Design and Construction of the PEP-II Low Energy Ring

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We describe the design and construction status of theLow-Energy Ring (LER) of the PEP-II project, a collaboration of SLAC,LBNL, and LLNL. In the past year we have optimized LER parameters andstarted component fabrication. By reusing the original wigglers, we wereable to simplify the design of the distributed wiggler photon dump, whichmust dissipate 260 kW of power. The number of RF stations (eachcomprising a klystron powering two 476-MHz cavities) was reduced from 4to 3. We have begun fabrication of the arc vacuum system based on anextruded Al antechamber configuration with discrete photon stops andTSPs. The design of the straight section vacuum ... continued below

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Hsieh, H.; Yourd, R. & Zisman, M.S. June 1, 1996.

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Description

We describe the design and construction status of theLow-Energy Ring (LER) of the PEP-II project, a collaboration of SLAC,LBNL, and LLNL. In the past year we have optimized LER parameters andstarted component fabrication. By reusing the original wigglers, we wereable to simplify the design of the distributed wiggler photon dump, whichmust dissipate 260 kW of power. The number of RF stations (eachcomprising a klystron powering two 476-MHz cavities) was reduced from 4to 3. We have begun fabrication of the arc vacuum system based on anextruded Al antechamber configuration with discrete photon stops andTSPs. The design of the straight section vacuum components, to befabricated from stainless steel pipe, is also completed. Quadrupoles anddipoles are provided under a collaborative agreement with IHEP (Beijing);correctors and skew quadrupoles are built domestically and sextupoles arerefurbished from existing PEP magnets. LER commissioning will begin earlyin 1998.

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  • 1996 European Particle Accelerator Conference,Sitges, Spain, June 10-14, 1996

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  • Report No.: LBNL--39123
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 924775
  • Archival Resource Key: ark:/67531/metadc895321

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 1, 1996

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 4:04 p.m.

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Hsieh, H.; Yourd, R. & Zisman, M.S. Design and Construction of the PEP-II Low Energy Ring, article, June 1, 1996; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc895321/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.