Abstract
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 language | English (US) |
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Pages (from-to) | 1248-1251 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 76 |
Issue number | 8 |
DOIs | |
State | Published - 1996 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy