Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pre-equilibrium stopping and charge capture in proton-irradiated
  aluminum sheets   We present a first-principles study of pre-equilibrium stopping power and
projectile charge capture in thin aluminum sheets irradiated by 6 - 60 keV
protons. Our time-dependent density functional theory calculations reveal
enhanced stopping power compared to bulk aluminum, particularly near the
entrance layers. We propose the additional excitation channel of surface plasma
oscillations as the most plausible explanation for this behavior. We also
introduce a novel technique to compute the orbital-resolved charge state of a
proton projectile after transmission through the sheet. Our results provide
insight into the dynamics of orbital occupations after the projectile exits the
aluminum sheet and have important implications for advancing radiation hardness
and focused-ion beam techniques, especially for few-layer materials.

23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph