Lattice Development for Pep-X High Brightness Light Source

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Design of PEP-X high brightness light source machine is under development at SLAC. The PEP-X is a proposed replacement for the PEP-II in the existing 2.2 km tunnel. Two of the PEP-X six arcs contain DBA type lattice providing 30 dispersion free straights suitable for 3.5 m long undulators. The lattice contains TME cells in the other four arcs and 89.3 m wiggler in a long straight section yielding a horizontal emittance of {approx}0.1 nm-rad at 4.5 GeV. The recent lattice modifications are aimed at increasing the predicted brightness and improving beam dynamic properties. The standard DBA cells are modified ... continued below

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Nosochkov, Yuri; /SLAC; Cai, Yunhai; /SLAC; Wang, Min-Huey & /SLAC August 25, 2010.

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Design of PEP-X high brightness light source machine is under development at SLAC. The PEP-X is a proposed replacement for the PEP-II in the existing 2.2 km tunnel. Two of the PEP-X six arcs contain DBA type lattice providing 30 dispersion free straights suitable for 3.5 m long undulators. The lattice contains TME cells in the other four arcs and 89.3 m wiggler in a long straight section yielding a horizontal emittance of {approx}0.1 nm-rad at 4.5 GeV. The recent lattice modifications are aimed at increasing the predicted brightness and improving beam dynamic properties. The standard DBA cells are modified into supercells for providing low-{beta} undulator straights. The DBA and TME cell phase advance is better optimized. Harmonic sextupoles are added to minimize the sextupole driven resonance effects and amplitude dependent tune shift. Finally, the injection scheme is changed from vertical to horizontal plane in order to avoid large vertical amplitudes of injected beam within small vertical aperture of undulators.

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  • Journal Name: Conf.Proc.C100523:WEPEA073,2010; Conference: 1st International Particle Accelerator Conference: IPAC'10, 23-28 May 2010, Kyoto, Japan

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  • Report No.: SLAC-PUB-14140
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 992975
  • Archival Resource Key: ark:/67531/metadc1012710

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  • August 25, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 2, 2017, 8:13 p.m.

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Nosochkov, Yuri; /SLAC; Cai, Yunhai; /SLAC; Wang, Min-Huey & /SLAC. Lattice Development for Pep-X High Brightness Light Source, article, August 25, 2010; [California]. (digital.library.unt.edu/ark:/67531/metadc1012710/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.