Spectra of radiation and created particles at intermediate energy in oriented crystal taking into account energy loss

TL;DR

This paper calculates the spectra of radiation and created particles in an oriented crystal at intermediate energies, considering energy loss, photon absorption, and multiple scattering effects like the LPM effect.

Contribution

It introduces a comprehensive calculation method that includes energy loss, photon absorption, and multiple scattering effects for radiation and pair creation in oriented crystals.

Findings

Spectral distributions are affected by energy loss and photon absorption.

Multiple scattering effects, including the LPM effect, significantly influence the spectra.

Results provide detailed spectral predictions for intermediate energy particles in crystals.

Abstract

The spectral distribution of positron created by photon and the spectral distribution of photons radiated from electron in an oriented single crystal of intermediate thickness is calculated at intermediate energies. The energy loss of charged particles as well as photon absorption are taken into account. The used basic probabilities of processes include the action of field of axis as well as the multiple scattering of radiating electron or particles of the created pair (the Landau-Pomeranchuk-Migdal (LPM) effect)