Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stellarator coil design using cubic splines for improved access on the
  outboard side   In recent years many efforts have been undertaken to simplify coil designs
for stellarators due to the difficulties in fabricating non-planar coils. The
FOCUS code removes the need for a winding surface and represents the coils as
arbitrary curves in 3D. In the following work, the implementation of a spline
representation for the coils in FOCUS is described, along with the
implementation of a new engineering constraint to design coils with a
straighter outer section. The new capabilities of the code are shown as an
example on HSX, NCSX, and a prototype quasi-axisymmetric reactor-sized
stellarator. The flexibility granted by splines along with the new constraint
will allow for stellarator coil designs with improved accessibility and
simplified maintenance

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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: math-ph
2
The categories of this paper are: math