Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The construction of the Fiber-SiPM beam monitor system of the R484 and
  R582 experiments at the RIKEN-RAL muon facility   The scintillating fiber-SiPM beam monitor detectors, designed to deliver beam
informations for the R484 and R582 experiments at the high intensity, low
energy pulsed muon beam at the RIKEN-RAL facility, have been successfully
constructed and operated. Details on their construction and first performances
in beam are reported

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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
1
The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn