| 摘要 |
There is provided a high-performance magnetic core with a high mu'Qf-value for an RF accelerating. The strip wound magnetic core has a thin strip of nanocrystalline soft magnetic alloy, whose bcc solid solution with an average grain size less than 100 nm has a volume fraction more than 50% of the whole structure of the alloy, and around which an interlayer insulation film at least on one side thereof. A gap is formed in at least a part of a magnetic path of the magnetic core. Stack cores formed by arranging in series a plurality of the magnetic cores are oppositely installed via a high-voltage gap, making it possible to provide an excellent RF accelerating cavity.
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