CERN Accelerating science

Article
Title FLUKA simulations of neutrino-induced effective dose at a Muon Collider
Author(s) Lerner, Giuseppe (CERN) ; Frasca, Alessandro (CERN ; Liverpool U.) ; Lechner, Anton (CERN) ; Carli, Christian (CERN) ; Ahdida, Claudia (CERN) ; Manczak, Jerzy (CERN)
Publication 2024
Number of pages 4
In: JACoW IPAC 2024 (2024) WEPR27
In: 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR27
DOI 10.18429/JACoW-IPAC2024-WEPR27
Subject category Accelerators and Storage Rings
Abstract During the operation of a muon collider in an underground tunnel, most circulating muons decay into an electron (or positron) and a neutrino-antineutrino pair, resulting in a narrow disk of high-energy neutrinos emitted radially in the collider plane and emerging on the Earth’s surface at distances of several km. Thus, dedicated studies are required to assess any potential radiation protection risks to the public due to the interaction of such neutrinos near the surface. This work presents a set of FLUKA Monte Carlo simulations aimed at characterizing the radiation showers generated by the interactions of high-energy neutrinos from TeV-scale muon decays in a reference sample of soil. The results are expressed in terms of effective dose in soil at different distances from the muon decay, quantifying the peak dose and the width of the radiation cone, for beam energies of 1.5 TeV and 5 TeV. The implications of these results for realistic muon collider scenarios are discussed, along with possible methods to mitigate the local neutrino flux.
Copyright/License CC-BY-4.0

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