As an alternative to ski jumps, deflectors can be implemented on spillways to generate free jets. They guide, up to a certain limit, the jet to an achieved location onto the plunge pool surface, and furthermore enhance the process of jet disintegration. The present research addresses the following aspects, derived from physical model tests: (1) length and shape of the jet black-water core and f...

Many recent studies show that the performance of Savonius turbines can be considerably increased by using wind deflectors. Axisymmetric deflectors are particularly interesting; they concentrate flow in all directions. This study aims to aerodynamically optimize truncated cone deflector shape through transient 3D CFD simulations sliding mesh techniques. To reduce size and thus simulation time, s...

An X-band Traveling wave Deflector mode cavity (XTD) has been developed at Radiabeam Technologies to perform longitudinal characterization of the subpicosecond ultra-relativistic electron beams. The device is optimized for the 100 MeV electron beam parameters at the Accelerator Test Facility (ATF) at Brookhaven National Laboratory, and is scalable to higher energies. An XTD is designed to opera...

NIIEFA have developed and began manufacturing a cyclotron project for the acceleration of multiple-charged ions to energies regulated in range 7.5-15 MeV/nucl. The electromagnet is H-shaped. system consists two dees, located "valleys". Acceleration performed at even harmonics. Ions are injected from external sources through axial channel. classical deflector magnetic channels ...

For multielectron beam systems with a single electron source, the outside beams need to be collimated before entering the individual microcolumns. As an alternative of the traditional multibeam source design where the broad beam from the source is collimated by a single lens, the broad beam can be first split in subbeams that are focused by a microlens array and subsequently collimated by a def...

Understanding the deflection of light by a massive deflector, as well as the associated gravitational lens phenomena, require the use of the theory of General Relativity. I consider here a classical approach, based on Newton’s equation of motion for massive particles. These particles are emitted by a distant source and deflected by the gravitational field of a (opaque) star or of a (transparent...

Electron scattering on stable target nuclei has been the most reliable tool to study nuclear structure. This tool will be available for the investigation of exotic nuclei at the electron-ion collider ELISe at FAIR. The ELISe facility is based on the colliding storage rings EAR and NESR for electrons and ions, respectively. The main instrument of ELISe will be an electron spectrometer that accep...

Biological membranes decorated with suitable contrast agents give rise to nonlinear optical signals such as two-photon fluorescence and harmonic up-conversion when illuminated with ultra-short, high-intensity pulses of infrared laser light. Microscopic images based on these nonlinear contrasts were acquired at video or higher frame rates by scanning a focused illuminating spot rapidly across ne...