Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Uncertainty of Compton Backscattering Process   The uncertainty of Compton backscattering process is studied by virtue of
analytical formulas, and the special effects of variant energy spread and
energy drift on the systematic uncertainty estimation are also studied with
Monte Carlo sampling technique. These quantitative conclusions are especially
important for the understanding the uncertainty of beam energy measurement
system.

34
The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org