Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perpendicularly Biased YIG Tuners for the Fermilab Recycler 52.809 MHz
  Cavities   For NOvA and future experiments requiring high intensity proton beams,
Fermilab is in the process of upgrading the existing accelerator complex for
increased proton production. One such improvement is to reduce the Main
Injector cycle time, by performing slip stacking, previously done in the Main
Injector, in the now repurposed Recycler Ring. Recycler slip stacking requires
new tuneable RF cavities, discussed separately in these proceedings. These are
quarter wave cavities resonant at 52.809 MHz with a 10 kHz tuning range. The 10
kHz range is achieved by use of a tuner which has an electrical length of
approximately one half wavelength at 52.809 MHz. The tuner is constructed from
3 1/8 inch diameter rigid coaxial line, with 5 inches of its length containing
perpendicularly biased, Al doped Yttrium Iron Garnet (YIG). The tuner design,
measurements, and high power test results are presented.

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The categories of this paper are: eess
4
The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an