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File indexing completed on 2025-01-18 09:14:13

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 logging
0017 import DDG4
0018 from DDG4 import OutputLevel as Output
0019 from g4units import keV, GeV, mm, ns, MeV
0020 #
0021 logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.INFO)
0022 logger = logging.getLogger(__name__)
0023 #
0024 """
0025 
0026    dd4hep simulation example setup DDG4
0027    in multi-threaded mode using the python configuration
0028 
0029    @author  M.Frank
0030    @version 1.0
0031 
0032 """
0033 
0034 
0035 def setupWorker(geant4):
0036   kernel = geant4.kernel()
0037   logger.info('#PYTHON: +++ Creating Geant4 worker thread ....')
0038   logger.info("#PYTHON:  Configure Run actions")
0039   run1 = DDG4.RunAction(kernel, 'Geant4TestRunAction/RunInit', shared=True)
0040   run1.Property_int = int(12345)
0041   run1.Property_double = -5e15 * keV
0042   run1.Property_string = 'Startrun: Hello_2'
0043   logger.info("%s %s %s", run1.Property_string, str(run1.Property_double), str(run1.Property_int))
0044   run1.enableUI()
0045   kernel.runAction().adopt(run1)
0046 
0047   logger.info("#PYTHON:  Configure Event actions")
0048   prt = DDG4.EventAction(kernel, 'Geant4ParticlePrint/ParticlePrint')
0049   prt.OutputLevel = Output.INFO
0050   prt.OutputType = 3  # Print both: table and tree
0051   kernel.eventAction().adopt(prt)
0052 
0053   logger.info("\n#PYTHON:  Configure I/O\n")
0054   # evt_lcio = geant4.setupLCIOOutput('LcioOutput','CLICSiD_'+time.strftime('%Y-%m-%d_%H-%M'))
0055   # evt_lcio.OutputLevel = Output.ERROR
0056 
0057   geant4.setupROOTOutput('RootOutput', 'CLICSiD_' + time.strftime('%Y-%m-%d_%H-%M'))
0058 
0059   gen = DDG4.GeneratorAction(kernel, "Geant4GeneratorActionInit/GenerationInit")
0060   kernel.generatorAction().adopt(gen)
0061   # VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
0062   logger.info("#PYTHON:\n#PYTHON:  Generation of isotrope tracks of a given multiplicity with overlay:\n#PYTHON:")
0063   logger.info("#PYTHON:  First particle generator: pi+")
0064   gen = DDG4.GeneratorAction(kernel, "Geant4IsotropeGenerator/IsotropPi+")
0065   gen.Mask = 1
0066   gen.Particle = 'pi+'
0067   gen.Energy = 20 * GeV
0068   gen.Multiplicity = 2
0069   kernel.generatorAction().adopt(gen)
0070   logger.info("#PYTHON:  Install vertex smearing for this interaction")
0071   gen = DDG4.GeneratorAction(kernel, "Geant4InteractionVertexSmear/SmearPi+")
0072   gen.Mask = 1
0073   gen.Offset = (20 * mm, 10 * mm, 10 * mm, 0 * ns)
0074   gen.Sigma = (4 * mm, 1 * mm, 1 * mm, 0 * ns)
0075   kernel.generatorAction().adopt(gen)
0076 
0077   logger.info("#PYTHON:  Second particle generator: e-")
0078   gen = DDG4.GeneratorAction(kernel, "Geant4IsotropeGenerator/IsotropE-")
0079   gen.Mask = 2
0080   gen.Particle = 'e-'
0081   gen.Energy = 15 * GeV
0082   gen.Multiplicity = 3
0083   kernel.generatorAction().adopt(gen)
0084   logger.info("#PYTHON:  Install vertex smearing for this interaction")
0085   gen = DDG4.GeneratorAction(kernel, "Geant4InteractionVertexSmear/SmearE-")
0086   gen.Mask = 2
0087   gen.Offset = (-20 * mm, -10 * mm, -10 * mm, 0 * ns)
0088   gen.Sigma = (12 * mm, 8 * mm, 8 * mm, 0 * ns)
0089   kernel.generatorAction().adopt(gen)
0090   # ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
0091 
0092   logger.info("#PYTHON:  Merge all existing interaction records")
0093   gen = DDG4.GeneratorAction(kernel, "Geant4InteractionMerger/InteractionMerger")
0094   gen.OutputLevel = 4  # generator_output_level
0095   gen.enableUI()
0096   kernel.generatorAction().adopt(gen)
0097 
0098   logger.info("#PYTHON:  Finally generate Geant4 primaries")
0099   gen = DDG4.GeneratorAction(kernel, "Geant4PrimaryHandler/PrimaryHandler")
0100   gen.OutputLevel = 4  # generator_output_level
0101   gen.enableUI()
0102   kernel.generatorAction().adopt(gen)
0103 
0104   logger.info("#PYTHON:  ....and handle the simulation particles.")
