Title :
Variable-field permanent-magnet quadrupole for the SSC
Author :
Barlow, David B. ; Kraus, Robert H., Jr. ; Martinez, Ricardo P. ; Meyer, Ross E.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
fDate :
7/1/1994 12:00:00 AM
Abstract :
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° rotation of the outer ring of iron and magnet material
Keywords :
beam handling equipment; iron; linear accelerators; permanent magnets; proton accelerators; 0.7 to 4.3 T; NdFeB; SSC linac matching section; Superconducting Super Collider; fixed core; quadrupole gradient-length product; variable-field permanent-magnet quadrupole; Apertures; Assembly; Iron; Laboratories; Linear particle accelerator; Magnetic cores; Magnetic field measurement; Magnetic materials; Testing; US Department of Energy;
Journal_Title :
Magnetics, IEEE Transactions on
