Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High efficiency event-counting thermal neutron imaging using Gd doped
  micro channel plate   An event-counting thermal neutron imaging detector based on 3 mol % natGd2O3
doped micro channel plate (MCP) has been developed and tested. Thermal neutron
imaging experiment was carried out with a low flux neutron beam. Detection
efficiency of 33 % was achieved with only one doped MCP. The spatial resolution
of 72 {\mu}m RMS is currently limited by the readout anode. A detector with
larger area and improved readout method is now being developed.

27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc