Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Test of Ultra Fast Silicon Detectors for Picosecond Time Measurements
  with a New Multipurpose Read-Out Board   Ultra Fast Silicon Detectors (UFSD) are sensors optimized for timing
measurements employing a thin multiplication layer to increase the output
signal. A multipurpose read-out board hosting a low-cost, low-power fast
amplifier was designed at the University of Kansas and tested at the European
Organization for Nuclear Research (CERN) using a 180 GeV pion beam. The
amplifier has been designed to read out a wide range of detectors and it was
optimized in this test for the UFSD output signal. In this paper we report the
results of the experimental tests using 50 $\rm{\mu m}$ thick UFSD with a
sensitive area of 1.4 $\rm{mm^2}$. A timing precision below 30 ps was achieved.

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The categories of this paper are: dg-ga
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The categories of this paper are: math
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin