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Electric Breakdown in Thunderstorms and Plasma Technology – Chances and Puzzles

February 27, 2019 @ 20:30 - 21:30

Co-sponsored by: MIPSE

Electric breakdown of gases occurs in thunderstorms and in a wide range of applications in plasma and high voltage technologies. Fields such as plasma processing, plasma medicine and plasma assisted combustion are rapidly progressing due to new sources, diagnostics and modeling techniques. Meanwhile, our understanding of lightning physics is challenged by transient luminous events (elves, halos, sprites, jets and gigantic jets) above thunderstorms, and by high energy processes related to active thunderstorms such as terrestrial gamma‐ray flashes and signatures of nuclear reactions in our atmosphere. I will explain the common ground of these natural and technical phenomena, and discuss discharge formation, from inception through the streamer discharge evolution to leaders and sparks. Key features of these dynamics are the extreme tails of the electron energy distribution in certain discharge stages, up to electron runaway from eV energies to tens of MeV in thunderstorms.

Speaker(s): Prof. Ute Ebert,

Location:
Room: 1005
Bldg: EECS
1301 Beal Ave
Ann Arbor, Michigan
48109

Details

Date:
February 27, 2019
Time:
20:30 - 21:30
Website:
http://events.vtools.ieee.org/m/193823

Organizer

[email protected]