26-28 September 2018
HZDR
Europe/Berlin timezone
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Contribution List

Displaying 47 contributions out of 47
Type: Poster Session: Poster Session
Track: SYNCHRONIZATION AND CONTROL
The timing jitter between accelerator-based light sources and external laser systems is nowadays the critical limit for the achievable temporal resolution in ultrafast time-resolved experiments at 4th generation light sources such as superradiant terahertz (TELBE) facilities or X-FEL's. In this work we demonstrate the proof-of-principle experiment. It was experimentally shown that our scheme all ... More
Presented by Mr. Min CHEN on 27 Sep 2018 at 3:30 PM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
The accelerators of FLASH and of the European XFEL deliver electron bunches in bursts of several hundred pulses with MHz repetition rates every 100ms. These bunches are distributed between different undulator beamlines to generate FEL pulses with few to hundred femtoseconds temporal width in the soft to hard x-ray regime. To run these high repetition rate FELs a large number of different fast dete ... More
Presented by Dr. Marie Kristin CZWALINNA on 27 Sep 2018 at 11:00 AM
Session: BEAM DYNAMICS
Presented by Dr. Paul GOSLAWSKI on 26 Sep 2018 at 3:00 PM
Type: Poster Session: Poster Session
Track: SYNCHRONIZATION AND CONTROL
Superconducting Radiofrequency Cavities as planned for BESSY-VSR or bERLinPro require a high stable RF field of the accelerating mode in order to allow as for VSR a stable RF beating scheme. Further, to ensure efficient operation at low RF power consumption, these type of cavities are operated at low coupling, i.e. narrow RF bandwidth. Hence, any disturbance to the system by unwanted cavity detuni ... More
Presented by Dr. Andriy USHAKOV on 27 Sep 2018 at 3:30 PM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
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Presented by Carsten MAI on 27 Sep 2018 at 11:00 AM
Presented by Martin KILLENBERG on 26 Sep 2018 at 10:00 AM
Session: Close out
Presented by Dr. Holger SCHLARB on 28 Sep 2018 at 11:30 AM
Session: SYNCHRONIZATION AND CONTROL
Track: SYNCHRONIZATION AND CONTROL
Presented by Dr. Andriy USHAKOV on 27 Sep 2018 at 1:30 PM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
In collaboration between DESY MPY-1 and DESY FH ATLAS a silicon strip detector for the ARES spectrometer is being developed. This detector will be used for low (sub-pC) charged beams where a good spatial resolution is needed. It will be placed after the spectrometer dipole. The detector consists of two 1cm x 1cm silicon strip sensors. The readout is done by 4 charge-to-digital converters with t ... More
Presented by Sonja JASTER-MERZ on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
FLUTE (Ferninfrarot Linac- Und Test-Experiment) will be a new compact versatile linear accelerator at KIT. Its primary goal is to serve as a platform for a variety of accelerator studies as well as to generate strong ultra-short THz pulses for photon science. The machine consists of an RF gun, a travelling wave linac and a D-shaped bunch compressor chicane with corresponding diagnostic sections. I ... More
Presented by Mr. Thiemo SCHMELZER on 27 Sep 2018 at 11:00 AM
Session: Facility Report
Presented by Carsten MAI on 26 Sep 2018 at 2:15 PM
Session: Facility Report
Presented by Dr. Florian HUG on 26 Sep 2018 at 1:30 PM
Session: Facility Report
Presented by Dr. Marcel SCHUH on 26 Sep 2018 at 2:00 PM
Session: Facility Report
Presented by Dr. Holger SCHLARB on 26 Sep 2018 at 1:15 PM
Session: Facility Report
Presented by Dr. Paul GOSLAWSKI on 26 Sep 2018 at 1:45 PM
Session: Facility Report
Presented by Dr. Michael GENSCH on 26 Sep 2018 at 1:00 PM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
High brightness high-repetition rate (MHz-class) electron source for European free-electron lasers (FELs) upgrade program is under design at the Photo Injector Test facility at DESY, Zeuthen site (PITZ). A normal-conducting (NC) cavity resonating in the VHF band at 216.7 MHz operating in continuous wave (cw) mode is chosen as the backup candidate. The preliminary design studies of the NC cw RF gun ... More
