Title :
New results from crystal collimation at RHIC
Author :
Fliller, R.P. ; Drees, A. ; Gassner, D. ; Hammons, L. ; McIntyre, G. ; Peggs, S. ; Trbojevic, D. ; Biryukov, V. ; Chesnokov, Y. ; Terekhov, V.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
In this paper, we discuss new results from the use of the crystal collimator from the 2003 run. The yellow ring of the Relativistic Heavy Ion Collider (RHIC) has a bent crystal collimator. By properly aligning the crystal to the beam halo, particles entering the crystal are deflected away from the beam and intercepted downstream in a copper scraper. The purpose of a bent crystal is to improve the collimation efficiency as compared to a scraper alone. We compare these results to previous data, simulation, and theoretical predictions.
Keywords :
beam handling techniques; ion accelerators; particle beam diagnostics; storage rings; synchrotrons; RHIC; Relativistic Heavy Ion Collider; beam halo; bent crystal collimator; copper scraper; crystal collimation; yellow ring; Apertures; Clouds; Collimators; Copper; Electrons; Lattices; Partial response channels; Particle scattering; Scattering parameters; Silicon;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Conference_Location :
Portland, OR
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1288638
