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In this paper, the collective dynamics of the large aspect ratio dusty plasma is studied over a wide range of discharge parameters. An inductively coupled diffused plasma, which creates an electrostatic trap to confine the negatively…

Plasma Physics · Physics 2018-03-14 Mangilal Choudhary , S. Mukherjee , P. Bandyopadhyay

A new experimental method for creating void-free complex (``dusty'') plasmas under microgravity conditions is presented. The method is based on a pulsed operation mode of a four-channel radio-frequency generator for plasma sustainment. A…

Plasma Physics · Physics 2024-02-22 C. A. Knapek , D. P. Mohr , P. Huber

The high cadence plasma, electric, and magnetic field measurements by the Magnetospheric MultiScale spacecraft allow us to explore the near-Earth space plasma with an unprecedented time and spatial resolution, resolving electron-scale…

This study explores the dynamic evolution of dust electrical potential and plasma particle number densities with a focus on the charging of dust grains through electron and ion absorption, as described by the orbital motion limited (OML)…

Plasma Physics · Physics 2025-02-18 L. B. De Toni , L. F. Ziebell , R. Gaelzer

Wakefield structures are critical for beam manipulation in free-electron lasers (FELs), particularly when serving as dechirpers, where beam-induced longitudinal wakefields compensate the energy chirp introduced during beam magnetic…

We show that a short relativistic electron beam propagating in a plasma with a density gradient perpendicular to the direction of motion generates a wakefield in which a witness bunch experiences a transverse force. A density gradient…

Accelerator Physics · Physics 2018-01-17 Gennady Stupakov

We examine linear dust acoustic waves (DAWs) in a dusty plasma with strongly correlated dust grains, and discuss possibility of a twisted DA vortex beam carrying orbital angular momentum (OAM). For our purposes, we use the Boltzmann…

Plasma Physics · Physics 2015-06-11 P. K. Shukla

In this research, formation of finite two-dimensional (2D) plasma crystals was numerically simulated. The structure was investigated for systems with various Debye length and it was found there is a transition from a complete hexagonal…

Plasma Physics · Physics 2007-07-27 K. Qiao , T. W. Hyde

We consider a two-dimensional complex (dusty) plasma crystal excited by an electrostatically-induced shock wave. Dust particle kinematics in such a system are usually determined using particle tracking velocimetry. In this work we present a…

Plasma Physics · Physics 2012-01-31 Neil P. Oxtoby , Jason F. Ralph , Céline Durniak , Dmitry Samsonov

In the presence of gravity, the micron-sized charged dust particles in a complex (dusty) plasma are compressed into thin layers. However, under the microgravity conditions of the Plasma Kristall-4 (PK-4) experiment on the International…

The force on a microparticle in a complex plasma by streaming ions, the so-called ion drag force, is not well known. However, it is important for the understanding of interesting phenomena in complex plasmas such as the void formation under…

Dust impacts on spacecraft are commonly detected by antenna instruments as transient voltage perturbations. The signal waveform is generated by the interaction between the impact-generated plasma cloud and the elements of the…

Space Physics · Physics 2023-04-04 Mitchell M. Shen , Zoltan Sternovsky , Alessandro Garzelli , David M. Malaspina

A model is presented to explain the normal mode features of dust particles in a planar zigzag crystal chain for the first and second neighbors. The degrees of freedom of particles are the longitudinal and transverse displacements in plane…

Plasma Physics · Physics 2020-01-28 A. Abdikian , Zahida Ehsan

Beam-induced ionization injection (B-III) is currently being explored as a method for injecting an electron beam with a controlled density profile into a plasma wakefield accelerator (PWFA). This process is initiated by the fields of an…

Accelerator Physics · Physics 2021-07-02 J. Yan , A. Farrell , L. D. Amorim , N. Vafaei-Najafabadi

The dependence of wakefield amplitude and phase on beam and plasma parameters is studied in the parameter area of interest for self-modulating proton beam-driven plasma wakefield acceleration. The wakefield sensitivity to small parameter…

Plasma Physics · Physics 2015-06-19 K. V. Lotov , V. A. Minakov , A. P. Sosedkin

Dependencies of levitation position of positively charged fine-particles on plasma parameters are investigated. The charges on the particles become positive in a cross-field sheath between magnetized double plasmas with different potentials…

Plasma Physics · Physics 2007-05-23 Takuma Gohda , Satoru Iizuka

It is shown experimentally that vertical pairing of two identical microspheres suspended in the sheath of a radio-frequency (rf) discharge at low gas pressures (a few Pa), appears at a well defined instability threshold of the rf power. The…

Chaotic Dynamics · Physics 2016-08-16 V. Steinberg , R. Sütterlin , A. V. Ivlev , G. Morfill

The nonlinear propagation of small but finite amplitude dust ion-acoustic waves (DIAWs) in an ion-beam driven plasma with Boltzmannian electrons, positive ions and stationary charged dust grains, is studied by using the standard reductive…

Plasma Physics · Physics 2010-10-27 N. C. Adhikary , A. P. Misra , H. Bailung , J. Chutia

We show that a chain of trapped ions embedded in microtraps generated by an optical lattice can be used to study oscillator models related to dry friction and energy transport. Numerical calculations with realistic experimental parameters…

Quantum Physics · Physics 2011-08-17 Thaned Pruttivarasin , Michael Ramm , Ishan Talukdar , Axel Kreuter , Hartmut Haeffner

Analysis of driven dust vortex flow is presented in a weakly magnetized plasma. The 2D hydrodynamic model is applied to the confined dust cloud in a non-uniform magnetic field in order to recover the dust vortex flow driven in a…

Plasma Physics · Physics 2020-06-30 Prince Kumar , Devendra Sharma