Speaker
Description
Muon tomography has witnessed remarkable progress driven by technical innovations over recent decades. Most muon scattering occurs at small angles well fitted by Gaussian functions, yet large-angle scattering contributes disproportionately to material characteristic indices, whose precise modeling is essential for high-fidelity tomographic reconstruction. This work investigates large-angle muon scattering and verifies a novel characterization method via experimental measurements. Following Molière’s scattering theory, we hypothesize the angular distribution obeys a zero-centred Breit-Wigner profile. Cosmic muon tracks are reconstructed via the Point of Closest Approach (PoCA) algorithm to extract scattering angles. Imaging performance is tested with multiple 2 cm cubic tungsten assemblies of distinct layouts. Experimental outcomes confirm the Breit-Wigner model’s outstanding robustness against angular cutoff constraints, highlighting its promising applicability for muon scattering imaging and multi-target material differentiation. Relevant findings have been published in Physica Scripta and will be elaborated in this talk.
