Optics Corrections with LOCO in the Fermilab Booster

Conference · Wed Jun 01 00:00:00 EDT 2016

DOI:https://doi.org/10.18429/JACoW-IPAC2016-THPMR002· OSTI ID:1260394

Tan, Cheng-Yang ^[1]; Prost, Lionel ^[1]; Seiya, Kiyomi ^[1]; Triplett, A. Kent ^[1]

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1. Fermilab

The optics of the Fermilab Booster has been corrected with LOCO (Linear Optics from Closed Orbits). However, the first corrections did not show any improvement in capture efficiency at injection. A detailed analysis of the results showed that the problem lay in the MADX optics file. Both the quadrupole and chromatic strengths were originally set as constants independent of beam energy. However, careful comparison between the measured and calculated tunes and chromatcity show that these strengths are energy dependent. After the MADX model was modified with these new energy dependent strengths, the LOCO corrected lattice has been applied to Booster. The effect of the corrected lattice will be discussed here.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1260394
• Report Number(s): FERMILAB-CONF-16-130-AD; 1470500
• Resource Relation: Conference: 7th International Particle Accelerator Conference, Busan, Korea, 05/08-05/13/2016
• Country of Publication: United States
• Language: English

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43 PARTICLE ACCELERATORS