Title :
Measurement and correction of linear effects in the RHIC interaction regions
Author :
Ptitsyn, V. ; Cardona, J. ; Pilat, E. ; Koutchouk, J-P.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
A considerable amount of betatron coupling in RHIC was found to originate from the interaction region (IR) triplets. A series of dedicated beam studies was performed with the goal of measuring the coupling errors in the IR triplets. The studies used two different methods: local interaction region orbit bumps and the action jump trajectory analysis. The availability of independently powered skew-quadrupole corrector elements in the triplets allow local, beam-based coupling correction in the RHIC interaction regions using the analysed beam data. We also discuss plans for linear IR correction in the RHIC year 2001 run
Keywords :
colliding beam accelerators; ion accelerators; particle beam diagnostics; storage rings; RHIC; action jump trajectory; betatron coupling; coupling errors; interaction regions; linear effects; local interaction region orbit bumps; skew-quadrupole corrector elements; Availability; Data analysis; Dispersion; Error correction; Extraterrestrial measurements; Linear accelerators; Optical coupling; Optical design; Orbital calculations; Performance evaluation;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988028
