLAW.xml.
  addParam("ScintCell", m_ScintCell, "Number of scintillator cell", 16);
  addParam("TimeStep", m_TimeStep, "Time step", 0.8);
  addParam("C_keV_to_MIP", m_C_keV_to_MIP, "C_keV_to_MIP", 805.5);
  addParam("C_MIP_to_PE", m_C_MIP_to_PE, "C_MIP_to_PE");
  addParam("MinTime", m_MinTime, "Min. time", 0.0);
  addParam("MaxTime", m_MaxTime, "Max. time", 750.0);
  addParam("PEthres", m_PEthres, "Energy threshold in keV", 1.0);
}
 
ClawDigitizerModule::~ClawDigitizerModule()
{
}
 
void ClawDigitizerModule::initialize()
{
  B2INFO("ClawDigitizer: Initializing");
  m_clawHit.registerInDataStore();
 
  //get the garfield drift data, gas, and CLAW paramters
  getXMLData();
 
}
 
void ClawDigitizerModule::beginRun()
{
}
 
void ClawDigitizerModule::event()
{
 
  StoreArray<ClawSimHit> ClawSimHits;
  //Skip events with no ClawSimHits, but continue the event counter
  if (ClawSimHits.getEntries() == 0) {
    return;
  }
 
  StoreArray<ClawSimHit> SimHits;
  StoreArray<ClawHit> 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 ++)
      hitsarrayinPE[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)
      hitsarrayinPE[TimeBin][detNb] += PE;
  }
  */
  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[detNb];
    if ((m_MinTime < tof && tof < m_MaxTime) &&  PE > m_PEthres)
      Hits.appendNew(ClawHit(detNb,  TimeBin, Edep, MIP, PE));
  }
  /*
  for (int i = 0; i < number_of_timebins; i ++) {
    for (int j = 0; j < m_ScintCell; j ++) {
      if (hitsarrayinPE[i][j] > m_PEthres) {
        double PE = hitsarrayinPE[i][j];
        double MIP = PE / m_C_MIP_to_PE;
        double Edep = MIP * m_C_keV_to_MIP * 1e-6; //keV -> GeV.
        Hits.appendNew(ClawHit(j, i, Edep, MIP, PE));
      }
    }
  }
  */
}
 
//read tube centers, impulse response, and garfield drift data filename from CLAW.xml
void ClawDigitizerModule::getXMLData()
{
  GearDir content = GearDir("/Detector/DetectorComponent[@name=\"CLAW\"]/Content/");
 
  m_ScintCell = content.getInt("ScintCell");
  m_TimeStep = content.getDouble("TimeStep");
  m_MinTime = content.getDouble("MinTime");
  m_MaxTime = content.getDouble("MaxTime");
  m_PEthres = content.getDouble("PEthres");
  m_C_keV_to_MIP = content.getDouble("C_keV_to_MIP");
  //m_C_MIP_to_PE = content.getDouble("C_MIP_to_PE");
 
  B2INFO("ClawDigitizer: Aquired claw locations and gas parameters");
 
}
 
void ClawDigitizerModule::endRun()
{
}
 
void ClawDigitizerModule::terminate()
{
}