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Atmospheric pressure glow discharge (APGD) was produced in a 5-mm helium gap between two plane-parallel electrodes of 50 mm in diameter, each covered by a 1-mm thick quartz plate. The influence of the helium gas flowing in parallel through the helium gap on APGD was studied. The helium flow rate varies up to 12 liter per minute, corresponding to helium at a speed of 67 cm/s flowing through a 5 mm...
Dielectric barrier discharge of helium at atmospheric pressure was investigated. Two plane-parallel electrodes, each covered by a 1-mm thick quartz plate, are 50 mm in diameter and the gas gap is 5 mm in length. Powered by an alternative voltage with a frequency of 33 kHz, a homogenous discharge was produced and characterized by one current pulse per half cycle of the applied voltage. The development...
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