3 ms·
Late update: I'm now convinced it's a single-muon thing, because of the paper's discussion about the distance between, and *solid angle* subtended by, the two
by perihelions 3y ago
Late update: I'm now convinced it's a single-muon thing, because of the paper's discussion about the distance between, and *solid angle* subtended by, the two detectors (eq. 2). If they go too far apart, the rate of individual muons that coincidentally hit both detectors drops to unusably low levels (eq. 3, the 1/D² dependence). If it were instead a "they're detecting secondary particles from the same cosmic shower" like someone proposed, this part would be totally different.
- raattgift 3y agoThe principle is "Multiple Coulomb Scattering", and there is a nice brief overview of that in <https://arxiv.org/abs/2212.04947 https://arxiv.org/abs/2212.04947> notably in fig. 1 and fig. 2. There are even more gory details at <https://sci-hub.se/https://doi.org/10.1016/j.nima.2015.06.054 https://sci-hub.se/https://doi.org/10.1016/j.nima.2015.06.05...> (s c y h o b link to Anghel et al 2015, a Canadian muon tomography experiment interested in detecting high atomic number elements for e.g. anti-proliferation/anti-smuggling purposes).