scholarly journals Dynamics of Active Brownian Particles in Plasma

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 561
Author(s):  
Kyaw Arkar ◽  
Mikhail M. Vasiliev ◽  
Oleg F. Petrov ◽  
Evgenii A. Kononov ◽  
Fedor M. Trukhachev
Keyword(s):  
Experimental Data ◽  
Laser Radiation ◽  
Discharge Plasma ◽  
Surrounding Medium ◽  
Dust Particles ◽  
Single Particles ◽  
Thermophoretic Force ◽  
Gas Discharge Plasma ◽  
Brownian Particles ◽  
Radio Frequency Discharge

Experimental data on the active Brownian motion of single particles in the RF (radio-frequency) discharge plasma under the influence of thermophoretic force, induced by laser radiation, depending on the material and type of surface of the particle, are presented. Unlike passive Brownian particles, active Brownian particles, also known as micro-swimmers, move directionally. It was shown that different dust particles in gas discharge plasma can convert the energy of a surrounding medium (laser radiation) into the kinetic energy of motion. The movement of the active particle is a superposition of chaotic motion and self-propulsion.

The energy transfer in dust particles structure in gas discharge plasma

2011 ◽  
Author(s):  
A. Timofeev ◽  
Vladimir Yu. Nosenko ◽  
Padma K. Shukla ◽  
Markus H. Thoma ◽  
Hubertus M. Thomas
Keyword(s):  
Energy Transfer ◽  
Discharge Plasma ◽  
Gas Discharge ◽  
Dust Particles ◽  
Gas Discharge Plasma

scholarly journals Инверсия вклада изотопа малой относительной концентрации в суммарный коэффициент поглощения смеси изотопов неона на переходе 3s-=SUB=-2-=/SUB=--2p-=SUB=-4-=/SUB=-

2019 ◽  
Vol 127 (8) ◽  
pp. 179
Author(s):  
Э.Г. Сапрыкин
Keyword(s):  
Numerical Modeling ◽  
Laser Radiation ◽  
Ground State ◽  
Optical Pumping ◽  
Discharge Plasma ◽  
Relative Concentration ◽  
Probe Laser ◽  
Decay Channels ◽  
Gas Discharge Plasma ◽  
Upper Level

AbstractAbsorption of probe laser radiation by a mixture of even isotopes of neon in a gas discharge plasma is investigated by the method of magnetic scanning of 3 s _2–2 p _4 transition. The contours of absorption lines of isotopes are resolved by means of numerical modeling. It is discovered that, upon decrease in relative concentration of one of the isotopes, its contribution to absorption is replaced by gain. The effect is found to be caused by radiative transfer of excitation energy between atoms of different kinds in the absence of a difference in level energies (the process known as optical pumping). The effect of this mechanism turned out to be substantial for the upper level transitions from which to the ground state are allowed while being absent for the lower level of the transition from which such transitions are forbidden although other decay channels are available.

Effective interaction potential and ordered structures of dust particles in a gas-discharge plasma

1999 ◽  
Vol 88 (3) ◽  
pp. 449-459 ◽  
Author(s):  
O. M. Belotserkovskii ◽  
I. E. Zakharov ◽  
A. P. Nefedov ◽  
V. S. Filinov ◽  
V. E. Fortov ◽  
...  
Keyword(s):  
Interaction Potential ◽  
Discharge Plasma ◽  
Effective Interaction ◽  
Gas Discharge ◽  
Dust Particles ◽  
Ordered Structures ◽  
Gas Discharge Plasma

Anomalous heating of a system of dust particles in a gas-discharge plasma

JETP Letters ◽  
1997 ◽  
Vol 66 (6) ◽  
pp. 419-425 ◽  
Author(s):  
V. V. Zhakhovskii ◽  
V. I. Molotkov ◽  
A. P. Nefedov ◽  
V. M. Torchinskii ◽  
A. G. Khrapak ◽  
...  
Keyword(s):  
Discharge Plasma ◽  
Gas Discharge ◽  
Dust Particles ◽  
Gas Discharge Plasma ◽  
Anomalous Heating

On the charge of dust particles in a low-pressure gas discharge plasma

2000 ◽  
Vol 91 (3) ◽  
pp. 483-487 ◽  
Author(s):  
A. V. Zobnin ◽  
A. P. Nefedov ◽  
V. A. Sinel’shchikov ◽  
V. E. Fortov
Keyword(s):  
Discharge Plasma ◽  
Low Pressure ◽  
Gas Discharge ◽  
Dust Particles ◽  
Gas Discharge Plasma

PREPARATION OF THE COSMIC EXPERIMENT "COULOMB-PLASMA"

2019 ◽  
pp. 5-11
Author(s):  
L.G. D’YACHKOV ◽  
M.M. VASILIEV ◽  
O.F. PETROV ◽  
S.F. SAVIN ◽  
I.V. CHURILO
Keyword(s):  
Dusty Plasma ◽  
Discharge Plasma ◽  
Space Station ◽  
Dissipative Systems ◽  
Gas Discharge Plasma ◽  
Brownian Particles ◽  
Microgravity Conditions ◽  
Plasma Dust ◽  
Goals And Objectives ◽  
Open Thermodynamic Systems

Studies of dusty plasma have been actively carried out for about a quarter of a century in many laboratories on Earth, and on board the International Space Station under microgravity conditions. At present, a new experiment is being prepared. We describe the goals and objectives of the experiment, its features and differences from previous experiments, explain the need for it in microgravity. The objective of the experiment is to study the evolution of the open dissipative systems of strongly interacting macroparticles in a gas-discharge plasma, to obtain data on phase transitions and dynamics of active Brownian particles and dynamics of defects and dislocations in plasma-dust structures. Key words: dusty plasma, microgravity, cosmic experiment, open thermodynamic systems, active Brownian particles

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