Collimators
Basic Idea…
A scraping foil deflects the orbit of halo particles…
…and they are absorbed by thick copper collimators.
All are moveable, and the Copper collimators are located in areas (period 6&7) where radiation is less of an issue.  Once their operation has been established, these areas will be heavily shielded. 
It is hoped that this collimation could reduce important losses by up to a factor of two – possibly more in critical areas.
Status:  All collimators are in and have been exercised.  Initial results look encouraging.  A preliminary shielding design is complete and shielding should be installed over the next few months.