FIELDS, PARTICLES, AND NUCLEI

Coherent transition radiation of a hollow Bessel beam

D. Yu. Sergeeva, A. A. Tishchenko

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409 Russia

Abstract: The transition radiation from a relativistic electron Bessel beam has been theoretically investigated. The form factor determining the possibility of realizing intense coherent radiation from a Bessel beam has been calculated. The results for the hollow Bessel and Gaussian beams are compared. A target in the form of a two-dimensional planar photonic crystal is considered to analyze the transition radiation characteristics.

Received: 15.04.2025
Revised: 22.04.2025
Accepted: 22.04.2025

DOI: 10.31857/S0370274X25050139

 English version: Journal of Experimental and Theoretical Physics Letters, 2025, 121:10, 759–765