Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of a self quenching streamer mode in pure gases of DME and
  isobutane   A self quenching streamer (SQS), or limited streamer mode has been studied in
single wire chambers with cross-sections 12x12 mm and wire diameters 15, 25 and
50 microns. Chambers were filled with either pure dimethyl ether (DME) or
isobutane gases and irradiated with Gd-148 alpha and Fe-55 x-ray sources. Clear
transitions from a proportional to 100% SQS mode were observed on all three
diameter wires with both gases irradiated with alpha particles. Double SQS
discharges due to inclined tracks observed in DME gas allowed an estimation of
a streamer size along the wire of less than 1 mm. The second SQS discharge
appears less than 1 mm from the first within about 500 ns. Charge spectra
obtained with DME irradiated with Fe-55 x-rays might also be interpreted as a
transition to a SQS mode, although no direct evidence of that was seen in the
observed pulse shapes.

33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin