Alignment of the Stanford Linear Collider Arcs: Concepts and results

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The alignment of the Arcs for the Stanford Linear Collider at SLAC has posed problems in accelerator survey and alignment not encountered before. These problems come less from the tight tolerances of 0.1 mm, although reaching such a tight statistically defined accuracy in a controlled manner is difficult enough, but from the absence of a common reference plane for the Arcs. Traditional circular accelerators, including HERA and LEP, have been designed in one plane referenced to local gravity. For the SLC Arcs no such single plane exists. Methods and concepts developed to solve these and other problems, connected with the ... continued below

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Pages: 4

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Pitthan, R.; Bell, B.; Friedsam, H.; Pietryka, M.; Oren, W. & Ruland, R. February 1, 1987.

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Description

The alignment of the Arcs for the Stanford Linear Collider at SLAC has posed problems in accelerator survey and alignment not encountered before. These problems come less from the tight tolerances of 0.1 mm, although reaching such a tight statistically defined accuracy in a controlled manner is difficult enough, but from the absence of a common reference plane for the Arcs. Traditional circular accelerators, including HERA and LEP, have been designed in one plane referenced to local gravity. For the SLC Arcs no such single plane exists. Methods and concepts developed to solve these and other problems, connected with the unique design of SLC, range from the first use of satellites for accelerator alignment, use of electronic laser theodolites for placement of components, computer control of the manual adjustment process, complete automation of the data flow incorporating the most advanced concepts of geodesy, strict separation of survey and alignment, to linear principal component analysis for the final statistical smoothing of the mechanical components.

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Pages: 4

Notes

NTIS, PC A02; 3.

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  • Particle accelerator conference, Washington, DC, USA, 16 Mar 1987

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  • Other: DE87010318
  • Report No.: SLAC-PUB-4208
  • Report No.: CONF-870302-199
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 6152338
  • Archival Resource Key: ark:/67531/metadc1112321

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • February 1, 1987

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • May 25, 2018, 1:23 p.m.

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Pitthan, R.; Bell, B.; Friedsam, H.; Pietryka, M.; Oren, W. & Ruland, R. Alignment of the Stanford Linear Collider Arcs: Concepts and results, article, February 1, 1987; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc1112321/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.