New mechanism of X-ray radiation from a relativistic charged particle in a dielectric random medium

TL;DR

This paper introduces a novel mechanism for X-ray radiation from relativistic charged particles in a dielectric medium with randomly distributed microspheres, explaining experimental observations with a stronger energy dependence than traditional theories.

Contribution

It proposes a new diffusional scattering mechanism of pseudophotons that enhances radiation intensity dependence on particle energy in random dielectric media.

Findings

The new mechanism predicts a stronger energy dependence of radiation intensity.

It explains recent experimental results on superconducting granules.

The approach extends understanding of radiation in complex dielectric systems.

Abstract

We have considered X-ray radiation of a relativistic charged particle moving in a system consisting of microspheres distributed randomly in a dielectric material. A new mechanism based on the diffusional scattering of pseudophotons is suggested. The result leads to a stronger dependence of radiation intensity on the particle energy, than that predicted by the traditional transition radiation theory,and explains a recent experiment on such a system of randomly distributed superconducting granules.