Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of dE/dx resolution of TPC prototype with gating GEM exposed
  to an electron beam   The Time Projection Chamber (TPC) can identify particle species using the
energy loss (dE/dx) measured by the readout pad rows. The dE/dx resolution for
the ILD (International Large Detector) -TPC for the International Linear
Collider experiment is expected to have high resolution for clear
identification. The dE/dx resolution of our prototype TPC with gating device
(gating GEM) to suppress ions feedback was measured using the electron test
beam in a magnet field at the facility in DESY. The dE/dx resolution for
ILD-TPC was estimated using this test beam data. The signal charge was measured
as a function of the incident angle of the beam. In this paper, we report on
the measurement of the signal charge and of the dE/dx resolution.

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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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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: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: math
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The categories of this paper are: nlin
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: ao-sci