Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-light-yield calcium iodide (CaI2) scintillator for astroparticle
  physics   A high light yield calcium iodide (CaI2) scintillator is being developed for
an astroparticle physics experiments. This paper reports scintillation
performance of calcium iodide (CaI2) crystal. Large light emission of 2.7 times
that of NaI(Tl) and an emission wavelength in good agreement with the sensitive
wavelength of the photomultiplier were obtained. A study of pulse shape
discrimination using alpha and gamma sources was also performed. We confirmed
that CaI2 has excellent pulse shape discrimination potential with a quick
analysis.

35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat