Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Design Studies for a TPC Readout Plane Using Zigzag Patterns with
  Multistage GEM Detectors   A new Time Projection Chamber (TPC) is currently under development for the
sPHENIX experiment at RHIC. The TPC will be read out using multistage GEM
detectors on each end and will be divided into approximately 40 pad layers in
radius. Each pad layer is required to provide a spatial resolution of ~250
microns, which must be achieved with a minimal channel count in order to
minimize the overall cost of the detector. The current proposal is to make the
pads into a zigzag shape in order to enhance charge sharing among neighboring
pads. This will allow for the possibility to interpolate the hit position to
high precision, resulting in a position resolution many times better than the
2mm pitch of the readout pads. This paper discusses various simulation studies
that were carried out to optimize the size and shape of the zigzag pads for the
readout board for the TPC, along with the technical challenges in fabricating
it. It also describes the performance of the first prototype readout board
obtained from measurements carried out in the laboratory using a highly
collimated X-ray source.

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The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
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The categories of this paper are: econ
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg