On the image in RHIC of AGS spin vector via the AtR
- Brookhaven National Lab. (BNL), Upton, NY (United States)
This note re-visits the transport of the spin nn0 vector, from its periodic orientation in the AGS, to the downstream end of the Blue and Yellow RHIC ring injection kickers via the AGS extraction system and the AtR line. The goal is to verify the optimal injection energy into RHIC, in matter of spin matching. This is done using newly computed OPERA 3-D field maps of the AGS cold snake, including a new setting of the cold snake solenoid as discussed in a companion Tech. Note (C-A/AP/485, July 2013), together with the machinery of the AGS and AtR models developed in the stepwise ray-tracing code Zgoubi. Computing tools and methods employed in these investigations are discussed as well, in order to facilitate possible further checks or investigations.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 1119571
- Report Number(s):
- BNL-103719-2013-IR; R&D Project: KBCH139; 18031; KB0202011
- Country of Publication:
- United States
- Language:
- English
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