# Radiation of a Charge in Dielectric Concentrator for Cherenkov Radiation: Off-Axis Charge Motion

## TL;DR

This paper theoretically analyzes how off-axis charge motion affects Cherenkov radiation in a dielectric concentrator, revealing non-symmetric field components and their impact on energy concentration, with potential applications discussed.

## Contribution

It extends previous symmetric models to include off-axis charge trajectories, showing their influence on the radiation field distribution in dielectric Cherenkov concentrators.

## Key findings

- Non-symmetric field components significantly affect energy focusing.
- Off-axis charge motion alters the radiation pattern.
- Applications in improved Cherenkov radiation devices.

## Abstract

A theoretical investigation of radiation field produced by a charge moving through the dielectric concentrator for Cherenkov radiation is performed for the general case where a charge trajectory is shifted with respect to the target axis. The idea of dielectric target with specific profile of the outer surface was presented and investigated in our previous papers for the symmetric case. Here we show how non-symmetric field components generated in the bulk of target affect field distribution near the focus where strong concentration of the energy occurs. Possible applications of this target are discussed. This version also contains corrections (Appendix C) made after publication.