LINEAR AND NONLINEAR CORRECTIONS IN THE RHIC INTERACTION REGIONS.

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A method has been developed to measure operationally the linear and non-linear effects of the interaction region triplets, that gives access to the multipole content through the action kick, by applying closed orbit bumps and analysing tune and orbit shifts. This technique has been extensively tested and used during the RHIC operations in 2001. Measurements were taken at 3 different interaction regions and for different focusing at the interaction point. Non-linear effects up to the dodecapole have been measured as well as the effects of linear, sextupolar and octupolar corrections. An analysis package for the data processing has been developed ... continued below

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3 pages

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PILAT,F.; CAMERON,P.; PTITSYN,V. & KOUTCHOUK,J.P. June 2, 2002.

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A method has been developed to measure operationally the linear and non-linear effects of the interaction region triplets, that gives access to the multipole content through the action kick, by applying closed orbit bumps and analysing tune and orbit shifts. This technique has been extensively tested and used during the RHIC operations in 2001. Measurements were taken at 3 different interaction regions and for different focusing at the interaction point. Non-linear effects up to the dodecapole have been measured as well as the effects of linear, sextupolar and octupolar corrections. An analysis package for the data processing has been developed that through a precise fit of the experimental tune shift data (measured by a phase lock loop technique to better than 10{sup -5} resolution) determines the multipole content of an IR triplet.

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3 pages

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  • 2002 PARTICLE ACCELERATOR CONFERENCE, PARIS (FR), 06/02/2002--06/07/2002

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  • Report No.: BNL--69224
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 798560
  • Archival Resource Key: ark:/67531/metadc738838

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  • June 2, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 9, 2015, 12:57 p.m.

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PILAT,F.; CAMERON,P.; PTITSYN,V. & KOUTCHOUK,J.P. LINEAR AND NONLINEAR CORRECTIONS IN THE RHIC INTERACTION REGIONS., article, June 2, 2002; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc738838/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.