# Interference in spectrum of radiation from doubly scattered charged particle

## TL;DR

This paper demonstrates the existence of interference effects in the radiation spectrum of a doubly scattered electron, revealing oscillations dependent on electron energy and scattering angles, with implications for understanding radiation formation.

## Contribution

It introduces a detailed analysis of interference patterns in radiation from doubly scattered electrons, including a nondipole decomposition relation and general notions of field formation.

## Key findings

- Oscillations in the spectrum depend on electron Lorentz factor and scattering angles.
- Interference patterns are linked to jetlike radiation configurations.
- Derived a nondipole decomposition relation for the radiation spectrum.

## Abstract

Existence of different types of interference in the spectrum of radiation emitted by a doubly hard scattered electron is demonstrated. The spectrum develops oscillations in two regions: the hard, where the oscillations depend on the electron Lorentz factor, and the soft, where the oscillations depend on the electron scattering angles. This interference pattern owes to the presence of jetlike radiation configurations, formed by a piecewise-rectilinearly moving electron and the accompanying photon. The corresponding nondipole decomposition relation is derived. Notions describing proper field formation and interference, and presumably being applicable more generally, are discussed in detail.