Simulation of channeling and radiation of 855 MeV electrons and positrons in a small-amplitude short-period bent crystal

Abstract

Channeling and radiation are studied for the relativistic electrons and positrons passing through a Si crystal periodically bent with a small amplitude and a short period. Comprehensive analysis of the channeling process for various bending amplitudes is presented on the grounds of numerical simulations. The features of the channeling are highlighted and elucidated within an analytically developed continuous potential approximation. The radiation spectra are computed and discussed.

Channeling and radiation of the 855 MeV electrons enhanced by the re-channeling in a periodically bent diamond crystal

“…Channeling and radiation in the bent crystals have been extensively studied, to be mentioned among others is a series of works [11][12][13][14][15][16][17]. The most frequently addressed, both theoretically and experimentally, are the silicon crystals.…”

Channeling and radiation of 855 MeV electrons and positrons in straight and bent tungsten (1 1 0) crystals

“…The software package can be regarded as a powerful numerical tool to uncover the dynamics of relativistic projectiles in crystals, amorphous bodies, as well as in biological environments. Its efficiency and reliability has already been benchmarked for the channeling of ultra-relativistic projectiles (within the sub-GeV to tens of GeV energy range) in straight, bent and periodically bent crystals [20,21,[48][49][50][51][52][53][54]. In these papers verification of the code against available experimental data and predictions of other theoretical models was carried out.…”

Advances in multiscale modeling for novel and emerging technologies

“…Verification of the channeling module of MBN Explorer against experimental data as well as predictions of other theoretical models has been carried out in a large number of publications [24,33,42,[49][50][51][52][53], where channeling of electrons and positions in straight, bent and periodically bent crystals was studied, and the radiation spectra were calculated and successfully compared to experimental data.…”