Conveners
1.1 Basic Phenomena II
- Patrick Wong (Michigan State University)
We report on the direct measurement of the evolution of the azimuthal magnetic field ($B_{\theta}$) in a small-scale, self-compressing plasma column using spectroscopic methods. This measurement allows for calculating the radial distribution of the axial current density which is crucial for understanding the dynamics of the plasma compression, and for improving predictions of detailed MHD...
In highly non-uniform electric fields, corona appears when a geometry-dependent threshold voltage is reached. A further increase in voltage results in circuit-limited breakdown. As the electric field becomes more uniform, the difference between the corona-onset voltage and the breakdown voltage becomes smaller until finally breakdown commences directly. The gap distance and voltage where the...
High power impulse magnetron sputtering (HiPIMS) is an ionized physical vapor deposition (IPVD) technique that has received significant interest lately [1]. However, proper definitions of the various concepts of ionization are lacking while quantification and control of the fraction of ionization of the sputtered species are crucial in magnetron sputtering, and in particular in HiPIMS...
In low pressure capacitively coupled radio frequency (CCRF) discharges, the expansion of the plasma sheaths generate highly energetic electron beams traversing the discharge gap and supporting the plasma via ionization. The penetration of these electrons into the plasma bulk can lead to significant plasma oscillations and propagation of electrostatic waves. Consequently, the electron power...
The environmental improvements by non-thermal plasma have been actively studied all over the world. Generally, a pulsed discharge having a time duration of 100s ns consists of two discharge phases including the primary streamer and secondary streamer discharges. It is also well known that the streamer heads always have the largest electric field during entire discharge process and meanwhile,...
To further the goal of optimized material design for pulsed power components, we aim to achieve a fundamental understanding of the model nonlinear dielectric material BaTiO3, through concurrent experimental and theoretical study. This effort is intended to lead to improved synthesis and design control, and a validated model to enable material predictions. The ultimate goal is to improve energy...
