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RIS citation export for MOPAB014: First High Spin-Flip Efficiency for High Energy Polarized Protons

TY  - CONF
AU  - Huang, H.
AU  - Kewisch, J.
AU  - Liu, C.
AU  - Marusic, A.
AU  - Meng, W.
AU  - Méot, F.
AU  - Oddo, P.
AU  - Ptitsyn, V.
AU  - Ranjbar, V.H.
AU  - Roser, T.
ED  - Liu, Lin
ED  - Byrd, John M.
ED  - Neuenschwander, Regis T.
ED  - Picoreti, Renan
ED  - Schaa, Volker R. W.
TI  - First High Spin-Flip Efficiency for High Energy Polarized Protons
J2  - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021
CY  - Campinas, SP, Brazil
T2  - International Particle Accelerator Conference
T3  - 12
LA  - english
AB  - In order to minimize the systematic errors for the Relativistic Heavy Ion Collider (RHIC) spin physics experiments, flipping the spin of each bunch of protons during the stores is needed. Experiments done with single RF magnet at energies less than 2 GeV have demonstrated a spin-flip efficiency over 99%. At high energy colliders with Siberian snakes, a single magnet spin flipper does not work because of the large spin tune spread and the generation of multiple, overlapping resonances. Over past decade, RHIC spin flipper design has evolved and a sophisticated spin flipper, constructed of nine-dipole magnets, was developed to flip the spin in RHIC. A special optics choice was also used to make the spin tune spread very small. In recent experiment, 97% spin-flip efficiency was measured at both 24 and 255 GeV for the first time. The results show that efficient spin flipping can be achieved at high energies.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 84
EP  - 86
KW  - polarization
KW  - resonance
KW  - dipole
KW  - proton
KW  - experiment
DA  - 2021/08
PY  - 2021
SN  - 2673-5490
SN  - 978-3-95450-214-1
DO  - doi:10.18429/JACoW-IPAC2021-MOPAB014
UR  - https://jacow.org/ipac2021/papers/mopab014.pdf
ER  -