Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: RF impedance measurements of DC atmospheric micro-discharges   The available diagnostics for atmospheric micro-plasmas remain limited and
relatively complex to implement; so we present a radio-frequency technique for
diagnosing a key parameter here. The technique allows one to estimate the
dependencies of the electron density by measuring the RF-impedance of the
micro-plasma and analyzing it with an appropriate equivalent circuit. This
technique is inexpensive, can be used in real time and gives reasonable results
for argon and helium DC micro-plasmas in holes over a wide pressure range. The
electron density increases linearly with current in the expected range
consistent with normal glow discharge behavior.

0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas