Quantifying electron cascade size in various irradiated materials for free-electron laser applications

0556372 - FZÚ 2023 RIV GB eng J - Článek v odborném periodiku
Lipp, V. - Milov, I. - Medvedev, Nikita
Quantifying electron cascade size in various irradiated materials for free-electron laser applications.
Journal of Synchrotron Radiation. Roč. 29, Mar. (2022), s. 323-330. ISSN 0909-0495. E-ISSN 1600-5775
Grant CEP: GA MŠMT(CZ) EF18_053/0016627; GA MŠMT LTT17015
Grant ostatní: OP VVV - Mobility FZU 2(XE) CZ.02.2.69/0.0/0.0/18_053/0016627
Institucionální podpora: RVO:68378271
Klíčová slova: electron cascades * X-ray free-electron lasers * Monte Carlo * photon-induced cascade * electron transport
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 2.5, rok: 2022
Způsob publikování: Open access

Studying electron- and X-ray-induced electron cascades in solids is essential for various research areas at free-electron laser facilities, such as X-ray imaging, crystallography, pulse diagnostics or X-ray-induced damage. To better understand the fundamental factors that define the duration and spatial size of such cascades, this work investigates the electron propagation in ten solids relevant for the applications of X-ray lasers: Au, B4C, diamond, Ni, polystyrene, Ru, Si, SiC, Si3N4 and W. Using classical Monte Carlo simulation in the atomic approximation, we study the dependence of the cascade size on the incident electron or photon energy and on the target parameters. The results show that an electron-induced cascade is systematically larger than a photon-induced cascade. It was found that the cascade size can be controlled by careful selection of the photon energy for a particular material.
Trvalý link: http://hdl.handle.net/11104/0330646