Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Investigation on Cooling of CZT Co-Planar Grid Detectors   The effect of moderate cooling on CdZnTe semiconductor detectors has been
studied for the COBRA experiment. Improvements in energy resolution and low
energy threshold were observed and quantified as a function of temperature.
Leakage currents are found to contribute typically $\sim$5 keV to the widths of
photopeaks.

30
The categories of this paper are: q-alg
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs