Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical investigation of tuning method for nonuniform disk-loaded
  waveguides   On the base of more general model we assessed accuracy of method that is
widely used for post- tuning accelerator sections. Our consideration has shown
that for wide range of disk loaded waveguide (DLW) parameters using simple
tuning coefficients gives appropriate characteristics of DLWs. For injector
sections, in which phase velocity and amplitude change, there are some
deviation from the desired characteristics. It is necessary to evaluate the
influence of additional phase shift on beam characteristics at the injector
exit.

17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