Yuval Carmel

TL;DR: In this article, the linear and nonlinear theory of backward-wave oscillators with relativistic electron beams is presented. But it is only a few publications providing a theoretical description of these devices and there is a need for theoretical models which can be compared with the experimental data.

TL;DR: In this article, the results of theoretical and experimental studies of a GW-class, large diameter microwave oscillator are presented, which consists of a large cross-section (overmoded), slow-wave structure with a unique profile of wall radius specifically designed to support surface waves and to provide a strong beam-wave coupling at moderate voltage (500 kV).

TL;DR: An experimental demonstration of a strong enhancement of the interaction efficiency in a high-power relativistic backward-wave oscillator when plasma is injected is presented in this article, which is attributed to induced scattering of the electromagnetic radiation of electrons in an electrostatic field produced by the background plasma and a beam space-charge wave in the corrugated interaction region.

TL;DR: In this article, an optical, noncontact temperature sensing system has been developed, calibrated, and incorporated into a computer-controlled microwave furnace to decrease the thermocouple effects during the processing of advanced ceramic materials.

TL;DR: In this article, the thermal conductivity of ZnO with different particle sizes (micrometer, submicrometers, and nanometer) was measured using the laser flash technique, and a model for interparticle neck growth was developed based on mass transfer to the neck region of a powder as a result of known temperature.