Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strategies for Advantageous Differential Transport of Ions in Magnetic
  Fusion Devices   In a variety of magnetized plasma geometries, it has long been known that
highly charged impurities tend to accumulate in regions of higher density.
Here, we examine how this "collisional pinch" changes in the presence of
additional forces, such as might be found in systems with gravity, fast
rotation, or non-negligible space charge. In the case of a rotating,
cylindrical plasma, we describe a regime in which the radially outermost ion
species is intermediate in both mass and charge. We discuss implications for
fusion devices and plasma mass filters.

30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
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The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs