Title :
Analytic closed orbit analysis for RHIC insertion
Author :
Lee, S.Y. ; Tepikian, S.
Author_Institution :
Dept. of Phys., Indiana Univ., Bloomington, IN, USA
Abstract :
Analytic closed-orbit analysis is performed to evaluate the tolerance of quadrupole misalignment and dipole errors (b/sub 0/, a/sub 0/) in the RHIC insertion. Sensitivity coefficients of these errors are tabulated for different beta * values. Using these sensitivity tables, it is found that the power supplies ripple of 10/sup -4/ can cause closed orbit motion of 0.05 mm at the IP, in comparison with the RMS beam size of 0.3 mm. It is desirable to have the power supply ripple less than 10/sup -5/.<>
Keywords :
beam handling techniques; ion accelerators; synchrotrons; IP; RHIC insertion; RMS beam size; beta * values; closed orbit motion; closed-orbit analysis; dipole errors; power supplies ripple; quadrupole misalignment; Apertures; Error analysis; Laboratories; Lenses; Orbital calculations; Particle accelerators; Performance analysis; Performance evaluation; Physics; Power supplies;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164728
