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Title: Finemet versus ferrite -- Pros and cons

There is a new magnetic alloy called Finemet which has very constant {mu}'{sub p}Qf up to {approximately} 2 kG and is very stable at high magnet flux density and temperature. It may be a good can-didate for high-gradient rf cavities. However, it has a rather low quality factor and is therefore very lossy. We compare the pros and cons of Finemet versus the common ferrite, when used in low-energy accelerating cavities, insertion for space-charge compensation, and barrier cavities.
Publication Date:
OSTI Identifier:
Report Number(s):
ON: DE00006802
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: 1999 Particle Accelerator Conference, New York City, March 29-April 2, 1999
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Sponsoring Org:
USDOE Office of Energy Research (ER)
Country of Publication:
United States
66 PHYSICS; 36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; Magnetic Materials; Magnetic Materials; Ferrite; Ferrite; Comparative Evaluations; Comparative Evaluations; Cavity Resonators; Cavity Resonators; Space Charge; Space Charge