Frequency Map Studies for the ILC Damping Rings

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Designing a lattice with sufficient dynamic aperture for theILCDamping Rings is very challenging as the lattice needs to provide asmall equilibrium emittance and at the same time a large aperture for theinjected beam (including a large momentum acceptance). In addition,outside constraints have forced layout changes in the damping ring. Someof the layout changes had an impact on thedynamic aperture. In order tobetter understand the changes indynamic aperture, frequency maps arestudied. Those studies can help in identifying the reason for the changeddynamic apertureand in finding a good location for the betatron tunes anddetermining an upper limit for the chromaticities. A summary ... continued below

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Reichel, Ina June 20, 2007.

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Designing a lattice with sufficient dynamic aperture for theILCDamping Rings is very challenging as the lattice needs to provide asmall equilibrium emittance and at the same time a large aperture for theinjected beam (including a large momentum acceptance). In addition,outside constraints have forced layout changes in the damping ring. Someof the layout changes had an impact on thedynamic aperture. In order tobetter understand the changes indynamic aperture, frequency maps arestudied. Those studies can help in identifying the reason for the changeddynamic apertureand in finding a good location for the betatron tunes anddetermining an upper limit for the chromaticities. A summary of recentstudies and suggestions for improving the dynamic aperture bychoosing adifferent tune are presented.

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  • 22nd Particle Accelerator Conference, Albquerque,NM, June 25-29 2007

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  • Report No.: LBNL--63066
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 928441
  • Archival Resource Key: ark:/67531/metadc893311

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Office of Scientific & Technical Information Technical Reports

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  • June 20, 2007

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 4:05 p.m.

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Reichel, Ina. Frequency Map Studies for the ILC Damping Rings, article, June 20, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc893311/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.