8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

New Methods of Particle Collimation in Colliders

9 Aug 2011, 17:00
30m
557 (Rhode Island Convention Center)

557

Rhode Island Convention Center

Parallel contribution Accelerator Physics Accelerator Physics

Speaker

Giulio Stancari (Fermi National Accelerator Laboratory)

Description

The hollow electron beam collimator is a novel concept of controlled halo removal for intense high-energy beams in storage rings and colliders. It is based on the interaction of the circulating beam with a 5-keV, magnetically confined, pulsed hollow electron beam in a 2-m-long section of the ring. The electrons enclose the circulating beam, kicking halo particles transversely and leaving the beam core unperturbed. By acting as a tunable diffusion enhancer and not as a hard aperture limitation, the hollow electron beam collimator extends conventional collimation systems beyond the intensity limits imposed by tolerable losses. The concept was tested experimentally at the Fermilab Tevatron proton-antiproton collider. Results on the collimation of 980-GeV antiprotons are presented.

Primary author

Giulio Stancari (Fermi National Accelerator Laboratory)

Presentation Materials