Zobrazeno 1 - 10
of 111
pro vyhledávání: '"C F, Driscoll"'
Publikováno v:
Physical Review Letters. 123
We observe plasma heating due to collisional diffusion across a separatrix when a magnesium ion column in a Penning-Malmberg trap is cyclically pushed back and forth across a partial trapping barrier. The barrier is an externally applied axisymmetric
Publikováno v:
Physical review letters. 121(23)
Quantitative experiments on the parametric decay instability of near-acoustic plasma waves provide strong evidence that trapped particles reduce the instability threshold below fluid models. At low temperatures, the broad characteristics of the param
Publikováno v:
AIP Conference Proceedings.
Publikováno v:
Physics Letters A. 378:2406-2409
In trapped plasmas, electric fields and collective effects shift the cyclotron mode frequencies away from the “bare” cyclotron frequency for each species s . Here, these shifts are measured on a set of cyclotron modes ( m = 0 , 1 , and 2 ) with c
Publikováno v:
Physics of Plasmas. 26:122108
Large amplitude, near-acoustic plasma waves have a temperature-dependent harmonic content and nonlinear frequency shifts. On cold plasmas, experiments show that fluid nonlinearities dominate, and the observed harmonic content is well predicted by a r
Publikováno v:
Physical review letters. 117(15)
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 domina
Autor:
A. A. Kabantsev, C. F. Driscoll
Publikováno v:
AIP Conference Proceedings.
Experiments and theory on electron columns have characterized a novel algebraic damping of diocotron-like modes, caused by a small flux of halo particles through the resonant layer [1]. The damping rate is proportional to the flux. We have also inves
Publikováno v:
Fusion Science and Technology. 59:150-153
Variations in magnetic or electrostatic confinement fields give rise to trapping separatrices, and standard neoclassical transport theory analyzes effects from collision-induced separatrix crossing...
Publikováno v:
Fusion Science and Technology. 59:170-175
Axial variations in magnetic or electrostatic confinement fields create local trapping separatrices, and traditional neo-classical theory analyzes the effects from collision-induced separatrix cros...
Publikováno v:
Physics of Plasmas. 25:055701
We present damping measurements of axial plasma waves in magnetized, multispecies ion plasmas. At high temperatures T≳10−2 eV, collisionless Landau damping dominates, whereas, at lower temperatures T≲10−2 eV, the damping arises from interspec