A fast and lightweight tool for partially coherent beamline simulations in fourth-generation storage rings based on coherent mode decomposition.
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| Title: | A fast and lightweight tool for partially coherent beamline simulations in fourth-generation storage rings based on coherent mode decomposition. |
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| Authors: | Sanchez del Rio, Manuel1 srio@esrf.eu, Celestre, Rafael1, Reyes-Herrera, Juan1, Brumund, Philipp1, Cammarata, Marco1 |
| Source: | Journal of Synchrotron Radiation. Nov2022, Vol. 29 Issue 6, p1354-1367. 14p. |
| Subjects: | Storage rings, Undulator radiation, Geometrical optics, Optics |
| Abstract: | 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. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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