While particle beam steering (and in particular, "scraping") in accelerators
by bent channeling crystals is an established technique extensively tested at
IHEP Protvino and other major high-energy labs, an interesting question is how
one could improve channeling capabilities by applying modern nanotechnology.
Theoretical research of nanotube channeling was in progress over recent years.
In this work, we assess potential benefits from nanotube channeling for real
accelerator systems. We report simulation studies of channeling in
nanostructured material (carbon SWNT and MWNT) tested for possible serving as a
primary scraper for the collimation systems of hadron colliders. The advantages
of nanostructured material as a potential choice for a primary scraper in a
high-energy accelerator such as LHC or the Tevatron are discussed in comparison
to crystal lattices and amorphous material. We evaluate physical processes
relevant to this application and reveal nanotechnology requirements.Comment: Presented at the Int. Conf. on Atomic Collisions with Solids
(ICACS-21, Genova 4-9 July 2004