Conveners
Session 4: Beam Dynamics: Talks
- Erik Bruendermann (KIT)
Session 4: Beam Dynamics: Speed Talks
- Michael Kuntzsch (HZDR)
Session 4: Beam Dynamics: Posters
- Michael Kuntzsch (HZDR)
In the last years, the visualization of structural dynamics, which take place on time scales as short as few femtoseconds has been complemented by pump-probe techniques that employ relativistic electrons as probes, e.g. ultrafast electron diffraction (UED). These applications demand not only extreme beam quality in 6‑D phase space such as few nanometer transverse emittances and femtosecond...
High-Resolution 2D Streak Camera Investigations:
Injection Dynamics @ BESSY II
The BESSY optical timing beamline with its high resolution 2D streak camera system will be presented. The system can be optimized for high time resolution (< 0.6 ps rms), or single-shot sensitivity (single turn, single bunch), or high spatial resolution (< 0.1 mm rms or even below by combination with...
The Helmholtz Lienar Accelerator has reached the next project milestone with the commissioning of the superconducting Advanced Demonstrator cryomodule, comprising four superconducting crossbar H-mode (CH) cavities and superconducting steerer magnets. Parallel to the commissioning of the superconducting main accelerator, the injector linac is revised for integration into the standalone linac...
Research and development of an accelerator-based THz source prototype for pump-probe experiments at the European XFEL are ongoing at the Photo Injector Test Facility at DESY in Zeuthen (PITZ). A proof-of-principle experiment to generate THz SASE FEL radiation using an LCLS-I undulator driven by an electron bunch from the PITZ accelerator has been prepared. After four years of designs and...
The linac-based test facility FLUTE (Ferninfrarot Linac Und Test Experiment) at KIT will be used to study novel accelerator technology and provide intense THz pulses. In this paper, we present start-to-end simulation studies of FLUTE with different bunch charges. We employ a parallel Bayesian optimization algorithm for different bunch charges of FLUTE to find optimized accelerator settings for...
The transverse emittance of a charged particle beam is an important figure of merit for many accelerator applications, such as ultra-fast electron diffraction, free electron lasers and the operation of new compact accelerator concepts in general. One of the easiest to implement methods to determine the transverse emittance is the phase advance scan method using a focusing element and a screen....
For the development of future synchrotron light sources new operation modes often have to be considered. One such mode is the operation with a negative momentum compaction factor to provide the possibility of increased dynamic aperture. For successful application in future light sources, the influence of this mode has to be investigated. At the KIT storage ring KARA (Karlsruhe Research...
Two parallel corrugated plates will be installed at the KIT storage ring KARA (KArlsruhe Research Accelerator). This impedance manipulation structure will be used to study and eventually control the beam dynamics and the emitted coherent synchrotron radiation (CSR).
In this contribution, we present the influence of the parameters of the structure on its impedance and the results obtained with...
We present the first commissioning results of the movable bunch compressor designed for the ARES linac at DESY. The development and simulated performance has been reported and predicts sub-fs electron bunches with high charge densities. Commissioning results of the injector part of the ARES linac delivered promissing beam quality results to achieve these numbers. The bunch compressor system...
The injection of LPA-generated beams into a storage ring is considered to be one of the most prominent applications of laser plasma accelerators (LPAs). The Karlsruhe Institute of Technology (KIT) and Deutsches Elektronen-Synchrotron (DESY) cooperate to address the key challenges with the aim to successfully demonstrate injection of LPA-generated beams into a compact storage ring with large...
Superconducting RF allows for long RF pulses compared to warm normal conducting machines. At the European XFEL these pulses are used to transport up to 2700 bunches to the user stations per pulse.
In order to allow for flexible control of beam properties the LLRF system was modified. We now have the ability to drive the RF pulses very flexible to accommodate either beam based corrections for...
A new generation of normal conducting 1.3GHz RF gun was developed to provide a high-quality electron source for superconducting linac driven free-electron lasers like FLASH and European XFEL. Compared to the Gun4 series, Gun5 aims for a 50% increase of the duration of the RF pulse (up to 1 ms at 10 Hz repetition rate) combined with high gradients (up to ~60 MV/m at the cathode). The first...
At X-ray free electron lasers a high temporal stability of produced photon pulses is a key parameter for many classes of experiments using a pump-probe scheme. At the European XFEL an optical synchronization system in combination with beam-based feedbacks guarantees an FEL-to-laser pulse short-term jitter on the sub-10 fs level. However, environmental factors acting on different time scales...
