Time evolution of fields in strontium ferrite permanent magnets
Field strengths for strontium ferrite permanent magnets built for the Fermilab Recycler and the 8 GeV transfer line have been measured for the past 4 years. The ferrite magnetization exhibits a time dependence parameterized by M1/M/sub 2/ = -9 /spl times/ 10/sup -4/ /spl times/ log (t/sub 1//t/sub 2...
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| creator | Volk, J.T. Brown, B.C. Foster, G.W. Fowler, W. Glass, H.D. Jackson, G.P. |
| description | Field strengths for strontium ferrite permanent magnets built for the Fermilab Recycler and the 8 GeV transfer line have been measured for the past 4 years. The ferrite magnetization exhibits a time dependence parameterized by M1/M/sub 2/ = -9 /spl times/ 10/sup -4/ /spl times/ log (t/sub 1//t/sub 2/) as determined from measurements of a gradient magnet. This parameterization has been checked against several other styles of permanent dipoles, and quadrupole magnets with good agreement. |
| doi_str_mv | 10.1109/PAC.2001.988062 |
| format | Conference Proceeding |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Apertures Ferrites Glass Magnetic field measurement Magnetization Magnetosphere Permanent magnets Production Strontium Time measurement |
| title | Time evolution of fields in strontium ferrite permanent magnets |
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