Photo-ionization and residual electron effects in guided streamers
Wu, S., Lu, XinPei, Liu, D., Yang, Y., Pan, Y., & Ostrikov, Ken (2014) Photo-ionization and residual electron effects in guided streamers. Physics of Plasmas, 21(10), p. 103508.
Complementary experiments and numerical modeling reveal the important role of photo-ionization in the guided streamer propagation in helium-air gas mixtures. It is shown that the minimum electron concentration ∼108 cm−3 is required for the regular, repeated propagation of the plasma bullets, while the streamers propagate in the stochastic mode below this threshold. The stochastic-to-regular mode transition is related to the higher background electron density in front of the propagating streamers. These findings help improving control of guided streamer propagation in applications from health care to nanotechnology and improve understanding of generic pre-breakdown phenomena.
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|Item Type:||Journal Article|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 AIP Publishing LLC|
|Deposited On:||09 Nov 2015 23:51|
|Last Modified:||08 Nov 2016 04:07|
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