TERMINATION OF IDEAL COS m phi WINDING

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Configurations are proposed, and illustrated, for terminating the 'cosine {phi}' windings of an ideal iron-free dipole magnet so as to preserve the quality of the internal field integrated (vs. z) through the entire magnet. The end windings are placed on a surface of the same radius as that on which the conductors lie in the central (2-D) portion of the structure. The desired pure dipole quality of the integrated field then is assured by requiring that the z-component of current, after projection onto the y-z plane, shall have in that plane a density distribution whose integral is independent of y. ... continued below

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28 p.

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Laslett, L.J.; Caspi, S. & Helm, M. April 1, 1986.

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Configurations are proposed, and illustrated, for terminating the 'cosine {phi}' windings of an ideal iron-free dipole magnet so as to preserve the quality of the internal field integrated (vs. z) through the entire magnet. The end windings are placed on a surface of the same radius as that on which the conductors lie in the central (2-D) portion of the structure. The desired pure dipole quality of the integrated field then is assured by requiring that the z-component of current, after projection onto the y-z plane, shall have in that plane a density distribution whose integral is independent of y. As a result of the analysis, end-winding configurations that satisfy this requirement are proposed in which each conductor filament follows through the transition region a locus whose y-z projection is of the form z(y;Y{sub 0}) = f(y{sub 0}) - f(y-y{sub 0}), with f(0) = 0, wherein Y{sub 0} serves as an index to identify the location of the filament in the central (2-D) portion of the structure. Simple solutions of this nature are indicated in which the function f has the form f(y-y{sub 0}) = k (y-y{sub 0}{sup p}/a) for windings on the surface of a cylinder of radius {und a}, with p < 1 (and preferably p {le} 1/2) to ensure a smooth transition into the end region. The straightforward extension of these results to configurations for the production of integrated fields of higher multipolarity also is indicated.

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28 p.

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  • Report No.: LBL-21370
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 1000475
  • Archival Resource Key: ark:/67531/metadc830744

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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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  • April 1, 1986

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • June 15, 2016, 9:46 p.m.

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Laslett, L.J.; Caspi, S. & Helm, M. TERMINATION OF IDEAL COS m phi WINDING, article, April 1, 1986; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc830744/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.