Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: R&D status of FPCCD VTX   As a candidate of the vertex detector for experiments at ILC, fully depleted
fine pixel CCDs (FPCCDs) are under development. We describe the basic concept
of the FPCCD and report on preliminary results of the performance study of the
first prototype FPCCD sensors.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an