Conveners
Session Beam Controls: Talks
- Holger Schlarb
Session Beam Controls: Speed talks
- Andrea Santamaria Garcia (KIT)
At the KIT Synchrotron KARA several systems are in place to measure and interact with individual electron bunches. A Bunch-by-Bunch (BBB) feedback system provides capabilities to control individual bunch motion whereas KAPTURE allows to readout multiple synchrotron radiation detector channels on the bunch-by-bunch level. This allows to closely study coherent radiation effects in our short...
Like many other subsystems in particle accelerators, the optical synchronization system at the European XFEL implements a joint high-performance control task over individual stations along the spatial extend of the facility. In the case of the optical synchronization system, this ensures a stable timing reference in the region of a few femtoseconds over more than 3.5km distance. Using...
For pump-probe experiments at free electron lasers, like the European XFEL,
a femtosecond precise bunch arrival time stability is mandatory. The
longitudinal intra bunch-train feedback (L-IBFB) system regulates the
arrival time, measured by a bunch arrival time monitor (BAM), with
femtosecond resolution. Due to the energy dependent path length of the
electron bunches through a...
FLUTE (Ferninfrarot Linac- und Test-Experiment) is a compact linac-based test facility for accelerator R&D and source of intense THz radiation for photon science. In preparation for the next experiments, the electron beam of the injector section of FLUTE has been characterized. In systematic studies the electron beam parameters, e.g., beam charge and emittance, are measured with several...
Multi-alkali antimonide-based photocathodes are suitable candidates for the electron sources of next-generation high brightness RF photoinjectors due to their excellent photoemissive properties, especially low thermal emittances, and high sensitivity to visible light. The utilization of these photocathodes is so far successfully demonstrated in low field DC gun-based photoinjectors. However,...
The ARES linac at DESY aims at producing and characterizing ultrashort electron bunches for cutting-edge applications (e.g. advanced and compact longitudinal diagnostics development, advanced and compact accelerating structures test, FLASH radiotherapy, etc.). The targeted properties (100-150 MeV, down to sub-pC charge and sub-fs duration) make the characterization of the bunch duration a...
Modeling of large-scale research facilities is extremely challenging due to complex physical pro-
cesses and engineering problems. We adopt a data-driven approach to model the longitudinal
phase-space diagnostic beamline at the photoinector of the European XFEL with an encoder-decoder
neural network model. We demonstrate that the model trained only with experimental data can make...
Within the scope of the Helmholtz AI Autonomous Accelerator Project machine learning methods for automating the accelerator operation are investigated. The recurrent task of manipulating the transverse beam parameters in the ARES experimental area poses as a test bed for studying reinforcement learning applications helping to automate complex tasks during accelerator operation. In this talk...
For future installations, new and powerful hardware components are required. In this talk, an 8-channel low-latency RF-digitizer, a distributed motion controller card and a RTM Class D1.3 digital processing board targeting serial JESD204 ADCs will be presented. All these boards are designed on the basis of ARM-based MPSoCs, which allow convenient board bring-up, configuration and...
