FEL2024 - 41st International Free Electron Laser Conference

Session

Electron diagnostics, timing, synchronization & controls

THA

22 Aug 2024, 08:45

POLIN

Conveners

Electron diagnostics, timing, synchronization & controls: Session-10

• Rasmus Ischebeck (Paul Scherrer Institute)

266. Measurement with sub-femtosecond resolution of electron and photon beams (THAI01)

Dr Philipp Dijkstal (Paul Scherrer Institute)

22/08/2024, 08:45

Electron diagnostics, timing, synchronization & controls

Invited Oral Presentation

Time-resolved diagnostics with sub-femtosecond resolution are of crucial importance for ultra-fast x-ray FEL applications. Radio-frequency (RF) transverse deflector structures (TDS) are typically employed to characterize the temporal properties of the electron beams driving FELs. If located after the undulator section, the TDS can measure the FEL power profile as well. In this contribution, we...

211. Efficient 6-dimensional phase space measurements using generative machine learning and applications to autonomous beam monitoring at LCLS-II (THAI02)

Ryan Roussel (SLAC National Accelerator Laboratory)

22/08/2024, 09:10

Electron diagnostics, timing, synchronization & controls

Invited Oral Presentation

Enhancing the performance and capabilities of free electron lasers, such as LCLS-II, hinges on our ability to precisely control and measure the 6-dimensional phase space distribution of the beam. However, conventional diagnostic techniques necessitate a substantial number of measurements and computational resources to characterize a single beam distribution, using many hours of valuable beam...

125. ML-driven Automated Tuning of XFEL for Various Experiments and User-specific Requirements at SACLA (THAC03)

Eito Iwai (RIKEN SPring-8 Center)

22/08/2024, 09:35

Electron diagnostics, timing, synchronization & controls

Contributed Oral Presentation

To satisfy recent complex requirements from XFEL applications, an automated tuning tool has been developed and regularly used for daily XFEL operations at SACLA. In a ring-based synchrotron radiation facility, an electron beam with identical characteristics is provided to many user beamlines. In contrast, in a linear accelerator-based XFEL facility with multiple beamlines, the electron beams...

139. Low-jitter conversion from optical references to electrical radio frequency signals (THAC04)

Erik Mansten (MAX IV Laboratory)

22/08/2024, 09:55

Electron diagnostics, timing, synchronization & controls

Contributed Oral Presentation

Ultra-fast science at free electron laser (FEL) facilities is pushing accelerator and FEL technology towards shorter laser pump and FEL probe pulses to resolve fast dynamics.

Ideally, the short pulses should be backed by a synchronization system that provide a pump-probe jitter that is similar to the pulse duration. This is challenging, and the achieved timing jitter is typically one order...

200. Single-shot electro-optic measurement of bunch shapes using diversity schemes at European XFEL and FLASH (THAC05)

Quentin Demazeux (Laboratoire de Physique des Lasers, Atomes et Molécules)

22/08/2024, 10:15

Electron diagnostics, timing, synchronization & controls

Contributed Oral Presentation

Laser-based electro-optic detection is a well-known tool for characterizing electron bunch shapes - and electric fields in general – in single-shot. However, reaching sub-ps resolution together with long acquisition length still remains a challenging problem. This motivated a search for novel conceptual approaches to the problem, based on the so-called diversity schemes* (i.e., using multiple...