Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recent Progress of RF Cavity Study at Mucool Test Area   In order to develop an RF cavity that is applicable for a muon beam cooling
channel, a new facility, called Mucool Test Area (MTA) has been built at
Fermilab. MTA is a unique facility whose purpose is to test RF cavities in
various conditions. There are 201 and 805 MHz high power sources, a 4-Tesla
solenoid magnet, a cryogenic system including a Helium liquifier, an explosion
proof apparatus to operate gaseous/liquid Hydrogen, and a beam transport line
to send an intense H- beam from the Fermilab Linac accelerator to the MTA hall.
Recent activities at MTA will be discussed in this document.

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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: cs
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom