CMBG_conf.py

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# SPDX-License-Identifier: LGPL-3.0-or-later
# SPDX-FileCopyrightText: Copyright CERN for the benefit of the SHiP Collaboration
 
 
def configure(CMBG, ship_geo):
    # handles external variables for the Cosmic Muon Background Generator within FairShip
    Z1 = ship_geo.MuonStation3.z  # 3900
    Z2 = ship_geo.vetoStation.z  # -1968
    Z3 = ship_geo.chambers.Tub1length  # 250
    zmiddle = (Z1 + (Z2 - 2 * Z3)) / 2  # 716
 
    # CMBG production area
    CMBG.xdist = 3000  # production area size [cm]
    CMBG.zdist = 9000  # production area size [cm]
    # DetectorBox
    CMBG.yBox = 600  # box top layer [cm]
    CMBG.xBox = 300  # box side layer [cm]
    CMBG.zBox = 3650  # box length [cm]
    CMBG.z0 = zmiddle  # relative coordinate system [cm] (Z_muonstation + (Z_veto - 2 * Z_Tub1))/2,... Z_veto <0 ! ->z0 = 716, sets the middle of the production area
    # setup
    CMBG.n_EVENTS = 400000  # #simulated events per "spill"
    CMBG.minE = 1.0  # low energy limit for the Low-energy simulation [GeV]