Parametric X-radiation for Bragg geomery

TL;DR

This paper investigates parametric X-ray radiation (PXR) in Si and LiH crystals under Bragg geometry, analyzing spectral-angular distributions and comparing theoretical predictions with experimental data.

Contribution

It provides a detailed theoretical and experimental analysis of PXR in Bragg geometry, highlighting the importance of both slow and fast wave contributions.

Findings

Both slow and fast waves contribute comparably to PXR intensity.

Theoretical models align well with experimental results.

PXR characteristics depend on crystal type and diffraction geometry.

Abstract

The PXR spectral-angular and angular distributions in Si and LiH crystals for Bragg geometry are presented. PXR for both the forward and backward diffraction is studied. It is shown that for Bragg geometry the contributions of both the slow and the fast waves in radiation intensity are comparable and only their joint account allows to describe the experimental results. The comparison of theory and experiment is carried out.