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In the tomographic configurations based on the muon scattering, the angularvariation with respect to the kinetic energy indirectly brings forth theability to coarsely predict the kinetic energy by using the deflection angleowing to the detector layers. Nevertheless, the angular deviation due to thedetector components is expected to be minuscule in addition to a relativelyhigh uncertainty in the case of the plastic scintillators. In the presentstudy, we contrast our current tomographic prototype, which consists of thedetector layers manufactured from polyvinyl toluene besides a detector accuracyof 1 mrad, with an alternative hodoscope scheme containing stainless steellayers by aiming to investigate the three-group energy structure. Initially, wedetermine the average deflection angles together with the correspondingstandard deviations for our present setup as well as for the alternative schemeby means of the GEANT4 simulations. In the second place, we express a brace ofmisclassification probabilities founded on the standard deviations where thefirst procedure assumes a linear finite approximation, whereas the latterapproach rests on a positively defined modified Gaussian distribution. Upon oursimulation results, we demonstrate that the introduced stainless steel layersin the proposed hodoscope setup do not only serve to augment the averagedeflection angles, but they also diminish the misclassification probabilities,therewith reducing the classification uncertainty apart from an improveddetection performance.

journal of instrumentation

Effect of passive metallic layers on muon energy estimation by means of  deflection angle for muon scattering tomography: A comparative study based on  GEANT4 simulations