A ‘primary’ RF power (H-power) at 13.56 MHz is coupled to a plasma source excited by an external double saddle field Helicon antenna. A ‘secondary’ RF power (S-power), also at 13.56 MHz but with variable phase, is additionally coupled by inserting a second antenna in contact with the plasma through one end of the source. The immersed antenna can be grounded or floating, allowing a self-bias to ...

the present paper explores the impact of an on-board hydrogen harvesting system (fuel reformer) on the overall efficiency of a fuel-cell powered vehicle. various methods of hydrogen production for automotive applications have been discussed first. as the hydrogen production is one of the major challenges for application of proton exchange membrane (pem) fuel cells, especially in vehicular indus...

Applications of laser-plasma accelerators demand low energy spread beams and high-efficiency operation. Achieving both requires flattening the accelerating fields by controlled beam loading plasma wave. Here, we optimize generation an electron bunch via localized ionization injection, such that combination injected current profile averaged acceleration dynamics results in optimal conditions. Th...

Abstract Plasma generator is a key component of electrothermal chemical gun. Its function to produce plasma under the action high pulse current and enhance combustion characteristics propellant, thus improving launch efficiency muzzle velocity. The structural properties are related its discharge characteristics, internal pressure, jet etc. This paper studies strength property capillary working ...