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Title: Permanent quadrupole magnets

Abstract

A family of quadrupole magnets using a soft iron return yoke and circular cross-section permanent magnet poles were fabricated to investigate the feasibility for use in ion or electron beam focusing applications in accelerators and transport lines. Magnetic field measurements yielded promising results. In fixed-field applications, permanent magnets with sufficient gradients would be a low cost substitute for conventional electromagnets, eliminating the need for power supplies, associated wiring, and cooling. Based on preliminary tests, it was seen that permanent quadrupole magnets can offer a low cost, reliable solution in applications requiring small, fixed-field focusing devices for use in ion or electron-beam transport systems. Permanent magnets do require special considerations in design, fabrication, handling, and service that are different than encountered in conventional quadrupole magnets. If these basic conditions are satisfied, the resulting beam-focusing device would be stable, maintenance free, with virtually an indefinite lifetime.

Authors:
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
7237008
Report Number(s):
LA-UR-76-1986; CONF-760942-3
TRN: 77-004472
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Conference on proton linear accelerator, Ontario, Canada, 14 Sep 1976
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM FOCUSING MAGNETS; FABRICATION; FEASIBILITY STUDIES; MAGNETIC FIELDS; PERMANENT MAGNETS; QUADRUPOLES; TESTING; MAGNETS; MULTIPOLES; 430300* - Particle Accelerators- Auxiliaries & Components

Citation Formats

Bush, Jr, E D. Permanent quadrupole magnets. United States: N. p., 1976. Web.
Bush, Jr, E D. Permanent quadrupole magnets. United States.
Bush, Jr, E D. Thu . "Permanent quadrupole magnets". United States. https://www.osti.gov/servlets/purl/7237008.
@article{osti_7237008,
title = {Permanent quadrupole magnets},
author = {Bush, Jr, E D},
abstractNote = {A family of quadrupole magnets using a soft iron return yoke and circular cross-section permanent magnet poles were fabricated to investigate the feasibility for use in ion or electron beam focusing applications in accelerators and transport lines. Magnetic field measurements yielded promising results. In fixed-field applications, permanent magnets with sufficient gradients would be a low cost substitute for conventional electromagnets, eliminating the need for power supplies, associated wiring, and cooling. Based on preliminary tests, it was seen that permanent quadrupole magnets can offer a low cost, reliable solution in applications requiring small, fixed-field focusing devices for use in ion or electron-beam transport systems. Permanent magnets do require special considerations in design, fabrication, handling, and service that are different than encountered in conventional quadrupole magnets. If these basic conditions are satisfied, the resulting beam-focusing device would be stable, maintenance free, with virtually an indefinite lifetime.},
doi = {},
url = {https://www.osti.gov/biblio/7237008}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Conference:
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