EPJ D Colloquium - All-atom relativistic molecular dynamics simulations of channeling and radiation processes in oriented crystals
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- Published on 24 March 2021
In a new Colloquium article published in EPJD, authors from the MBN Research Center (Frankfurt am Main, Germany) review achievements made recently in the field of numerical modeling of ultra-relativistic projectiles propagation in oriented crystals, radiation emission and related phenomena. This topic is highly relevant to the problem of designing novel gamma-ray light sources (LSs) based on the exposure of oriented crystals to the beams of charged particles. Crystal-based LSs can generate radiation in the photon energy range where the technologies based on the fields of permanent magnets become inefficient or incapable.
Construction of novel crystal-based LSs is an extremely challenging task, which constitutes a highly interdisciplinary and broad field with numerical modelling being part of it. The authors focus on the approaches that allow for advanced computational exploration beyond the continuous potential and on binary collisions frameworks. A detailed description of the multiscale all-atom relativistic molecular dynamics approach implemented in the MBN Explorer package is given. Several representative case studies related to ultra-relativistic projectiles channeling and calculation of the spectral intensities are presented. In most cases, the input data used in the simulations, such as crystal orientation and thickness, the bending radii, periods and amplitudes, as well as the energies of the projectiles, have been chosen to match the parameters used in the accomplished and the ongoing experiments. Wherever available the results of calculations are compared with the experimental data and/or the data obtained by other numerical means.
Andrei V. Korol, Gennady B. Sushko, Andrey V. Solov’yov (2021),
All-atom relativistic molecular dynamics simulations of channeling and radiation processes in oriented crystals,
European Physical Journal D 75:107, DOI: 10.1140/epjd/s10053-021-00111-w
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