A Design Library of Magnet Support - a Proposal -

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Although the ideal and universal support system has not been invented yet, there are many implementations which fulfill most of alignment's requirements. However, inventing a new support system seems to represent the last design challenge, why would we otherwise witness so many new attempts. Already Plato reminded his scholars that one should learn from the past. Unfortunately, learning from previous designs and implementations doesn't seem to carry much attraction. Or it is that we, the customers, are not doing our job by letting the design engineer know what we would like to see done, what we think works, and what ... continued below

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18 pages

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Ruland, Robert E. & /SLAC August 16, 2005.

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Description

Although the ideal and universal support system has not been invented yet, there are many implementations which fulfill most of alignment's requirements. However, inventing a new support system seems to represent the last design challenge, why would we otherwise witness so many new attempts. Already Plato reminded his scholars that one should learn from the past. Unfortunately, learning from previous designs and implementations doesn't seem to carry much attraction. Or it is that we, the customers, are not doing our job by letting the design engineer know what we would like to see done, what we think works, and what is already there. This contribution is an initiative to create a reference for support systems which exist in our laboratories and we know do work. Such an undertaking will require everybody's active support and feedback. I already have to thank my peers at many laboratories who helped me put together this first draft. Only if a more or less complete library of existing designs can be compiled with easy access to drawings can we then hope that the support system design competition looses its challenge. As alignment tolerances get ever tighter, the interplay of alignment with mechanical engineering becomes ever more important. In fact, accelerator alignment has advanced so far that mechanical uncertainties now exceed observational uncertainties. Of the mechanical issues bearing upon alignment, one of the most crucial is the magnet supports; these must provide both stability and a fineness of motion substantially exceeding the final alignment tolerances. Magnet supports are the interface that allows mechanical mounting of components and their subsequent alignment to a nominal position in three-dimensional space. Supports thus provide two functions: that of a spacer to bring the component close to its ideal position, and that of a fine motion system to enable the surveyor to move the component to its ideal location within the required tolerance. It is essential to understand that Magnets, Supports, and Survey and Alignment are interrelated. Ideally, one person would be responsible for all these functions. In larger projects, beyond the scope of one such manager, the responsible parties must be in regular communication. A magnet designed without supports in mind can be quite impossible to hold onto. A support system that holds the magnets up, but requires a hammer to operate, renders impossible the achievement of tight tolerances. Magnets, Supports, and Survey and Alignment must be designed as a system.

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18 pages

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  • Contributed to4th International Workshop On Accelerator Alignment (IWAA 95), Tsukuba, Japan, 14-17 Nov 1995

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  • Report No.: SLAC-PUB-11426
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 878783
  • Archival Resource Key: ark:/67531/metadc880764

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  • August 16, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 5, 2016, 1:57 p.m.

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Ruland, Robert E. & /SLAC. A Design Library of Magnet Support - a Proposal -, article, August 16, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc880764/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.