Alternate Lattice Design for Advanced Photon Source Multi-Bend Achromat Upgrade

Title: Alternate Lattice Design for Advanced Photon Source Multi-Bend Achromat Upgrade

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Abstract

A 67-pm hybrid-seven-bend achromat (H7BA) lattice is proposed for a futureAdvanced Photon Source (APS)multibend- achromat (MBA) upgrade. This lattice requires use of a swap-out (on-axis) injection scheme. Alternate lattice design work has also been performed to achieve better beam dynamics performance than the nominal APS MBA lattice, in order to allow beam accumulation. One of such alternate H7BA lattice designs, which still targets a very low emittance of 76 pm, is discussed in this paper. With these lattices, existing APS injector complex can be employed without the requirement of a very high charge operation. Studies show that an emittance below 76 pm can be achieved with the employment of reverse bends in an alternate lattice. We discuss the predicted performance and requirements for these lattices and compare them to the nominal lattice.

Authors:: Sun, Yipeng; Borland, Michael

Publication Date:: 2015-01-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1335916

DOE Contract Number:: AC02-06CH11357

Resource Type:: Conference

Resource Relation:: Conference: 6th International Particle Accelerator Conference (IPAC 2015), 05/03/15 - 05/08/15, Richmond, VA

Country of Publication:: United States

Language:: English

Citation Formats


                    Sun, Yipeng, and Borland, Michael. Alternate Lattice Design for Advanced Photon Source Multi-Bend Achromat Upgrade.  United States: N. p., 2015. 
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                    Sun, Yipeng, & Borland, Michael. Alternate Lattice Design for Advanced Photon Source Multi-Bend Achromat Upgrade.  United States.

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                    Sun, Yipeng, and Borland, Michael. Thu .  
        "Alternate Lattice Design for Advanced Photon Source Multi-Bend Achromat Upgrade".  United States.

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@article{osti_1335916,

  title        = {Alternate Lattice Design for Advanced Photon Source Multi-Bend Achromat Upgrade},

  author       = {Sun, Yipeng and Borland, Michael},

  abstractNote = {A 67-pm hybrid-seven-bend achromat (H7BA) lattice is proposed for a futureAdvanced Photon Source (APS)multibend- achromat (MBA) upgrade. This lattice requires use of a swap-out (on-axis) injection scheme. Alternate lattice design work has also been performed to achieve better beam dynamics performance than the nominal APS MBA lattice, in order to allow beam accumulation. One of such alternate H7BA lattice designs, which still targets a very low emittance of 76 pm, is discussed in this paper. With these lattices, existing APS injector complex can be employed without the requirement of a very high charge operation. Studies show that an emittance below 76 pm can be achieved with the employment of reverse bends in an alternate lattice. We discuss the predicted performance and requirements for these lattices and compare them to the nominal lattice.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/1335916},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2015},

  month        = {1}

}

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