A fast and lightweight tool for partially coherent beamline simulations in fourth-generation storage rings based on coherent mode decomposition
| Autor: | Manuel Sanchez del Rio, Rafael Celestre, Juan Reyes-Herrera, Philipp Brumund, Marco Cammarata |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Synchrotron Radiation, Vol 29, Iss 6, Pp 1354-1367 (2022) |
| Druh dokumentu: | article |
| ISSN: | 1600-5775 16005775 |
| DOI: | 10.1107/S1600577522008736 |
| Popis: | A new algorithm to perform coherent mode decomposition of undulator radiation is proposed. It is based on separating the horizontal and vertical directions, reducing the problem by working with one-dimension wavefronts. The validity conditions of this approximation are discussed. Simulations require low computer resources and run interactively on a laptop. The focusing with lenses of the radiation emitted by an undulator in a fourth-generation storage ring (EBS-ESRF) is studied. Results are compared against multiple optics packages implementing a variety of methods for dealing with partial coherence: full two-dimension coherent mode decomposition, Monte Carlo combination of wavefronts from electrons entering the undulator with different initial conditions, and hybrid ray-tracing correcting geometrical optics with wave optics. |
| Databáze: | Directory of Open Access Journals |
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