DPLX: Experiment to Investigate Heating and Stability in Magnetized Rotating Dusty Plasmas

Romero-Talamás, C.A.; Bates, E. M.; Birmingham, W. J.; Rivera, W.F.

doi:10.1109/tps.2016.2527625

Cited by 12 publications

(13 citation statements)

References 39 publications

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“…Unlike the case of striation under identical conditions, the omega vector is directed opposite to the magnetic induction. The absolute value of the angular velocity is record‐breaking among all we know from the literature about structure rotation in strong magnetic fields …”

Section: Results and Discussion Of Fast Rotationmentioning

confidence: 99%

“…The absolute value of the angular velocity is record-breaking among all we know from the literature about structure rotation in strong magnetic fields. [27][28][29][30][31][32][33][34][35][36] In the discussed trap located in a shrank discharge channel, the plasma concentration rises, which causes an increase in the ion drag force. Probably, this force becomes the main reason for the rotation.…”

Section: Methodsmentioning

confidence: 99%

“…A number of studies have identified several physical phenomena associated with the dusty structures, their geometry, their dynamics in a magnetic field, and the ordering of particles. Nowadays, studies of dusty plasmas in magnetic fields continue, and the magnetic field magnitude range has been sufficiently widened . And the higher range of magnetic induction is a subject of certain interest of current research.…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, studies of dusty plasmas in magnetic fields continue, and the magnetic field magnitude range has been sufficiently widened. [27][28][29][30][31][32][33][34][35][36] And the higher range of magnetic induction is a subject of certain interest of current research. Here, the probe diagnostics does not have rigorous theory, and steady discharge regimes are not fully investigated.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Observation of the dynamics of the dust structure in a dust trap in a double electric layer in a magnetic field up to 10,000 G

Pavlov

Дзлиева

D’yachkov

et al. 2019

Contributions to Plasma Physics

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In this work, we, for the first time, present the experimental study of complex plasmas in glow discharge in the narrow region of the current channel under magnetic fields up to 104 G. We obtain the conditions for the existence and stability of structures under the whole range of the magnetic field. We could detect a record‐breaking rotation velocity of the dusty structure, reaching 15 rad/s. Measurements of the angular velocity behaviour under varied magnetic fields were performed. In order to characterize the geometry of the dusty structure as a function of the magnetic induction, the size and shape of the sections normal to the discharge axis were measured. The inter‐particle distance as another informative characteristic was fixed for structures under a whole range of the applied magnetic field. Based on the results of the mentioned observations, we propose a qualitative interpretation of the rotation variation with the magnetic field. This interpretation includes the model of mechanisms driving the rotation of the dusty structure.

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Section: Results and Discussion Of Fast Rotationmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Observation of the dynamics of the dust structure in a dust trap in a double electric layer in a magnetic field up to 10,000 G

Pavlov

Дзлиева

D’yachkov

et al. 2019

Contributions to Plasma Physics

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“…For dust particles with a size of a = 10 µm, it occurs in a magnetic field of the order of 10 5 G. This condition can already be realized in experiments, for example, in ref. []. In helium, a field of B = 2.4 × 10 4 G is enough for the magnetization of ions.…”

Section: Magnetized Particlesmentioning

confidence: 99%

The effect of magnetic field on plasma particles in dusty plasma

Karasev

Дзлиева

D’yachkov

et al. 2019

Contributions to Plasma Physics

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In this work, we present the investigation of the formation features and internal structure of dust clouds created in plasma of glow discharge in the external magnetic field corresponding to a range of moderate and strong fields, at which the ion component is magnetized. The analysis of the plasma magnetization in the presence of dust components is carried out. We defined the values of magnetic induction at which the changes in dynamics of plasma particles in magnetic field in light inert gases are expected. The experimental setup was built in two versions. For the purpose of generating of magnetic field, the first setup was equipped with ordinary magnetic coils, and the second one included a superconducting solenoid. The discharge tubes, the main chambers where plasma was ignited and maintained in a glow discharge in lowered pressure, also have certain peculiarities, which we describe below. While using helium as a bulk gas, our study focused only on the dust trap in the region of narrowing discharge current. For neon, we used two traps: the striation trap and one just mentioned above placed in the narrowing of the discharge tube. As a result, the steady dust structures in a glow discharge under the magnetization of ions and electrons were obtained for the first time. Dust structures were rotated and tended to form a dust cluster and shell structure. A number of parameters of magnetization achieved in experiments were calculated.

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Roles of magnetized background ions in determining dynamics of 2D magnetized complex plasmas

et al. 2017

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Dynamics of 2D magnetized complex plasmas is investigated based on the driven-dissipative dynamics simulation. Besides the usual Yukawa potential, a modified Yukawa potential which includes the effects of external magnetic field B on the shielding distance of the charged dust particles is used to account for the electrostatic interaction of the charged dust particles. It is found that shielding distance of the charged dust particles is greatly increased due to the magnetization of background ions, and the resulting equilibrium diffusion of the system differs from that of usual Yukawa system. Collective oscillation of the system is discussed in terms of Fourier analysis of velocity-auto-correlation function.

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DPLX: Experiment to Investigate Heating and Stability in Magnetized Rotating Dusty Plasmas

Cited by 12 publications

References 39 publications

Observation of the dynamics of the dust structure in a dust trap in a double electric layer in a magnetic field up to 10,000 G

Observation of the dynamics of the dust structure in a dust trap in a double electric layer in a magnetic field up to 10,000 G

The effect of magnetic field on plasma particles in dusty plasma

Roles of magnetized background ions in determining dynamics of 2D magnetized complex plasmas

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