PPT Slide
HEMC workshop 1999 cdj Siting Options
The neutrino flux from a high energy muon collider will present a radiation hazard unless the collider ring is placed underground - deep enough that the the dose rates from hadronic and leptonic showers in the regions where the neutrino beam (disk) exits the Earth’s surface are well below permitted radiation levels. Approximate values of the depth underground versus CoM energy are listed below.
The practical limit to underground siting is in the region of 5 to 10 TeV unless some advantage can be taken of:
A mountain site - collider in valley or on mountain top
An island site - collider below sea level
Very low population density (occupancy factor is a regulatory issue)
None of these are particularly attractive propositions but they should be evaluated in terms of their regulatory, economic, cultural and political implications.