Fixing the Closed Orbits in the Debuncher

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Description

Without a large number of new trims the best way to fix the closed orbits in the debuncher is to move quads. There are some obvious features in the vertical orbit, Figure 1, that look like they are indeed orbit distortions. The horizontal orbit, Figure 2, also has some systematic features that can be removed by moving a small number of quads. It is likely that removing these orbit distortions will help in improving the aperture. In addition, the second order effects of such large offsets in the closed orbit, like changes in phase advance due to the sextapoles, could ... continued below

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8 pages

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Halling, Mike April 5, 1991.

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Description

Without a large number of new trims the best way to fix the closed orbits in the debuncher is to move quads. There are some obvious features in the vertical orbit, Figure 1, that look like they are indeed orbit distortions. The horizontal orbit, Figure 2, also has some systematic features that can be removed by moving a small number of quads. It is likely that removing these orbit distortions will help in improving the aperture. In addition, the second order effects of such large offsets in the closed orbit, like changes in phase advance due to the sextapoles, could improve operations.

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8 pages

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  • Report No.: FERMILAB-PBAR-NOTE-508
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/983974 | External Link
  • Office of Scientific & Technical Information Report Number: 983974
  • Archival Resource Key: ark:/67531/metadc1013106

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • April 5, 1991

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 24, 2017, 2:16 p.m.

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Halling, Mike. Fixing the Closed Orbits in the Debuncher, report, April 5, 1991; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc1013106/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.