Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of SPIRAL 2 High intensity Radiofrequency Cooler: Cooling of very
  high intensity ion beams   The experimental study of Spiral-2 High Intensity Radiofrequency Cooler
prototype (SHIRaC) is the goal of this paper.

33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin