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, 15:25

Conveners

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

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

299. The investigation of the potential for the generation of Cherenkov diffraction radiation using 3D-printed plastic targets

Dr Sergei Stuchebrov (National Research Tomsk Polytechnic University)

16/09/2025, 15:25

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

Oral

The generation of polarized radiation by electron beams in the vicinity of dielectric objects has attracted the attention of researchers, due to its potential applications in both measuring beam parameters and generating intense electromagnetic radiation at THz and sub-THz frequencies. One particularly interesting form of this radiation is the Cherenkov diffraction radiation (ChDR), which...

295. Longitudinal Beam Diagnostics Based on Super-Radiant Coherent Cherenkov Diffraction Radiation

Pavel Karataev (University of London (GB))

16/09/2025, 15:40

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

Oral

Longitudinal diagnostics are essential for accelerator installations that generate short particle bunches arranged in extended pulse trains. While several methods exist for diagnosing individual short bunches—each with their own advantages and limitations—effective diagnostics for long trains of ultra-short bunches remain scarce. On the other hand, parameters such as bunch uniformity,...

292. Coherent Cherenkov Diffraction Radiation from Short Electron Bunches in Electro-Optic Crystals

Alexander Potylitsyn

16/09/2025, 15:55

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

Oral

Electro-optic crystals (EOCs), such as lithium niobate, are widely used in accelerator physics for measuring the duration of sub-picosecond electron bunches. When an electron bunch passes near such a crystal, its Coulomb field modifies the dielectric tensor of the material, εᵢₖ, via the Pockels effect. This results in a change in the polarization state of a probe laser beam traversing the EOC...

280. Smith-Purcell radiation in medium for microelectronics

Alexey Tishchenko

16/09/2025, 16:10

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

Oral

The Smith-Purcell effect has various applications, from noninvasive diagnostics of relativistic electron beams and generation of powerful THz radiation to micro- and nano-electronics. In the latter field, the instruments and devices operate with small currents, down to single electrons. Being sensitive to electrons passing near periodic structures, Smith-Purcell radiation (SPR) can be used to...