High efficiency beam halo crystal extraction from proton colliders

High energy particle colliders are probably the most sophisticated machines ever built. Colliding beams have to be kept stable for many hours, and beam parameters should be preserved for delivering maximal information to the physicists. Several promising directions for improvements in high energy collider performance have been initiated by the author and reported in scientific publications and related patent documentation. The question of extraction of the beam halo by means of a bent crystal is elaborated below. Halo particles of high energy beams would be extracted from colliders with high efficiency without interference with colliding beam experiments. This would eliminate irradiation of accelerator parts by the beam halo, creating more favorable environmental situation at accelerators. The extracted beam could be used for parasitic experiments, or disposed of in an environmentally controlled manner. copyright 1996 American Institute of Physics