Precision Measurement and Improvement of e+, e- Storage Rings

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Through horizontal and vertical excitations, we have been able to make a precision measurement of linear geometric optics parameters with a Model-Independent Analysis (MIA). We have also been able to build up a computer model that matches the real accelerator in linear geometric optics with an SVD-enhanced Least-square fitting process. Recently, with the addition of longitudinal excitation, we are able to build up a computer virtual machine that matches the real accelerators in linear optics including dispersion without additional fitting variables. With this optics-matched virtual machine, we are able to find solutions that make changes of selected normal and skew ... continued below

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4 pages

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Yan, Y.T.; Cai, Y.; Colocho, W.; Decker, F-J.; Seeman, J.; Sullivan, M. et al. June 27, 2006.

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Through horizontal and vertical excitations, we have been able to make a precision measurement of linear geometric optics parameters with a Model-Independent Analysis (MIA). We have also been able to build up a computer model that matches the real accelerator in linear geometric optics with an SVD-enhanced Least-square fitting process. Recently, with the addition of longitudinal excitation, we are able to build up a computer virtual machine that matches the real accelerators in linear optics including dispersion without additional fitting variables. With this optics-matched virtual machine, we are able to find solutions that make changes of selected normal and skew quadrupoles for machine optics improvement. It has made major contributions to improve PEP-II optics and luminosity. Examples from application to PEP-II machines will be presented.

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4 pages

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  • Presented at European Particle Accelerator Conference (EPAC 06), Edinburgh, Scotland, 26-30 Jun 2006

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  • Report No.: SLAC-PUB-11925
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 885276
  • Archival Resource Key: ark:/67531/metadc892028

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Office of Scientific & Technical Information Technical Reports

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  • June 27, 2006

Added to The UNT Digital Library

  • Sept. 23, 2016, 2:42 p.m.

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  • Nov. 30, 2016, 5:10 p.m.

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Yan, Y.T.; Cai, Y.; Colocho, W.; Decker, F-J.; Seeman, J.; Sullivan, M. et al. Precision Measurement and Improvement of e+, e- Storage Rings, article, June 27, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc892028/: accessed November 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.