Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A two dimensional position sensitive gas chamber with scanned charge
  transfer readout   We have constructed and tested a 2d position sensitive parallel-plate gas
ionization chamber with scanned charge transfer readout. The scan readout
method described here is based on the development of a new position dependent
charge transfer technique. It has been implemented by using gate strips
perpendicularly oriented to the collector strips. This solution reduces
considerably the number of electronic readout channels needed to cover large
detector areas. The use of a 25 micron thick kapton etched circuit allows high
charge transfer efficiency with a low gating voltage, consequently needing a
very simple commutating circuit. The present prototype covers 8 x 8 cm^2 with a
pixel size of 1.27 x 1.27 mm^2. Depending on the intended use and beam
characteristics a smaller effective pixel is feasible and larger active areas
are possible. This detector can be used for X-ray or other continuous beam
intensity profile monitoring.

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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: dg-ga