  Channeling crystal can serve as a primary scraper for the collimation system
of the Large Hadron Collider. Crystal scraper works in efficient, predictable,
reliable manner with beams of very high intensity over years, and meets
technical requirements imposed on the LHC collimation system. If used as a
primary element in the LHC collimation system, crystal would make the machine
cleaner by a factor of 10 to 40.