0105   part = DDG4.GeneratorAction(kernel, "Geant4ParticleHandler/ParticleHandler")
0106   kernel.generatorAction().adopt(part)
0107   # part.SaveProcesses = ['conv','Decay']
0108   part.SaveProcesses = ['Decay']
0109   part.MinimalKineticEnergy = 100 * MeV
0110   part.OutputLevel = 5  # generator_output_level
0111   part.enableUI()
0112   user = DDG4.Action(kernel, "Geant4TCUserParticleHandler/UserParticleHandler")
0113   user.TrackingVolume_Zmax = DDG4.EcalEndcap_zmin
0114   user.TrackingVolume_Rmax = DDG4.EcalBarrel_rmin
0115   user.enableUI()
0116   part.adopt(user)
0117   logger.info('#PYTHON: +++ Geant4 worker thread configured successfully....')
0118   return 1
0119 
0120 
0121 def setupMaster(geant4):
0122   kernel = geant4.master()
0123   logger.info('#PYTHON: +++ Setting up master thread for %d workers', int(kernel.NumberOfThreads))
0124   return 1
0125 
0126 
0127 def setupSensitives(geant4):
0128   logger.info("#PYTHON:  Setting up all sensitive detectors")
0129   geant4.printDetectors()
0130   logger.info("#PYTHON:  First the tracking detectors")
0131   seq, act = geant4.setupTracker('SiVertexBarrel')
0132   seq, act = geant4.setupTracker('SiVertexEndcap')
0133   seq, act = geant4.setupTracker('SiTrackerBarrel')
0134   seq, act = geant4.setupTracker('SiTrackerEndcap')
0135   seq, act = geant4.setupTracker('SiTrackerForward')
0136   logger.info("#PYTHON:  Now setup the calorimeters")
0137   seq, act = geant4.setupCalorimeter('EcalBarrel')
0138   seq, act = geant4.setupCalorimeter('EcalEndcap')
0139   seq, act = geant4.setupCalorimeter('HcalBarrel')
0140   seq, act = geant4.setupCalorimeter('HcalEndcap')
0141   seq, act = geant4.setupCalorimeter('HcalPlug')
0142   seq, act = geant4.setupCalorimeter('MuonBarrel')
0143   seq, act = geant4.setupCalorimeter('MuonEndcap')
0144   seq, act = geant4.setupCalorimeter('LumiCal')
0145   seq, act = geant4.setupCalorimeter('BeamCal')
0146   return 1
0147 
0148 
0149 def run():
0150   kernel = DDG4.Kernel()
0151   description = kernel.detectorDescription()
0152   install_dir = os.environ['DD4hepINSTALL']
0153   DDG4.Core.setPrintFormat(str("%-32s %6s %s"))
0154   kernel.loadGeometry(str("file:" + install_dir + "/DDDetectors/compact/SiD.xml"))
0155   DDG4.importConstants(description)
0156 
0157   kernel.NumberOfThreads = 3
0158   kernel.RunManagerType = 'G4MTRunManager'
0159   geant4 = DDG4.Geant4(kernel, tracker='Geant4TrackerCombineAction')
0160   logger.info("#  Configure UI")
0161   geant4.setupCshUI()
0162 
0163   logger.info("#  Geant4 user initialization action")
0164   geant4.addUserInitialization(worker=setupWorker, worker_args=(geant4,),
0165                                master=setupMaster, master_args=(geant4,))
0166 
0167   logger.info("#  Configure G4 geometry setup")
0168   seq, act = geant4.addDetectorConstruction("Geant4DetectorGeometryConstruction/ConstructGeo")
0169 
0170   logger.info("# Configure G4 sensitive detectors: python setup callback")
0171   seq, act = geant4.addDetectorConstruction("Geant4PythonDetectorConstruction/SetupSD",
0172                                             sensitives=setupSensitives, sensitives_args=(geant4,))
0173   logger.info("# Configure G4 sensitive detectors: atach'em to the sensitive volumes")
0174   seq, act = geant4.addDetectorConstruction("Geant4DetectorSensitivesConstruction/ConstructSD")
0175   #                                           allow_threads=True)
0176 
0177   logger.info("#  Configure G4 magnetic field tracking")
0178   geant4.setupTrackingFieldMT()
0179 
0180   logger.info("#  Setup random generator")
0181   rndm = DDG4.Action(kernel, 'Geant4Random/Random')
0182   rndm.Seed = 987654321
0183   rndm.initialize()
0184   # rndm.showStatus()
0185 
0186   logger.info("#  Now build the physics list:")
0187   phys = geant4.setupPhysics('QGSP_BERT')
0188   phys.dump()
0189 
0190   geant4.run()
0191 
0192 
0193 if __name__ == "__main__":
0194   run()