Location and geometry optimisations of Straight Plate Upstream Deflector (SPUD) for performance enhancement a three-straightbladed Vertical Axis Wind Turbine (VAWT) are carried out at three regimes tip speed ratios (TSRs). Results analysis reveals that SPUD location has significant effect on the power coefficient ( C p ) increment VAWT. Placing two SPUDs both upward downward in upstream VAWT ca...

For electron scattering off radioactive nuclei, the ELISe spectrometer will be constructed as a part of FAIR. The system consists of a Pre-Deflector (PD), a Quadrupole (Q), a Hexapole (H) and a vertically bending dipole Magnet (VM). In the conceptual design of the spectrometer, the proposed iron poles of PD are similar to a clam-shell gap to accept large azimuthal scattering angles [1]. However...

An optimal strategy for cascading phased-array deflectors is presented that allows for high-resolution random-access beam steering with continuous scan-angle control but requires a minimum number of control lines. The system is analyzed theoretically by use of a Fourier optics approach and then verified experimentally. A pair of 32-channel optical phased arrays fabricated by use of surface elec...

A system for precise angular laser beam deflection by using a plane mirror is presented. The mirror was fixed to two supports attached to its edges. This article details the theoretical basis of how this deflector works. The spring deflection of a flat circular metal plate under a uniform axial buckling was used and the mechanical stress was generated by a piezoelectric layer. The characteristi...

IMALION which stands for IMplantation of ALuminum IONs is a facility designed for high-current metal ion beam implantation and surface modification such as in semiconductor, medical or optical industry. IMALION is a newly developed 30 kV metal ion wide area implantation platform, which is suitable for the irradiation of a target width of 200 mm to produce homogeneous implantation profiles over ...

Experiments have been conducted on a dual electric grid thermionic device to investigate an alternative method of space charge mitigation in a thermionic energy convertor (TEC). Two electric grids, the attractor and deflector grids, provide opposing electric fields to overcome space charge while minimizing power losses to the attractor grid. Electron beams are formed in the electrode gap provid...

Using Fermat’s principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with different alignment between source, deflector, and observer in the absence of gravity waves. Contrary to a recent claim, we conclude that measurements ...