Parameter Scaling and Practical Design of TME Lattice

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It is a challenge to produce a practical design of an electron storage ring with a theorectical minimum emittance (TME) lattice of ultra low emittance, e.g. several pico-meters, due to the very strong focusing and extremely large natural chromaticity associated to these lattice designs. To help dealing with this challenge, it is requisite to scale the parameters and look for a best solution. In this paper, the parameter scaling is summarized, and it is argued that, with the lattice configuration with defocusing quadrupole closer to the dipole or just defocusing dipole, one can reach a good balance of the low ... continued below

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15 pages

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Jiao, Yi; Cai, Yunhai; Chao, Alex & /SLAC /Beijing, Inst. High Energy Phys. /SLAC November 8, 2011.

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It is a challenge to produce a practical design of an electron storage ring with a theorectical minimum emittance (TME) lattice of ultra low emittance, e.g. several pico-meters, due to the very strong focusing and extremely large natural chromaticity associated to these lattice designs. To help dealing with this challenge, it is requisite to scale the parameters and look for a best solution. In this paper, the parameter scaling is summarized, and it is argued that, with the lattice configuration with defocusing quadrupole closer to the dipole or just defocusing dipole, one can reach a good balance of the low emittance and relative small natural chromaticity, with phase advance per half cell below {pi}/2. The 10 pm TME lattice for PEP-X is shown at last as demonstration of the design procedure.

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15 pages

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  • Journal Name: Submitted to Physical Review Special Topics - Accelerators and Beams

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  • Report No.: SLAC-PUB-14205
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 992918
  • Archival Resource Key: ark:/67531/metadc1015768

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Office of Scientific & Technical Information Technical Reports

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  • November 8, 2011

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 3, 2017, 1:29 p.m.

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Jiao, Yi; Cai, Yunhai; Chao, Alex & /SLAC /Beijing, Inst. High Energy Phys. /SLAC. Parameter Scaling and Practical Design of TME Lattice, article, November 8, 2011; [California]. (digital.library.unt.edu/ark:/67531/metadc1015768/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.