Recent updates of the Sirepo-Bluesky library for virtual beamline representation

Abstract

The Sirepo-Bluesky library allows the performing of various types of Bluesky scans with Sirepo simulations acting as virtual beamlines and registration of the results with the Databroker library. We report on the progress made since the previous SPIE’2020. In particular, the support for Shadow3 and MAD-X simulation codes in Sirepo was added to the Sirepo-Bluesky library, and the API for the support of the Sirepo/SRW code was refactored. Significant efforts were put into reliable testing and documentation. A “digital twin” of the future NSLS-II ARI beamline was created and the future Bluesky scans were prototyped using the Sirepo/SRW simulations. This approach enables new optimization methods for automated instrument alignment based on the Ophyd/Bluesky and makes them transferable from simulated to various hardware backends.

Latent Bayesian optimization for the autonomous alignment of synchrotron beamlines

“…The use of most beamlines is extremely competitive, and benchmarking alignment methods by performing ensembles of different runs is too time-intensive to be viable. Instead, we use digital twins of beamlines using the Sirepo-Bluesky backend [37], allowing us to optimize the beam with the same Bluesky-based code used to align real beamlines. We use a ray tracing-based beamline simulation code called Shadow [13] to model beam propagation, which does not recreate diffraction effects but accurately recreates the behavior of the beam under misalignments.…”