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In this study, a source scheme based on source biasing as well as discreteenergy spectrum in the cylindrical geometry is presented for the simulations ofmuon tomography in the GEANT4 toolkit. First, a lateral cylindrical surface anda top circular disc act as a generation surface that surrounds the tomographicsetup. Then, the generated muons are directed towards the origin where thetarget volume is situated. Secondly, the kinetic energy of the entering muonsis assigned by using a 80-bin discrete energy spectrum between 0 and 8 GeV thatis extracted from the CRY muon generator. Thus, the present recipe is calledcylindrical oriented muon emission (COME). This source scheme may especiallyfind its applications in the cases where the lateral muon detectors areutilized in order to profit from the horizontal or horizontal-like muons.

COME: Cylindrical oriented muon emission in GEANT4 simulations