Dr
Marie Kristin Czwalinna
(DESY)
16/10/2019, 16:30
Speed talks: Diagnostics
Free electron laser facilities, such as the European XFEL and FLASH, have increasingly high demands on the temporal stability of the electron bunches, as pump-probe experiments meanwhile aim for timing stabilities of few femtoseconds residual jitter only.
For a beambased feedback control of the linear accelerator, bunch arrival-time monitors are required that are capable of reaching...
Sonja Jaster-Merz
(DESY)
16/10/2019, 16:33
Speed talks: Diagnostics
Novel accelerator techniques such as dielectric laser acceleration (DLA) will be studied at the SINBAD facility (DESY Hamburg) using the ARES linac. Due to the low charge of the accelerated beams, charge densities below 1 aC per square micron are expected at the spectrometer screen, which are challenging to measure with conventional techniques used in multi-pC accelerators. Therefore, a...
Marten Koopmans
(HZB)
16/10/2019, 16:37
Speed talks: Diagnostics
With the VSR upgrade for the BESSY II electron-storage ring bunch resolved diagnostics are required for machine commissioning and to ensure the long-term quality and stability of operation. For bunch-length measurements a dedicated beamline equipped with a fast streak camera was set up and successfully commissioned. The beamline is also capable of direct beam-profile imaging and interferometry...
Mr
Benjamin Kehrer
(Karlsruhe Institute of Technology)
16/10/2019, 16:40
Speed talks: Diagnostics
At the Karlsruhe Research Accelerator (KARA), the micro-bunching instability is investigated during regular low-alpha runs. Therefore, several diagnostics setups are used for time-resolved and synchronous measurements of the different bunch parameters with the long-term goal to reconstruct the longitudinal phase space. This allows to study the CSR intensity, the bunch length and the horizontal...
Mr
Thiemo Schmelzer
(Karlsruhe Intitute of Technology (KIT))
16/10/2019, 16:43
Speed talks: Diagnostics
The low energy section of FLUTE (Ferninfrarot Linac- Und Test-Experiment), a compact versatile linear accelerator under construction at the Karlsruhe Institute of Technology (KIT), is currently being commissioned. For the characterization of the electron beam different diagnostics tools are available, such as profile monitors and an energy spectrometer. The electron beam is produced in the...
Mr
Bernhard Scheible
(Technische Hochschule Mittelhessen)
16/10/2019, 16:46
Speed talks: Diagnostics
Numerous advanced applications of X-ray free-electron lasers require pulse durations and time resolutions in the order of only a few femtoseconds or better. The generation of these pulses to be used in time-resolved experiments require synchronization techniques that can simultaneously lock all necessary components to a precision in the range of 1fs only. To improve the experimental conditions...
Mr
Matthias Reukauff
(DESY)
16/10/2019, 16:49
Speed talks: Diagnostics
A collaboration between DESY, PSI and CERN has been established to develop and build an advanced modular X-band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. The RF design of such structure, named Polarizable X-band (PolariX) TDS, has been done at CERN, while the fabrication took place at PSI, following the...
Mr
Matthias Reukauff
(DESY)
16/10/2019, 16:52
Speed talks: Diagnostics
The new PolariX TDS and its tomographic capabilities will be used in FLASH2, FLASHForward and SINBAD and shall provide a new level of beam diagnostics. It is developed in cooperation between DESY, PSI and CERN and requires X-band RF front-ends for the measurement of the 12 GHz electric fields. The cavity, waveguide and klystron signals will be down-converted from 12 GHz to 3 GHz and further...
Mr
Raffael Niemczyk
(PhD Student)
16/10/2019, 16:55
Speed talks: Diagnostics
At the Photo Injector Test Facility at DESY in Zeuthen (PITZ) photoelectron guns are conditioned and optimized for free-electron laser (FEL) facilities. In order to achieve a high lasing performance an electron beam with low transverse emittance and high current is required. Measurements of the slice emittance are necessary to determine both properties. At PITZ, transverse emittance...
Mr
Georgi Georgiev
(DESY Zeuthen)
16/10/2019, 16:58
Speed talks: Diagnostics
There are ongoing beam coupling studies at the Photo Injector Test facility at DESY in Zeuthen (PITZ). Electron beam asymetries have been observed and gun quadrupoles are installed to correct them. A 4-dimensional phase space characterization is required to understand the asymmetries in detail. A novel technique for 4-dimensional transverse beam phase space measurement is developed at PITZ....
Dr
Xiangkun LI
(DESY Zeuthen)
17/10/2019, 10:00
Speed talks: Beam Dynamics
A proof-of-principle experiment for a THz SASE FEL is undergoing preparation at the Photo Injector Test facility at DESY in Zeuthen (PITZ), as a prototype THz source for pump-probe experiments at the European XFEL, which could potentially provide up to mJ/pulse THz radiation while maintaining the identical pulse train structure as the XFEL pulses. One key design is to obtain a peak current of...
Mr
Patrick Schreiber
(KIT)
17/10/2019, 10:02
Speed talks: Beam Dynamics
For future synchrotron light sources different acceleration modes are of interest including operation with negative momentum compaction.
The Karlsruhe Research Accelerator (KARA) is an accelerator test facility that enables the implementation of a wide variety of operation schemes. This possibility is utilised by testing optics with a negative momentum compaction factor at KARA. Studies of...
Mr
Thiemo Schmelzer
(Karlsruhe Intitute of Technology (KIT))
17/10/2019, 10:06
Speed talks: Beam Dynamics
FLUTE (Ferninfrarot Linac- Und Test-Experiment) is a compact versatile linear accelerator under construction at the Karlsruhe Institute of Technology (KIT). It serves as a platform for a variety of accelerator studies and will generate strong THz pulses for photon science. In the 7 MeV injector section, currently under commissioning, the first experiment is being set up, the Split Ring...
Dr
Patrick Nonn
(DESY)
17/10/2019, 15:00
Speed talks: Controls/Seeding/DAQ
The Turkish Accelerator and Radiation Laboratory in Ankara (TARLA) is the first particle accelerator facility under construction in Turkey. The accelerator will deliver electrons to generate gamma radiation via Bremsstrahlung as well as to drive an IR-FEL. It consists of normal conducting and superconducting cavities. The MicroTCA Technology Lab is developing a turn-key LLRF system for this...
Dr
Patrick Nonn
(DESY)
17/10/2019, 15:02
Speed talks: Controls/Seeding/DAQ
The power consumption of a MicroTCA.4 slot is limited to 80 W. This limits the performance of CPUs, used in MicroTCA.4 crates. One option to circumvent this limitation, is to extend the PCI express bus of the crate to a high performance computer, instead.
This poster will present the experience gained with such a setup. It will further discuss some of the pros and cons of this setup in...
Jan Timm
(DESY)
17/10/2019, 15:10
Poster: Controls/Seeding/DAQ
ChimeraTK is a tool kit to write application servers for control systems.
When integrating the devices into a control system, the device servers usually contain a large fraction of error handling code. Many of these errors are runtime errors which occur when communicating with the hardware, and have similar handling strategies.
We report how ChimeraTK introduces a standardized way to raise...
Mr
Jan Marjanovic
(DESY)
17/10/2019, 15:12
Speed talks: Controls/Seeding/DAQ
Presented here are the latest updates from the development of the GigE Vision in
MicroTCA.
First we present the results of the certification process at AIA
plug-fest, where our implementation had to interface with cameras from several
vendors.
A new hardware platform (Struck SIS8160 - an Advanced Mezzanine Card for
MicroTCA platform) was also added to the list of supported hardware....
