Concepts for the PEP-X Light Source

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SSRL and SLAC groups are developing a long-range plan to transfer its evolving scientific programs from the SPEAR3 light source to a much higher performing photon source that would be housed in the 2.2-km PEP-II tunnel. While various concepts for the PEP-X light source are under consideration, including ultimate storage ring and ERL configurations, the present baseline design is a very low-emittance storage ring. A hybrid lattice has double bend achromat (DBA) cells in two of the six arcs that provide a total 30 straight sections for insertion device (ID) beam lines extending into two new experimental halls. The remaining ... continued below

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3 pages

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Hettel, Robert; Bane, Karl; Bertsche, Kirk; Cai, Yunhai; Chao, Alex; Dolgashev, Valery et al. August 26, 2010.

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SSRL and SLAC groups are developing a long-range plan to transfer its evolving scientific programs from the SPEAR3 light source to a much higher performing photon source that would be housed in the 2.2-km PEP-II tunnel. While various concepts for the PEP-X light source are under consideration, including ultimate storage ring and ERL configurations, the present baseline design is a very low-emittance storage ring. A hybrid lattice has double bend achromat (DBA) cells in two of the six arcs that provide a total 30 straight sections for insertion device (ID) beam lines extending into two new experimental halls. The remaining arcs contain TME cells. Using 90 m of damping wigglers the horizontal emittance at 4.5 GeV would be 100 pm-rad with 1.5-A stored beam. PEP-X will produce photon beams having brightnesses near 10{sup 22} (ph/s/mm{sup 2}/mrad{sup 2}/0.1% BW) at 10 keV. Studies indicate that a 90-m undulator could have FEL gain and brightness enhancement at soft x-ray wavelengths with the stored beam. Crab cavities or other beam manipulation systems could be used to reduce bunch length or otherwise enhance photon emission properties. The present status of the design of PEP-X as a storage ring is presented.

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  • Journal Name: Submitted to PAC09 Proceedings; Conference: Partcle Accelerators Conference (PAC 09), 4-8 May 2009. Vancouver, BC, Canada

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  • Report No.: SLAC-PUB-14175
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 992949
  • Archival Resource Key: ark:/67531/metadc1015392

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  • August 26, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 2, 2017, 7:31 p.m.

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Hettel, Robert; Bane, Karl; Bertsche, Kirk; Cai, Yunhai; Chao, Alex; Dolgashev, Valery et al. Concepts for the PEP-X Light Source, article, August 26, 2010; [California]. (digital.library.unt.edu/ark:/67531/metadc1015392/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.