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10 changes: 6 additions & 4 deletions sbndcode/OpDetSim/digi_arapuca_sbnd.fcl
Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,11 @@ sbnd_digiarapuca_alg:
#Assume 25v bias with sensl c series SiPM. Values should be changed if SiPMs are to be ganged and/or of different manufacturer
#Values of MaxAmplitude and BackTime to be confirmed

# For details in the values measured at CIEMAT: https://sbn-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=35183

ArapucaBaselineRMS: 0.65 # 2.6/4 as PMTs with 14bits ADC have 4 ADC counts and most XA channels will be 12 bits
ArapucaDarkNoiseRate: 10.0 #in Hz
CrossTalk: 0.2 #20% probability
CrossTalk: 0.424 #measured at CIEMAT, SensL SiPMs at 5.75 OV
ArapucaBaseline: 700 #supposing a 12-bits ADC and 20% overshoot, 4069/6 ~700
ArapucaPulseLength: 4000.0 #ns
ArapucaPeakTime: 260.0 #ns
Expand All @@ -20,9 +22,9 @@ sbnd_digiarapuca_alg:
ArapucaFallTime: 476.0 #ns
ArapucaSaturationHigh: 4095 #ADC saturation for 12 bit ADCs, high limit (2**12-1, ADC starts at 0)
ArapucaSaturationLow: 0. #ADC saturation for 12 bit ADCs, low limit
XArapucaVUVEffVUV: 0.021 #VUV XArapuca efficiency to VUV light
XArapucaVUVEffVis: 0.007 #VUV XArapuca efficiency to vis light (half the visible efficiency)
XArapucaVISEff: 0.014 #XArapuca VIS efficiency (taking into account 70% mesh transparency 0.02*0.7)
XArapucaVUVEffVUV: 0.01752 # 2.19% x 0.8(APA mesh transparency not simulated in G4) VUV XArapuca efficiency to VUV light, measured at CIEMAT
XArapucaVUVEffVis: 0.00271 # 0.43% x 0.8 x 0.79 (APA mesh transparency + CPA TPB area factor): VUV XArapuca efficiency to vis light, measured at CIEMAT
XArapucaVISEff: 0.01264 # 2.00% x 0.8 x 0.79 (APA mesh transparency + CPA TPB area factor): XArapuca VIS efficiency (taking into account 70% mesh transparency 0.02*0.7)
DecayTXArapucaVIS: 8.5 # decay time of EJ280 in ns
ArapucaDataFile: "OpDetSim/digi_arapuca_sbnd.root" # located in sbnd_data
ArapucaSinglePEmodel: true # false for ideal response true for response from XTDBoard cold tests
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