opticalproperties_icarus.fcl

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#
# File:    opticalproperties_icarus.fcl
# Purpose: Collection of optical properties.
#
# Available configurations:
#
# * `icarus_opticalproperties`: standard LAr properties for LArProperties service
#


BEGIN_PROLOG

#
# Optical properties for LArProperties
#
# Use as:
#    
#     service.LArPropertiesService: {
#         ...
#         @table::icarus_opticalproperties
#         ...
#     }
#
#
icarus_opticalproperties: {
    
    ScintYield:     24000  # 24000 ph/MeV assume 500 mV/cm
    ScintPreScale:  0.121  # see JINST 13 (2018) 12, P12020
                           # MUST match between g4 and detsim
    # ScintPreScale:  0.0093   # DocDB 4914, @MToups

    ScintYieldRatio:         0.23
    MuonScintYield:          24000
    MuonScintYieldRatio:     0.23
    ScintByParticleType:     true
    PionScintYield:          24000
    PionScintYieldRatio:     0.23
    ElectronScintYield:      20000
    ElectronScintYieldRatio: 0.27
    KaonScintYield:          24000
    KaonScintYieldRatio:     0.23
    ProtonScintYield:        19200
    ProtonScintYieldRatio:   0.29
    AlphaScintYield:         16800
    AlphaScintYieldRatio:    0.56
    
    EnableCerenkovLight: false # Cerenkov light OFF by default
    

    # reflectivities stolen from SBND (sbndcode v09_00_00)
    # note that this is ignored when using FastOptical simulation, and needs
    # services.DetectorPropertiesService.SimpleBoundaryProcess: false
    # when using Optical (check) Redmine issue #25016 is resolved
    ReflectiveSurfaceEnergies:     [ 1.77, 2.0675, 2.481, 2.819, 2.953, 3.1807, 3.54, 4.135, 4.962, 5.39, 7., 15. ]
    ReflectiveSurfaceNames:        [ # in ICARUS geometry (20201107):
      "STEEL_STAINLESS_Fe7Cr2Ni",    # wires, race track, cathode, structure
      "copper",                      # unused
      "G10",                         # unused
      "vm2000",                      # unused
      "ALUMINUM_Al",                 # CRT...
      "ALUMINUM_PMT",                # PMT passive
      "ALUMINUM_CRYO"                # cryostat shell
    ]
    ReflectiveSurfaceReflectances: [
      [ 0.66,  0.64,  0.62,  0.60,  0.59,  0.57,  0.53,  0.47,  0.39,  0.36,  0.27, 0.25 ], # STEEL_STAINLESS_Fe7Cr2Ni
      [ 0.902, 0.841, 0.464, 0.379, 0.345, 0.299, 0.287, 0.264, 0.337, 0.3,   0.0,  0.0  ], # copper
      [ 0.393, 0.405, 0.404, 0.352, 0.323, 0.243, 0.127, 0.065, 0.068, 0.068, 0.0,  0.0  ], # "G10"
      [ 0.93,  0.93,  0.93,  0.93,  0.93,  0.93,  0.1,   0.1,   0.7,   0.3,   0.0,  0.0  ], # "vm2000"
      [ 0.9,   0.9,   0.9,   0.9,   0.9,   0.9,   0.9,   0.47,  0.39,  0.36,  0.27, 0.25 ], # "ALUMINUM_Al"
      [ 0.9,   0.9,   0.9,   0.9,   0.9,   0.9,   0.9,   0.47,  0.39,  0.36,  0.27, 0.25 ], # "ALUMINUM_PMT"
      [ 0.9,   0.9,   0.9,   0.9,   0.9,   0.9,   0.9,   0.47,  0.39,  0.36,  0.27, 0.25 ]  # "ALUMINUM_CRYO"
    ]


} # icarus_opticalproperties

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