Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Performance of a large aperture GEM-like gating device for the
  International Linear Collider   One of the potential problems of a Micro-Pattern Gaseous Detector
(MPGD)-based Time Projection Chamber (TPC) is the Ion back Flow (IBF): ions
generated through the avalanche amplification process flow back to the drift
volume of the TPC and disarrange an electric field inside it. Consequently
non-negligible degradation of azimuthal spatial resolution is caused due to
this IBF. Meanwhile, it is necessary to collect primary ionized electrons to
maintain intrinsic performance of the MPGDs. The MPGD based TPC is currently
planned to be used as a central tracking detector of the International Large
Detector (ILD), which is one of the detector concepts for the future
International Linear Collider (ILC) project, and which requires fine azimuthal
spatial resolution of less than 100 ${\rm \mu m}$ over the drift length of the
TPC to attain high momentum resolution. Because of a unique beam structure of
the ILC, the IBF is a critical issue for the realization of the ILD-TPC. Not
only to suppress the ion back-flow to the drift volume, but also to allow the
primary electrons pass through, a large aperture GEM-like gating device has
been developed. Several bench tests for confirming the performance of the
gating device have been conducted, besides that, beam test with the full
detector module equipped with the gating device was carried out to verify the
resolution that the full module can provide. As a result, it turned out that
the developed gating device fulfills requirements for maintaining the
performance of the MPGD based TPC, and it has sufficient performance for the
central tracker of the ILD at the ILC.

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The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
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The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: supr-con