Coordinatori
S2.2 Channeling & Radiations in Various Fields
- Giovanni Mazzitelli (LNF)
Dr.
Riccardo Pompili
(LNF)
24/09/18, 16:50
Oral presentation
A new method able to transport charged particle beams along a curved path is presented. It is based on curved capillary-discharge waveguides where the induced azimuthal magnetic field is used to focus the beam and, at the same time, keep it close to the capillary axis. We show that such a solution is highly tunable, it allows to develop compact structures providing large deflecting angles and,...
Sig.na
Anna Kotanjyan
(Yerevan State University)
24/09/18, 17:20
Oral presentation
We investigate the radiation of surface polaritons by a charged particle rotating around a dielectric waveguide. General case is considered when the waveguide is immersed in a homogeneous medium. For the evaluation of the corresponding electromagnetic fields the electromagnetic Green tensor is used. A formula is derived for the spectral distribution of the radiation intensity for surface...
Sig.na
Darya Sergeeva
(National Research Nuclear University "MEPhI")
24/09/18, 17:35
Oral presentation
In this report we theoretically investigate the effect of interaction between separated elements of 2D dotted grating and its influence on SPR characteristics. The developed approach allows us to calculate the macroscopic radiation properties proceeding from the microscopic properties of the grating [M.I. Ryazanov, A.A. Tishchenko, JETP (2006)]. We show that the local field effects can change...
Sig.
Hayk Gevorgyan
(Student)
24/09/18, 17:50
Oral presentation
Channeling positrons of a bunch oscillate with equal frequencies, but with different amplitudes in a harmonic potential of a planar channel. That is, the positron bunch radiation generates in a medium with polarization inhomogeneity.
Within the framework of the Thomas-Fermi statistical model, the electron density distribution, depending on the transverse coordinate of a channel, is...
Dr.
Alexey Gogolev
(Tomsk polytechnic university), Dr.
Roman Rezaev
(Tomsk polytechnic university)
24/09/18, 18:05
Oral presentation
Seems to be small any technical parameter deviations or uncertainties in the systems forming the scanning radiation (for example, diffraction gratings) may produce significant distortions of the wave phase that can lead to the wrong interpretation of the results of scanning (such as the incorrect location of the patient tumor). Due to this reason, the tomography systems based on Talbot effect...
Sig.
Anatoly Konkov
(Tomsk Polytechnic University), Sig.
Mikhail Shevelev
(Tomsk Polytechnic University)
24/09/18, 18:20
Oral presentation
Transition and Cherenkov radiation generated by a charge are well known phenom- ena and find a broad application for different scientific communities. Frank was the first to point out the possibility of interference between transition and Cherenkov radi- ation [1]. This interference is understandable, since both radiation mechanisms may be described as a secondary electromagnetic field...
