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File indexing completed on 2025-01-30 09:17:46

0001 # ==========================================================================
0002 #  AIDA Detector description implementation
0003 # --------------------------------------------------------------------------
0004 # Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
0005 # All rights reserved.
0006 #
0007 # For the licensing terms see $DD4hepINSTALL/LICENSE.
0008 # For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
0009 #
0010 # ==========================================================================
0011 #
0012 #
0013 from __future__ import absolute_import, unicode_literals
0014 import logging
0015 #
0016 logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.INFO)
0017 logger = logging.getLogger(__name__)
0018 #
0019 #
0020 """
0021 
0022    dd4hep simulation example setup using the python configuration
0023 
0024    NOTE:
0025    If you get to the command prompt, you must not forget to enable GFlash!
0026    By default Geant4 does not enable it. Hence:
0027    Idle>  /GFlash/flag 1
0028 
0029    @author  M.Frank
0030    @version 1.0
0031 
0032 """
0033 
0034 
0035 def run():
0036   import os
0037   import time
0038   import DDG4
0039   args = DDG4.CommandLine()
0040   if args.help:
0041     import sys
0042     logger.info("""
0043           python <dir>/ParamValue.py -option [-option]
0044               -geometry <geometry file>       Geometry with full path
0045               -vis                            Enable visualization
0046               -macro                          Pass G4 macro file to UI executive
0047               -batch                          Run in batch mode for unit testing
0048               -events <number>                Run geant4 for specified number of events
0049                                               (batch mode only)
0050     """)
0051     sys.exit(0)
0052 
0053   from DDG4 import OutputLevel as Output
0054   from g4units import GeV, MeV, m
0055   kernel = DDG4.Kernel()
0056   if args.geometry:
0057     kernel.loadGeometry(str("file:" + args.geometry))
0058   else:
0059     install_dir = os.environ['DD4hepExamplesINSTALL']
0060     kernel.loadGeometry(str("file:" + install_dir + "/examples/ClientTests/compact/SiliconBlock.xml"))
0061 
0062   DDG4.importConstants(kernel.detectorDescription(), debug=False)
0063   geant4 = DDG4.Geant4(kernel, tracker='Geant4TrackerCombineAction', calo='Geant4CalorimeterAction')
0064   geant4.printDetectors()
0065   # Configure UI
0066   if args.macro:
0067     ui = geant4.setupCshUI(macro=args.macro, vis=args.vis)
0068   else:
0069     ui = geant4.setupCshUI()
0070   if args.batch:
0071     ui.Commands = ['/run/beamOn ' + str(args.events), '/ddg4/UI/terminate']
0072 
0073   # Configure field
0074   geant4.setupTrackingField(prt=True)
0075   # Configure Event actions
0076   prt = DDG4.EventAction(kernel, 'Geant4ParticlePrint/ParticlePrint')
0077   prt.OutputLevel = Output.DEBUG
0078   kernel.eventAction().adopt(prt)
0079 
0080   generator_output_level = prt.OutputLevel
0081 
0082   # Configure G4 geometry setup
0083   seq, act = geant4.addDetectorConstruction('Geant4DetectorGeometryConstruction/ConstructGeo')
0084   act.DebugMaterials = True
0085   act.DebugElements = False
0086   act.DebugVolumes = True
0087   act.DebugShapes = True
0088 
0089   # Apply sensitive detectors
0090   sensitives = DDG4.DetectorConstruction(kernel, str('Geant4DetectorSensitivesConstruction/ConstructSD'))
0091   sensitives.enableUI()
0092   seq.adopt(sensitives)
0093 
0094   # Enable GFlash shower model
0095   model = DDG4.DetectorConstruction(kernel, str('Geant4GFlashShowerModel/ShowerModel'))
0096   model.Parametrization = 'GFlashHomoShowerParameterisation'
0097   # Mandatory model parameters
0098   model.RegionName = 'SiRegion'
0099   model.Material = 'Silicon'
0100   model.Enable = True
0101   # Energy boundaries are optional: Units are GeV
0102   model.Emin = {'e+': 0.1 * GeV, 'e-': 0.1 * GeV}
0103   model.Emax = {'e+': 100 * GeV, 'e-': 100 * GeV}
0104   model.Ekill = {'e+': 0.1 * MeV, 'e-': 0.1 * MeV}
0105   model.enableUI()
0106   seq.adopt(model)
0107 
0108   # Configure I/O
0109   geant4.setupROOTOutput('RootOutput', 'SiliconBlock_GFlash_' + time.strftime('%Y-%m-%d_%H-%M'))
0110 
0111   # Setup particle gun
0112   gun = geant4.setupGun("Gun", particle='e+', energy=50 * GeV, multiplicity=1)
0113   gun.OutputLevel = generator_output_level
0114 
0115   # And handle the simulation particles.
0116   part = DDG4.GeneratorAction(kernel, "Geant4ParticleHandler/ParticleHandler")
0117   kernel.generatorAction().adopt(part)
0118   part.SaveProcesses = ['Decay']
0119   part.MinimalKineticEnergy = 100 * MeV
0120   part.OutputLevel = Output.INFO  # generator_output_level
0121   part.enableUI()
0122   user = DDG4.Action(kernel, "Geant4TCUserParticleHandler/UserParticleHandler")
0123   user.TrackingVolume_Zmax = 3.0 * m
0124   user.TrackingVolume_Rmax = 3.0 * m
0125   user.enableUI()
0126   part.adopt(user)
0127 
0128   geant4.setupTracker('SiliconBlockUpper')
0129   geant4.setupTracker('SiliconBlockDown')
0130 
0131   # Now build the physics list:
0132   phys = geant4.setupPhysics('FTFP_BERT')
0133   ph = DDG4.PhysicsList(kernel, str('Geant4FastPhysics/FastPhysicsList'))
0134   ph.EnabledParticles = ['e+', 'e-']
0135   ph.BeVerbose = True
0136   ph.enableUI()
0137   phys.adopt(ph)
0138   phys.dump()
0139 
0140   geant4.execute()
0141 
0142 
0143 if __name__ == "__main__":
0144   run()