H*(10) from neutrino interaction products as a function of distance from the muon collider, or, equivalently, depth of the muon collider (top x-axis). Normalized to 1.2 × 10²¹ μ decays per year. The horizontal line draws the limit for population. Muon beams at 1 TeV (2 TeV centre of mass energy), radiation from the ensemble of the ring. FLUKA results labelled “peak” are averaged over 1 m in the vertical direction. FLUKA results labelled “cone” are averaged over 1/γ to be compatible with results in [319] (black symbols). The analytical approximations as in [320, 321] (red and green lines) are displayed.