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File indexing completed on 2025-02-25 09:20:19

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 os
0015 import time
0016 import DDG4
0017 from DDG4 import OutputLevel as Output
0018 from g4units import GeV, MeV, m
0019 #
0020 #
0021 """
0022 
0023    dd4hep simulation example setup using the python configuration
0024 
0025    @author  M.Frank
0026    @version 1.0
0027 
0028 """
0029 
0030 
0031 def run():
0032   args = DDG4.CommandLine()
0033   kernel = DDG4.Kernel()
0034   install_dir = os.environ['DD4hepExamplesINSTALL']
0035   kernel.loadGeometry(str("file:" + install_dir + "/examples/ClientTests/compact/SiliconBlock.xml"))
0036 
0037   DDG4.importConstants(kernel.detectorDescription(), debug=False)
0038   geant4 = DDG4.Geant4(kernel, tracker='Geant4TrackerCombineAction')
0039   geant4.registerInterruptHandler()
0040   geant4.printDetectors()
0041   # Configure UI
0042   if args.macro:
0043     ui = geant4.setupCshUI(macro=args.macro)
0044   else:
0045     ui = geant4.setupCshUI()
0046   if args.batch:
0047     ui.Commands = ['/run/beamOn ' + str(args.events), '/ddg4/UI/terminate']
0048 
0049   # Configure field
0050   geant4.setupTrackingField(prt=True)
0051   # Configure Event actions
0052   prt = DDG4.EventAction(kernel, 'Geant4ParticlePrint/ParticlePrint')
0053   prt.OutputLevel = Output.DEBUG
0054   prt.OutputType = 3  # Print both: table and tree
0055   kernel.eventAction().adopt(prt)
0056 
0057   generator_output_level = Output.INFO
0058 
0059   # Configure G4 geometry setup
0060   seq, act = geant4.addDetectorConstruction("Geant4DetectorGeometryConstruction/ConstructGeo")
0061   act.DebugMaterials = True
0062   act.DebugElements = False
0063   act.DebugVolumes = True
0064   act.DebugShapes = True
0065   seq, act = geant4.addDetectorConstruction("Geant4DetectorSensitivesConstruction/ConstructSD")
0066 
0067   # Configure I/O
0068   geant4.setupROOTOutput('RootOutput', 'SiliconBlock_' + time.strftime('%Y-%m-%d_%H-%M'))
0069 
0070   # Setup particle gun
0071   gun = geant4.setupGun("Gun", particle='e+', energy=20 * GeV, multiplicity=1)
0072   gun.OutputLevel = generator_output_level
0073 
0074   # And handle the simulation particles.
0075   part = DDG4.GeneratorAction(kernel, "Geant4ParticleHandler/ParticleHandler")
0076   kernel.generatorAction().adopt(part)
0077   part.SaveProcesses = ['Decay']
0078   part.MinimalKineticEnergy = 100 * MeV
0079   part.OutputLevel = Output.INFO  # generator_output_level
0080   part.enableUI()
0081   user = DDG4.Action(kernel, "Geant4TCUserParticleHandler/UserParticleHandler")
0082   user.TrackingVolume_Zmax = 3.0 * m
0083   user.TrackingVolume_Rmax = 3.0 * m
0084   user.enableUI()
0085   part.adopt(user)
0086 
0087   geant4.setupTracker('SiliconBlockUpper')
0088   geant4.setupTracker('SiliconBlockDown')
0089 
0090   # Now build the physics list:
0091   phys = geant4.setupPhysics('QGSP_BERT')
0092   ph = DDG4.PhysicsList(kernel, str('Geant4PhysicsList/Myphysics'))
0093   ph.addParticleConstructor(str('G4Geantino'))
0094   ph.addParticleConstructor(str('G4BosonConstructor'))
0095   ph.enableUI()
0096   phys.adopt(ph)
0097   phys.dump()
0098 
0099   geant4.execute()
0100 
0101 
0102 if __name__ == "__main__":
0103   run()