Accelerated and decelerated motions of a charged point particle inside medium are studied. It is shown explicitly that in addition to the bremsstrahlung and Cerenkov singular waves, previously unknown electromagnetic singular wave should be observed. It arises when the charge velocity coincides with the light velocity in medium. This wave has the same singularity as the Cerenkov one and, theref...

We calculate the rate of energy emission by bremsstrahlung of neutrino pairs by electrons moving in the crystalline lattice of ions in dense matter in the crust of a neutron star. Since the periodic potential in the solid gives rise to electronic band gaps which can be as large as about 1 MeV, it is necessary in estimating the bremsstrahlung rate at low temperatures to take into account band st...

The nature of hot electron electroluminescence (EL) in AlGaN/GaN high electron mobility transistors is studied and attributed to Bremsstrahlung. The spectral distribution has been corrected, for the first time, for interference effects due to the multilayered device structure, and this was shown to be crucial for the correct interpretation of the data, avoiding artefacts in the spectrum and mis...

Bremsstrahlung is one of the basic photon-matter processes occuring in collisions of electrons with atoms and ions. Ion-atom collisions in ion storage rings provide an unique tool to study this process under single-collision conditions in the domain of strong, unpertubated Coulomb fields, such as it prevails in few-electron, high-Z projectiles. Of special interest is the high energy limit of th...

The efficiency of new nontraditional scheme for generating bremsstrahlung is studied by means of computer simulation. In this scheme the electron beam multiply crosses a thin target due to the presence of special focusing magnetic field [1]. It is showed that one could expect more than two times increasing of the radiation yield power. 1 NEW SCHEME OF EFFECTIVE BREMSSTRAHLUNG SOURCE The X-ray r...