First Test of Long-Range Collisional Drag via Plasma Wave Damping Article Swipe
Related Concepts
Drag
Plasma
Physics
Range (aeronautics)
Langmuir probe
Wave drag
Atomic physics
Drag coefficient
Mechanics
Plasma diagnostics
Materials science
Quantum mechanics
Composite material
M. Affolter
,
F. Anderegg
,
D. H. E. Dubin
,
C. F. Driscoll
·
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1103/physrevlett.117.155001
· OA: W2528673726
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1103/physrevlett.117.155001
· OA: W2528673726
This paper presents the first experimental confirmation of a new theory predicting enhanced drag due to long-range collisions in a magnetized plasma. The experiments measure damping of Langmuir waves in a multispecies pure ion plasma, which is dominated by interspecies collisional drag in certain regimes. The measured damping rates in these regimes exceed classical predictions of collisional drag damping by as much as an order of magnitude, but agree with the new theory.
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