Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of measuring methods on spatial resolution of a GEM imaging
  detector   In this paper, limitations of the common method measuring intrinsic spatial
resolution of the GEM imaging detector are presented. Through theoretical
analysis and experimental verification, we have improved the common method to
avoid these limitations. Using these improved methods, more precise measurement
of intrinsic spatial resolution are obtained.

22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat