Physics of plasmas confined by a dipole magnet: insights from compact experiments driven at steady state

S Bhattacharjee, AR Baitha, A Nanda, S Hunjan… - Reviews of Modern …, 2022 - Springer
Plasmas confined by a dipole magnet host a multitude of intriguing and non-trivial
phenomena, whose physics is not completely well understood yet. We investigate the dipole …

Current density profiles in a compact dipole plasma

A Nanda, S Bhattacharjee - Physics of Plasmas, 2023 - pubs.aip.org
This article presents current density profiles due to Lorentz and hydrodynamic forces in the
presence of spatially varying plasma parameters, electrostatic field (⁠ E 0→⁠), and …

[HTML][HTML] Steady state densities in a plasma confined by a dipole magnet: Diffusion induced transport explored through direct measurements and modeling

AR Baitha, A Nanda, S Hunjan, S Bhattacharjee - AIP Advances, 2020 - pubs.aip.org
Steady state densities in a plasma confined by a permanent dipole magnet are determined
through detailed experiments and modeling. Two diffusion models are developed, and the …

Temperature anisotropy governed electrical conductivity tensor in a steady state dipole plasma: Spatially resolved experiments and modeling

A Nanda, S Bhattacharjee - Physics of Plasmas, 2022 - pubs.aip.org
A generalization of electrical conductivity in a plasma confined in a dipole magnetic field, in
the presence of temperature anisotropy is presented. The anisotropy governed by the …

Characterizing spatially varying optical emissions in a steady-state dipole plasma: inversion based experiments and modeling

S Bhattacharjee, AR Baitha, JV Mathew… - Physica …, 2021 - iopscience.iop.org
This study characterizes spatially varying optical emissions in a compact dipole plasma
device driven at steady-state by continuous mode microwaves. The study is motivated by …

Measurement of electron energetics in the equatorial and polar planes of a compact dipole plasma driven at steady state

S Hunjan, S Bhattacharjee - Plasma Sources Science and …, 2023 - iopscience.iop.org
The electron energy distribution function (EEDF) is investigated in a plasma driven at steady
state and confined by a single permanent dipole magnet, employing electron cyclotron …

[HTML][HTML] Characteristics of fluctuations in the equatorial and polar directions of a compact dipole plasma driven at steady state

S Hunjan, S Bhattacharjee - Physics of Plasmas, 2024 - pubs.aip.org
The fluctuations in the plasma potential (⁠ V s ̃⁠) and electron density (⁠ N e ̃⁠) are
measured in the steady-state dipole plasma confined in a spherical vacuum chamber using …

Observation of electron temperature anisotropy in the magnetic filter of a hot cathode discharge

J Sangma, AR Baitha, M Chakraborty - Physica Scripta, 2024 - iopscience.iop.org
Instabilities arising from electron temperature in an ambient magnetic field when measured
parallel and perpendicular to it could influence plasma stability and have effect on plasma …

Exploring Astrophysically-Relevant Superadiabaticity Driven by Non-Resonant Heating in a Laboratory Magnetized Plasma

A Nanda, S Bhattacharjee - arXiv preprint arXiv:2402.11937, 2024 - arxiv.org
The polytropic index of electrons in a magnetized plasma is experimentally investigated in
the presence of external heating and anisotropic work done on the system by the magnetic …

[PDF][PDF] Energy exchange in a compact dipole plasma: thermodynamical investigations through measurements and modeling

A Nanda, S Bhattacharjee - aappsdpp.org
Temperature anisotropy prevails both in laboratory and astrophysical plasma. As a free
energy source, temperature anisotropy has revealed potential solutions to heating and …