Application of the lie-transform perturbation theory for the turn-by-turn data analysis

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Harmonic analysis of turn-by-turn BPM data is a rich source of information on linear and nonlinear optics in circular machines. In the present report the normal form approach first introduced by R. Bartolini and F. Schmidt is extended on the basis of the Lie-transform perturbation theory to provide direct relation between the sources of perturbation and observable spectra of betatron oscillations. The goal is to localize strong perturbing elements, find the resonance driving terms--both absolute value and phase--that are necessary for calculation of the required adjustments in correction magnet circuits: e.g. skew-quadrupoles for linear coupling correction. The theory is nonlinear ... continued below

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3 pages

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Alexahin, Y. & /Fermilab June 1, 2006.

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Harmonic analysis of turn-by-turn BPM data is a rich source of information on linear and nonlinear optics in circular machines. In the present report the normal form approach first introduced by R. Bartolini and F. Schmidt is extended on the basis of the Lie-transform perturbation theory to provide direct relation between the sources of perturbation and observable spectra of betatron oscillations. The goal is to localize strong perturbing elements, find the resonance driving terms--both absolute value and phase--that are necessary for calculation of the required adjustments in correction magnet circuits: e.g. skew-quadrupoles for linear coupling correction. The theory is nonlinear and permits to analyze higher order effects, such as coupling contribution to beta-beating and nonlinear sum resonances.

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3 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.: FERMILAB-CONF-06-201-AD
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 892409
  • Archival Resource Key: ark:/67531/metadc884139

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  • June 1, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 8:18 p.m.

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Alexahin, Y. & /Fermilab. Application of the lie-transform perturbation theory for the turn-by-turn data analysis, article, June 1, 2006; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc884139/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.