Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Longitudinal uniformity, time performance and irradiation test of pure
  CsI crystals   To study an alternative to BaF2, as the crystal choice for the Mu2e
calorimeter, thirteen pure CsI crystals from Opto Materials and ISMA producers
have been characterized by determining their light yield (LY) and longitudinal
response uniformity (LRU), when read with a UV extended PMT. The crystals show
a LY of ~ 100 p.e./MeV (~ 150 p.e./MeV) when wrapped with Tyvek and coupled to
the PMT without (with) optical grease. The LRU is well represented by a linear
slope that is on average around -0.6 %/cm. The timing performances of the Opto
Materials crystal, read with a UV extended MPPC, have been evaluated with
minimum ionizing particles. A timing resolution of ~ 330 ps (~ 440 ps) is
achieved when connecting the photosensor to the MPPC with (without) optical
grease. The crystal radiation hardness to a ionization dose has also been
studied for one pure CsI crystal from SICCAS. After exposing it to a dose of
900 Gy, a decrease of 33% in the LY is observed while the LRU remains
unchanged.

22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con