Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Silicon detectors: damage, modelling and expected long-time behaviour in
  physics experiments at ultra high energy   In this contribution, the structural modifications of the material and the
degradation of devices is modelled and compared with experimental data for more
resistivities, temperatures, crystal orientations and oxygen concentrations,
considering the existence of the new primary fourfold coordinated defect,
besides the vacancy and the interstitial. Some estimations of the behaviour of
detectors in concrete environments at the next generations of high energy
physics experiments as LHC, SLHC, VLHC, or ULHC are done.

34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg