THE TWO STAGE CRYSTAL COLLIMATOR FOR RHIC.
The use of a two stage crystal collimation system in the RHIC yellow ring is examined. The system includes a copper beam scraper and a bent silicon crystal. While scrapers were installed in both of the RHIC rings before the year 2000 run, the crystal is installed for the 2001 run in one ring only, forming a two stage collimation system there. We present simulations of the expected channeling through the bent silicon crystal for both protons and gold ions with various beam parameters. This gives a picture of the particle losses around the ring, and the expected channeling efficiency. These results are then used to optimize the beam parameters in the area of the crystal to obtain maximum channeling efficiency, minimize out-scattering in the secondary collimator, and reduce beam halo.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 785045
- Report Number(s):
- BNL-67967; KA0201; R&D Project: AD002ADOP; KA0201; TRN: US0108327
- Resource Relation:
- Conference: PARTICLE ACCELERATOR CONFERENCE 2001, CHICAGO, IL (US), 06/18/2001--06/22/2001; Other Information: PBD: 18 Jun 2001
- Country of Publication:
- United States
- Language:
- English
Similar Records
NEW RESULTS FROM CRYSTAL COLLIMATION AT RHIC.
CRYSTAL COLLIMATION AT RHIC.