Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A systematic approach to the linear-stability assessment of Alfv\'en
  eigenmodes in the presence of fusion-born alpha particles for ITER-like
  equilibria   A systematic approach to assess the linear stability of Alfv\'en eigenmodes
in the presence of fusion-born alpha particles is described. Because
experimental results for ITER are not available yet, it is not known beforehand
which Alfv\'en eigenmodes will interact more intensively with the
alpha-particle population. Therefore, the number of modes that need to be
considered in stability assessments becomes quite large and care must be
exercised when choosing the numerical tools to work with, which must be fast
and efficient. In the presented approach, all possible eigenmodes are first
found after intensively scanning a suitable frequency range. Each solution
found is then tested to find if its discretization over the radial grid in use
is adequate. Finally, the interaction between the identified eigenmodes and the
alpha-particle population is evaluated with the drift-kinetic code CASTOR-K, in
order to assess their growth rates and hence their linear stability. The
described approach enables one to single out the most unstable eigenmodes in a
given scenario, which can then be handled with more specialized tools. This
selection capability eases the task of evaluating alpha-particle interactions
with Alfv\'en eigenmodes, either for ITER scenarios or for any other kind of
scenario planning.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: stat
34
The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: q-fin
1
The categories of this paper are: cs
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: cond-mat
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph