OVERCOMING DEPOLARIZING RESONANCES IN THE AGS WITH TWO HELICAL PARTIAL SNAKES [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 2007.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators: Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Dual partial snake scheme has provided polarized proton beams with 1.5 x 10¹¹ intensity and 65% polarization for the Relativistic Heavy Ion Collider (RHIC) spin program. To overcome the residual polarization loss due to horizontal resonances in the Brookhaven Alternating Gradient Synchrotron (AGS), a new string of quadrupoles have been added. The horizontal tune can then be set in the spin tune gap generated by the two partial snakes, such that horizontal resonances can also be avoided. This paper presents the accelerator setup and preliminary results.

Report Numbers

E 1.99:bnl--77529-2007-cp
bnl--77529-2007-cp

Subject(s)

Particle Accelerators

Other Subject(s)

Note

Published through SciTech Connect.
06/25/2007.
"bnl--77529-2007-cp"
22ND PARTICLE ACCELERATOR CONFERENCE; ALBUQUERQUE, NEW MEXICO; 20070625 through 20070629.
GARDNER, C.J.; ET AL.; BROWN, K.A.; BAI, M.; HUANG,H.; AHRENS, L.

Funding Information

DE-AC02-98CH10886
18031

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