Results 331 to 340 of about 5,472,767 (365)
Some of the next articles are maybe not open access.
2011
As it follows from the figure, the minimal value of the TR yield coincides with a direction of charge velocity. The angular distributions of TR for various values of the Lorentz-factor (and accordingly β) in dependence of the direction cosines, which can change from −1 up to +1 are shown in the presented figure.
openaire +1 more source
As it follows from the figure, the minimal value of the TR yield coincides with a direction of charge velocity. The angular distributions of TR for various values of the Lorentz-factor (and accordingly β) in dependence of the direction cosines, which can change from −1 up to +1 are shown in the presented figure.
openaire +1 more source
Transition radiation in mechanics
Physics-Uspekhi, 1996Transition radiation of elastic waves generated by a mechanical object that performs a uniform rectilinear motion along an inhomogeneous elastic system (a string, beam, membrane, or plate) is discussed in detail. The effect is analysed by assuming that the law of motion of the load admits the generation of neither Cherenkov nor bremsstrahlung radiation,
A.I. Vesnitskii, A.V. Metrikin
openaire +1 more source
Transition radiation and Bragg resonances
Physical Review A, 1994Both spontaneous and stimulated radiation emitted by an electron beam traversing a periodic medium are studied in the approximation of neglecting the influence of the field on the motion of the electrons. The results are valid both in the vicinity of the Bragg domain as well as far from it.
openaire +2 more sources
Transition Radiation from Metal Films
Physical Review Letters, 1962lt is shown that R. A. Ferrell's calculation of a peak of Rev. lll: l214 (1958)), while valid, can also be obtained from a calculation of transition radiation (V. P. 8ilin and E. P. Fetisov, Phys. Rev. Letters 7of 374 (196l)). (L.N.N.)
openaire +2 more sources
Resonance Transition Radiation
2002The recent new development of the theory and experiment of resonant transition radiation (RTR) produced by electrons with energies up to few tens MeV in multilayer nanostructures is reviewed. The already revealed properties of this type of soft x-ray RTR require new experimental studies which become possible due to the achievement in the technology of ...
openaire +1 more source
Transition radiation from periodic stratified structures
Physical Review A, 1989The electromagnetic radiation emitted when a beam of electrons crosses a periodic stratified medium with a constant velocity is discussed. The treatment is valid for radiation wavelengths of the order of the period of the structure, particularly when Bragg reflections can take place.
, Pardo, , André
openaire +2 more sources
Transition radiation in EELS and cathodoluminescence
Ultramicroscopy, 2017The excitation probability of transition radiation is measured for varying beam energies in a transmission electron microscope once using optical spectrometry of the emitted light and second using electron energy loss spectrometry. In both cases similar results are found being in good agreement with theory.
Michael, Stöger-Pollach +3 more
openaire +2 more sources
1998
Publisher Summary The chapter presents a study on transition radiation. When an energetic charged particle makes a transition from vacuum into a metal, there is an emission of electromagnetic radiation known as “transition radiation.” This radiation appears whenever a charged particle crosses an interface separating media of different dielectric ...
openaire +1 more source
Publisher Summary The chapter presents a study on transition radiation. When an energetic charged particle makes a transition from vacuum into a metal, there is an emission of electromagnetic radiation known as “transition radiation.” This radiation appears whenever a charged particle crosses an interface separating media of different dielectric ...
openaire +1 more source
Transition Radiation from Three‐Layered Foils
physica status solidi (b), 1966AbstractA general expression is derived for the transition radiation from a foil consisting of three different layers with arbitrary dielectric constants and thicknesses. This expression is used to calculate transition radiation from oxide‐covered Al foils. The results are compared with the experimental data of Herickhoff et al. [7].
W Steinmann, H Wille
openaire +1 more source

