Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The pre-exponential voltage-exponent as a sensitive test parameter for
  field emission theories   For field electron emission (FE), an empirical equation for measured current
I_m as a function of measured voltage V_m has the form I_m =
C*(V_m)^k*exp[-B/(V_m)], where B is a constant and C and k are constants or
vary weakly with V_m. Values for k can be extracted (a) from simulations based
on some specific FE theory, and in principle (b) from current-voltage
measurements of sufficiently high quality. This paper shows that comparison of
theoretically derived and experimentally derived k-values could provide a
sensitive and useful tool for comparing FE theory and experiment, and for
choosing between alternative theories. Existing methods of extracting k-values
from experimental or simulated current-voltage data are discussed, including a
modernised "least residual" method, and existing knowledge concerning k-values
is summarised. Exploratory simulations are reported. Where an analytical result
for k is independently known, this value is reliably extracted. More generally,
extracted k-values are sensitive to details of the emission theory used, but
also depend on assumed emitter shape; these two influences will need to be
disentangled by future research, and a range of emitter shapes will need
examination. Other procedural conclusions are reported. Some scientific issues
that this new tool may be able to help investigate are indicated.

23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat