29 citations · 58 across the 8 of their papers we have counts for
10 papers
Machine Learning Based ROI Segmentation for Beam Imaging Diagnostics at Accelerators
Prachiti Sujit Chandratreya, Frank Mayet, Sergey Tomin +1
The European XFEL accelerator produces high-brightness X-ray pulses using relativistic electron beams. Beam characterization is performed at multiple diagnostic stations using scin…
A Method for Passive Streaker LPS Reconstruction
Sergey Tomin, Igor Zagorodnov
Understanding the electron beam distribution in the longitudinal phase space (LPS) is crucial for free electron laser (FEL) facilities. Conventionally, LPS diagnostics utilize radi…
Beam-Driven Transverse Deflecting Structure for Femtosecond Electron-Beam Diagnostics
S. Tomin, D. Bazyl, W. Decking +1
High-resolution longitudinal phase-space (LPS) diagnostics are essential for X-ray free-electron lasers and advanced accelerators. Conventional radio-frequency transverse deflectin…
Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon
Lars Funke, Markus Ilchen, Svitozar Serkez +59
Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses, which are the key to studying electron dynamics at their natural time scale a…
Longitudinal phase space diagnostics with a nonmovable corrugated passive wakefield streaker
Philipp Dijkstal, Weilun Qin, Sergey Tomin
Time-resolved diagnostics at Free-Electron Laser (FEL) facilities, in particular electron beam longitudinal phase space (LPS) and FEL power profile measurements, provide informatio…
First measurement of energy diffusion in an electron beam due to quantum fluctuations in the undulator radiation
Sergey Tomin, Evgeny Schneidmiller, Winfried Decking
We present measurements of slice energy spread growth due to quantum fluctuations of the undulator radiation at the European X-Ray Free-Electron Laser. The method uses a recently i…
Accurate measurement of uncorrelated energy spread in electron beam
Sergey Tomin, Igor Zagorodnov, Winfried Decking +2
We present measurements of slice energy spread at the injector section of the European X-Ray Free Electron Laser for an electron bunch with charge of 250 pC. Two methods considered…
High-fidelity Prediction of Megapixel Longitudinal Phase-space Images of Electron Beams using Encoder-Decoder Neural Networks
Jun Zhu, Ye Chen, Frank Brinker +3
Modeling of large-scale research facilities is extremely challenging due to complex physical processes and engineering problems. Here, we adopt a data-driven approach to model the…
Experimental validation of collective effects modeling at injector section of x-ray free-electron laser
Igor Zagorodnov, Sergey Tomin, Ye Chen +1
We consider the collective beam dynamics at the injector section of the European XFEL. The results of the measurements for the longitudinal phase space (LPS) of the electron beam a…
Automatic tuning of Free Electron Lasers
I. Agapov, G. Geloni, S. Tomin +1
Existing FEL facilities often suffer from stability issues: so electron orbit, transverse electron optics, electron bunch compression and other parameters have to be readjusted oft…