Conveners
Speedtalks: Controls/Seeding/DAQ: Speedtalk - Beam controls
- Holger Schlarb (DESY)
In order to achieve unprecedented control over the phase space of electron beams in linear accelerators, the laser pulse of the photoinjector can be shaped by spatial light modulators (SLMs). Here, we use a convolutional neural network (CNN) from a proof-of-principle test with a visible diode laser on the TiSa-800-nm photoinjector laser system of the Ferinfrarot Linac- und Test-Experiment...
The European X-Ray Free-Electron Laser is the largest particle accelerator for X-ray laser generation worldwide. The facility utilizes hundreds of superconducting radio-frequency cavities (SRFCs) for the acceleration of electron bunches to very high energies, reaching up to 17.5 GeV. This enables the generation of extremely intense laser flashes for an important number of users every year....
Online tuning of real-world plants is a complex optimisation problem that continues to require manual intervention by experienced human operators. Autonomous tuning is a rapidly expanding field of research, where learning-based methods, such as Reinforcement Learning-trained Optimisation (RLO) and Bayesian optimisation (BO), hold great promise for achieving outstanding plant performance and...
Future particle accelerators will challenge the capabilities of current control systems. One of the possible solutions is the use of Machine Learning techniques. While several algorithms have already been implemented and are in current operation, some specific problems will require novel hardware systems in order to satisfy throughput and latency constraints.
In this study, we employ the...
A fast orbit feedback system is currently being developed for the upcoming fourth generation of the PETRA IV light source at DESY Hamburg. The performance of the FOFB system depends mainly on the frequency response of the subsystems, i.e. the corrector magnets, power supplies, cables, and vacuum chamber. A test bench is being developed for measuring the field quality of FOFB corrector magnets...
While the time arrival stability of the electron bunches in an FEL can be as good as 5-10 fs rms, the arrival time of the optical laser pulses is on the order of 10 fs rms or worse. Here will be presented the update on a laser pulse arrival time monitor: the arrival time of the optical pulses will be measured against a reference from the laser-based optical synchronization system. With a...
