Iron free permanent magnet systems for charged particle beam optics

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The strength and astounding simplicity of certain permanent magnet materials allow a wide variety of simple, compact configurations of high field strength and quality multipole magnets. Here we analyze the important class of iron-free permanent magnet systems for charged particle beam optics. The theory of conventional segmented multipole magnets formed from uniformly magnetized block magnets placed in regular arrays about a circular magnet aperture is reviewed. Practical multipole configurations resulting are presented that are capable of high and intermediate aperture field strengths. A new class of elliptical aperture magnets is presented within a model with continuously varying magnetization angle. Segmented ... continued below

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32 p.

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Lund, S. M. & Halbach, K. September 3, 1995.

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Description

The strength and astounding simplicity of certain permanent magnet materials allow a wide variety of simple, compact configurations of high field strength and quality multipole magnets. Here we analyze the important class of iron-free permanent magnet systems for charged particle beam optics. The theory of conventional segmented multipole magnets formed from uniformly magnetized block magnets placed in regular arrays about a circular magnet aperture is reviewed. Practical multipole configurations resulting are presented that are capable of high and intermediate aperture field strengths. A new class of elliptical aperture magnets is presented within a model with continuously varying magnetization angle. Segmented versions of these magnets promise practical high field dipole and quadrupole magnets with an increased range of applicability.

Physical Description

32 p.

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INIS; OSTI as DE96003120

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  • 6. conference on the economic and environmental aspects of coal utilization, Santa Barbara, CA (United States), 29 Jan - 2 Feb 1995

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  • Other: DE96003120
  • Report No.: UCRL-JC--121454
  • Report No.: CONF-950149--10
  • Grant Number: AC03-76SF00098;W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 162195
  • Archival Resource Key: ark:/67531/metadc626239

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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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  • September 3, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Oct. 3, 2017, 1:06 p.m.

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Lund, S. M. & Halbach, K. Iron free permanent magnet systems for charged particle beam optics, article, September 3, 1995; California. (digital.library.unt.edu/ark:/67531/metadc626239/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.