Finding the Magnetic Center of a Quadrupole to High Resolution

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In a companion pro, collposal it is proposed to align quadrupoles of a transport line to within transverse tolerances of 5 to 10 micrometers. Such a proposal is meaningful only if the effective magnetic center of such lenses can in fact be repeatably located with respect to some external mechanical tooling to comparable accuracy. It is the purpose of this note to describe some new methods and procedures that will accomplish this aim. It will be shown that these methods are capable of yielding greater sensitivity than the more traditional methods used in the past. The notion of the ''nodal'' ... continued below

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10 pages

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Fischer, G.E.; Cobb, J.K.; Jenson, D.R. & /SLAC August 12, 2005.

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Description

In a companion pro, collposal it is proposed to align quadrupoles of a transport line to within transverse tolerances of 5 to 10 micrometers. Such a proposal is meaningful only if the effective magnetic center of such lenses can in fact be repeatably located with respect to some external mechanical tooling to comparable accuracy. It is the purpose of this note to describe some new methods and procedures that will accomplish this aim. It will be shown that these methods are capable of yielding greater sensitivity than the more traditional methods used in the past. The notion of the ''nodal'' point is exploited.

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10 pages

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  • Presented at 1st Int. Workshop on Accelerator Alignment, Stanford, CA, 31 Jul - 2 Aug, 1989

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  • Report No.: SLAC-PUB-11412
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 878793
  • Archival Resource Key: ark:/67531/metadc880977

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Office of Scientific & Technical Information Technical Reports

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  • August 12, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 28, 2016, 4:20 p.m.

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Fischer, G.E.; Cobb, J.K.; Jenson, D.R. & /SLAC. Finding the Magnetic Center of a Quadrupole to High Resolution, article, August 12, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc880977/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.