Experimental observations of steep temperature steps in dense magnetized plasmas

G. S. Chiu, S. A. Cohen

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Quasi-steady-state steep temperature steps have been experimentally observed in dense (> 1019m−3) linear magnetized helium plasma columns submerged in a high-density (> 100 mT) neutral-gas environment. The formation of such features is found to be favored by a high neutral gas density or a positive bias (≥ Vfl placed on the end plate. A rapid reduction in plasma density and electron temperature is observed to exist across the steps, as is a dramatic increase in neutral line radiation. Potential steps are inferred. Detailed Langmuir probe measurements have revealed three-dimensional structures. Possible mechanisms of formation are discussed.

Original languageEnglish (US)
Pages (from-to)1248-1251
Number of pages4
JournalPhysical review letters
Issue number8
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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