Feather-like structures in positive streamers

G. Wormeester, S. Nijdam, U. Ebert

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)


In experiments positive streamers can have a feather-like structure, with small hairs connected to the main streamer channel. These feathers were observed in pure nitrogen (with impurities of 1 ppm oxygen or less) but not in air. We hypothesize that these hairs are individual electron avalanches moving towards the streamer channel. Based on results of numerical simulations, we provide a theoretical explanation why these hairs are visible in nitrogen, but not in air.
Original languageEnglish
Article number08JA01
Pages (from-to)08JA01-1/4
Number of pages4
JournalJournal of Applied Physics
Publication statusPublished - 2011


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