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- W4313543989 abstract "FOCUS (Fast Monte CarlO approach to Coherence of Undulator Sources) is a new GPU-based simulation code to compute the transverse coherence of undulator radiation from ultra-relativistic electrons. The core structure of the code, which is written in the language C++ accelerated with CUDA, combines an analytical description of the emitted electric fields and massively parallel computations on GPUs. The combination is rigorously justified by a statistical description of synchrotron radiation based on a Fourier optics approach. FOCUS is validated by direct comparison with multi-electron Synchrotron Radiation Workshop (SRW) simulations, evidencing a reduction in computation times by up to five orders of magnitude on a consumer laptop. FOCUS is then applied to systematically study the transverse coherence in typical third- and fourth-generation facilities, highlighting peculiar features of undulator sources close to the diffraction limit. FOCUS is aimed at fast evaluation of the transverse coherence of undulator radiation as a function of the electron beam parameters, to support and help prepare more advanced and detailed numerical simulations with traditional codes like SRW." @default.
- W4313543989 created "2023-01-06" @default.
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- W4313543989 date "2023-01-01" @default.
- W4313543989 modified "2023-09-26" @default.
- W4313543989 title "<i>FOCUS</i>: fast Monte Carlo approach to coherence of undulator sources" @default.
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- W4313543989 doi "https://doi.org/10.1107/s1600577522010748" @default.
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