Novel generation plasma dynamical devices for synthesis of new materials and coatings

2^nd International Conference and Exhibition on Materials Science & Engineering

October 07-09, 2013 Hampton Inn Tropicana, Las Vegas, NV, USA

Alexey A. Goncharov

Accepted Abstracts: J Material Sci

Abstract :

This is to describe the current status of ongoing research and development of the novel generation plasma dynamical devices based on the cylindrical electrostatic plasma lens configuration suitable for synthesis of new materials and exotic coatings by intense electron and ion beams. The results carried out in recent years collaboratively between IP NASU (Kiev), LBNL (Berkeley,USA) and HCEI RAS (Tomsk). The electrostatic plasma lens is a well-explored tool for focusing high-current, large area, energetic, heavy ion beams, providing a convenient and quick way of carrying out high-dose ion implantation. The crossed electric and magnetic fields inherent the plasma lens configuration, provides attractive method for establishing a stable plasma discharge at low pressure. Using plasma lens configuration in this way, several low maintenance, high reliability plasma devices using permanent magnets and possessing considerable flexibility towards spatial configuration were developed. These devices can be applied both for fine ion cleaning, activation and polishing of substrates before deposition and for sputtering. One particularly interesting result of this background work was observation of the essential positive potential at the floating substrate. This suggested to us the possibility of a plasma lens for focusing high-current beams of negatively charged particles, electrons and negative ions, that is based on the use of the dynamical cloud of positive space charge under condition of magnetic insulation electrons. We describe also the original approach for effective additional elimination of micro droplets in a density flow of cathode arc plasma. This approach is based on application of the cylindrical plasma lens configuration for introducing at volume of propagating along axis?s dense plasma flow convergent radially fast energetic electron beam produced by ion-electron secondary emission from electrodes of plasma optical tool.

Biography :

Alexey A. Goncharov received the D.Sci. degree from the Institute of Physics, National Academy of Sciences of Ukraine (NASU), Kiev, Ukraine at 1996. He has been a researcher with the Institute of Physics, NASU, since 1965, where he is currently a Scientist-in-Chief. He has authored or co-authored more than 200 experimental and theoretical articles. He is involved with high-current plasma-optical devices for basic sciences and plasma-based high technologies. His research interests include high-current charged particle beams and applications ion-plasma technologies for material science. Prof. A. Goncharov is a member of the Ukrainian Physical Society and American Physical Society.