  High energy muon colliders, such as the TeV-scale conceptual designs now
being considered, are found to produce enough high energy neutrinos to
constitute a potentially serious off-site radiation hazard in the neighbourhood
of the accelerator site. A general characterization of this radiation hazard is
given, followed by an order-of-magnitude calculation for the off-site annual
radiation dose and a discussion of accelerator design and site selection
strategies to minimize the radiation hazard.
