MEASUREMENT OF NON-LINEARITIES USING SPECTRUM ANALYSIS OF DRIVEN BETATRON OSCILLATION.

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Resonance driving terms can be derived from the frequency analysis of turn-by-turn betatron oscillation data. This paper demonstrates that the same information can also be drawn from the spectral analysis of a driven oscillation adiabatically excited by an rf dipole. The advantage of this method is that a large betatron oscillation amplitude can be sustained without loosing the coherence signal. The frequency spectrum of the driven oscillation is composed of multiples of the rf dipole modulation frequency which can be interpreted as resonance driving terms. This analysis has been applied to the data taken at the Brookhaven AGS. The adiabatically ... continued below

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3 pages

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BAI,M.; BLASKIEWICZ,M.; LEHRACH,A.; ROSER,T.; SCHMIDT,F. & VAN ASSELT,W. June 18, 2001.

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Resonance driving terms can be derived from the frequency analysis of turn-by-turn betatron oscillation data. This paper demonstrates that the same information can also be drawn from the spectral analysis of a driven oscillation adiabatically excited by an rf dipole. The advantage of this method is that a large betatron oscillation amplitude can be sustained without loosing the coherence signal. The frequency spectrum of the driven oscillation is composed of multiples of the rf dipole modulation frequency which can be interpreted as resonance driving terms. This analysis has been applied to the data taken at the Brookhaven AGS. The adiabatically excited coherent oscillation is also very useful in measuring the betatron tune parasitically. The data taken during the AGS high intensity proton program is also presented.

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3 pages

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INIS; OSTI as DE00788173

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  • PARTICLE ACCELERATOR CONFERENCE 2001, CHICAGO, IL (US), 06/18/2001--06/22/2001

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  • Report No.: BNL--67944
  • Report No.: KA0201
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 788173
  • Archival Resource Key: ark:/67531/metadc723392

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  • June 18, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Nov. 9, 2015, 1:05 p.m.

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BAI,M.; BLASKIEWICZ,M.; LEHRACH,A.; ROSER,T.; SCHMIDT,F. & VAN ASSELT,W. MEASUREMENT OF NON-LINEARITIES USING SPECTRUM ANALYSIS OF DRIVEN BETATRON OSCILLATION., article, June 18, 2001; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc723392/: accessed November 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.