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Title: Variable-field permanent magnet quadrupole for the SSC

A set of compact variable-field permanent-magnet quadrupoles have been designed, fabricated, and tested for use In the SSC linac matching section. The quadrupoles have 24 mm-diameter apertures and 40 mm-long poles. The hybrid (permanent-magnet and iron) design, uses a fixed core of magnet material (NdFeB) and iron (C-1006) surrounded by a rotating ring of the same magnet material and iron. The quadrupole gradient-length product can be smoothly varied from a minimum of 0.7 T up to a maximum, of 4.3 T by a 90{degrees} rotation of the outer ring of iron and magnet material.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
10193680
Report Number(s):
LA-UR--93-3254; CONF-930926--3
ON: DE94000795; TRN: 93:023029
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 13. international conference on magnet technology,Victoria (Canada),20-24 Sep 1993; Other Information: PBD: [1993]
Research Org:
Los Alamos National Lab., NM (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; QUADRUPOLES; DESIGN; PERFORMANCE TESTING; SUPERCONDUCTING SUPER COLLIDER; BEAM FOCUSING MAGNETS; PERMANENT MAGNETS; NIOBIUM; IRON; BORON 430300; AUXILIARIES AND COMPONENTS