XV International Symposium on "Radiation from Relativistic Electrons in Periodic Structures "RREPS-25"

Session

Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

16 Sept 2025, 13:30

Conveners

Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect: Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

• Haixiao Deng (Shanghai Advanced Research Institute, Chinese Academy of Sciences)

294. Experimental Investigation of Coherent Cherenkov Diffraction Radiation: Polarization and Spatial Properties

Pavel Karataev (University of London (GB))

16/09/2025, 13:30

• Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

Invited

Cherenkov Diffraction Radiation (ChDR), which occurs when a fast charged particle moves parallel to and near a dielectric interface, has become the focus of intense research. As a form of polarization radiation, ChDR arises due to the dynamic polarization of the medium. Its properties are highly sensitive to various beam parameters, including the beam size, position, direction, energy, and...

290. Investigation of Spectral Parameters of Coherent Cherenkov Radiation Emitted by Pair Electron Bunches at the AREAL Accelerator

Dr Vahan Kocharyan (Institute of Applied Problems of Physics of NAS RA)

16/09/2025, 13:55

• Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

Invited

This study presents experimental findings on the spectral characteristics of coherent Cherenkov radiation generated by two electron bunches at the AREAL Accelerator. A cylindrical Teflon resonator employed as the radiation target. The study investigates the dependence of coherent radiation on the delay between the electron bunches (from 2 to 11 picoseconds). Detection was carried out using a...

293. Radiated energy and power of transition radiation generated by a twisted fermion incident on a metallic mirror

Malygina Nataliya (Tomsk Polytechnic University)

16/09/2025, 14:20

• Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

Oral

Transition radiation occurs when a particle crosses the boundary between two media with different dielectric permittivities. To eliminate the effects of wave packet scattering on the atoms of the medium the particle enters, it is necessary to create an aperture in the medium that is much larger than the characteristic size of the incoming wave packet. Due to the motion of a charged particle...

281. Transition radiation produced by a chain of N-Gaussians

George Lazarenko

16/09/2025, 14:35

• Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

Oral

A uniformly moving electron passing through a dielectric slab generates electromagnetic emission is known as transition radiation [1]. The radiation produced by a single particle has been thoroughly investigated within both classical electrodynamics and quantum mechanics. Current active research focuses on accounting for charged particle beam structure and targets with complex...

276. Quantum corrections to Cherenkov X-ray radiation

Pavel Shapovalov (National Research Nuclear University "MEPhI")

16/09/2025, 14:50

• Transition Radiation, Diffraction Radiation, Cherenkov radiation, and Smith-Purcell Effect

Oral

Cherenkov radiation is generated by a charged particle moving through a medium when its velocity exceeds the phase velocity of light in that medium. Contrary to popular belief, Cherenkov radiation can also be emitted in the X-ray frequency range [1]. This becomes possible near the photoabsorption edges of certain materials, where the real part of the dielectric susceptibility exhibits a sharp...