Radiation of photons in process of charge particle volume reflection in bent single crystal

TL;DR

This paper predicts and simulates a new high-power photon radiation emitted during charge particles' volume reflection in bent crystals, which is less sensitive to entrance angle and charge sign.

Contribution

It introduces a novel type of radiation associated with volume reflection in bent crystals, supported by computer simulations at high energies.

Findings

Radiation power is comparable to channeling radiation.

Radiation is less sensitive to entrance angle and particle charge.

Simulated spectra for 10 GeV and 200 GeV particles are provided.

Abstract

New type of radiation in crystals is predicted and investigated in computer simulation. It is shown that process of volume reflection of electrons and positrons in bent crystals is accomplished with high-power radiation of photons. Volume reflection radiation has intensity comparable with known channeling radiation, but it is less sensitive to entrance angle and sign of charge of a particle. Simulated spectra of radiation power are presented for 10 GeV and 200GeV particles.