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U.S. Department of Energy
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Global Orbit Feedback in RHIC

Conference ·
OSTI ID:984409
For improved reproducibility of good operating conditions and ramp commissioning efficiency, new dual-plane slow orbit feedback during the energy ramp was implemented during run-10 in the Relativistic Heavy Ion Collider (RHIC). The orbit feedback is based on steering the measured orbit, after subtraction of the dispersive component, to either a design orbit or to a previously saved reference orbit. Using multiple correctors and beam position monitors, an SVD-based algorithm is used for determination of the applied corrections. The online model is used as a basis for matrix computations. In this report we describe the feedback design, review the changes made to realize its implementation, and assess system performance.
Research Organization:
Brookhaven National Laboratory (BNL) Relativistic Heavy Ion Collider
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
AC02-98CH10886
OSTI ID:
984409
Report Number(s):
BNL--90818-2010-CP; KB0202011
Country of Publication:
United States
Language:
English

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