5 papers · 1 filter
Background-Pressure Effects on Charge-Exchange Measurements in Plasma Flows at Elevated Pressures
Ivan Romadanov, Stanislav Musikhin, Je-Hoi Mun +2
Charge-exchange (CEX) collisions can affect measurements of plasma plumes and neutralized ion flows in vacuum facilities, particularly when the background gas pressure increases an…
Planar Laser-Induced Fluorescence system for Space and Phase-resolved Ion Velocity Distribution Function Measurements
Sung Hyun Son, Ivan Romadanov, Nirbhav Singh Chopra +1
In this work, we present a planar laser-induced fluorescence (PLIF) system for two-dimensional (2D) spatial and phase-resolved ion velocity distribution function (IVDF) measurement…
Mode transitions and spoke structures in ExB Penning discharge
M. Tyushev, M. Papahn Zadeh, N. S. Chopra +7
Two-dimensional particle-in-cell simulations in the (radial-azimuthal) plane perpendicular to the axial direction of a cylindrical ExB Penning discharge are presented. The low-pres…
Anticathode effect on electron kinetics in electron beam generated plasma
Nirbhav Singh Chopra, Ivan Romadanov, Yevgeny Raitses
Electron beam (e-beam) generated plasmas with applied crossed electric and magnetic fields are promising for low damage processing of ma…
Report on laser-induced fluorescence transitions relevant for the microelectronics industry and sustainability applications
V. S. Santosh K. Kondeti, Shurik Yatom, Ivan Romadanov +3
A wide variety of feed gases are used to generate low-temperature plasmas for the microelectronics and the sustainability applications. These plasmas often have a complex combinati…