Presented by Dr. Guan SHU on 26 Sep 2018 at 4:30 PM
Session: Tutorial
Presented by Dr. Ulrich SCHRAMM on 26 Sep 2018 at 6:00 PM
Type: Poster Session: Poster Session
Track: SYNCHRONIZATION AND CONTROL
Up to now the sensitivity of the field detectors for the accelerating cavitites are limited by the LLRF system and actuators to about 3fs for a bandwidth of 1 MHz. The main limitation is using digital field detection schemes, which involves front-ends, LO-generation and analog to digital converters. Within this poster the field detection method based on a suppressed carrier signal is presente ... More
Presented by Ms. Louise SPRINGER on 27 Sep 2018 at 3:30 PM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
As is well known, coherent emission of radiation from ultrarelativistic electron bunches takes place when the duration of the bunches is shorter than the radiation wavelength. In this case, the contributions to the field from all electrons sum up in phase, and the output intensity scales as the square number of electrons in the bunch. In this work, we consider the particular case of coherent emiss ... More
Presented by Dr. Sergey TOMIN on 26 Sep 2018 at 4:30 PM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
The beam dynamics in a particle accelerator are influenced by its impedances. In particular at high charge densities, the production of coherent synchrotron radiation is governed by the longitudinal impedance. With Inovesa, an in-house developed simulation tool, it is possible to simulate the dynamics of the longitudinal phase space density inside a storage ring by solving the Vlasov-Fokker-Planck ... More
Presented by Mr. Patrick SCHREIBER on 26 Sep 2018 at 4:30 PM
Session: SYNCHRONIZATION AND CONTROL
Track: SYNCHRONIZATION AND CONTROL
Presented by Dr. Klaus ZENKER on 27 Sep 2018 at 1:45 PM
Type: Poster Session: Poster Session
Track: SYNCHRONIZATION AND CONTROL
Presented by Mr. Jost MUELLER on 27 Sep 2018 at 3:30 PM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
Laser-wakefield accelerators (LWFA) feature electron bunch durations on a scale of a few fs. Precise knowledge of the longitudinal profile of such ultra-short electron bunches is essential for the design of future table-top X-ray light sources. The resolution limit, as well as the limited reproducibility of electron bunches, pose big challenges for LWFA beam diagnostics. Spectral measurements o ... More
Presented by Mr. Omid ZARINI, Dr. Alexander DEBUS on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
Linear array detectors with high spatial resolution and MHz frame-rates are essential for high-rate experiments at accelerator facilities. We have developed KALYPSO, a line array detector with 1024 pixels operating at 10 Mfps. To improve the spatial resolution and sensitivity at different wavelengths, novel Si microstrip sensors have been developed with a pitch of 25 μm. Furthermore, to enable me ... More
Presented by Ms. Meghana Mahaveer PATIL on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
We will introduce the current as well as planned on-chip devices manufactured in standard industrial processes for THz based diagnosis. This includes on-chip spectrometers, multi-element detectors providing spatial information as well as polarization sensitive approaches.
Presented by Dr. Niels NEUMANN on 27 Sep 2018 at 11:00 AM
Presented by Dr. Michael KUNTZSCH on 28 Sep 2018 at 9:15 AM
Presented by Dr. Holger SCHLARB on 28 Sep 2018 at 9:30 AM
Presented by Dr. Paul GOSLAWSKI on 28 Sep 2018 at 10:00 AM
Presented by Pawel EVTUSHENKO on 28 Sep 2018 at 9:00 AM
Presented by Anke-Susanne MUELLER on 28 Sep 2018 at 9:45 AM
Type: Poster Session: Poster Session
Track: SYNCHRONIZATION AND CONTROL
The new PolariX TDS cavities developed in cooperation between DESY, PSI and CERN require 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 processed in a standard 3 GHz S-Band RF control system based on MicroTCA.4. In this poster, we will present the 9 GHz LO generation method a ... More
Presented by Mr. Matthias REUKAUFF on 27 Sep 2018 at 3:30 PM
Session: DIAGNOSTICS
Track: DIAGNOSTICS
Presented by Dr. Bertram GREEN, Mr. Tester1 TESTER1 on 27 Sep 2018 at 9:00 AM
Session: DIAGNOSTICS
Track: DIAGNOSTICS
Presented by Mr. Artem NOVOKSHONOV on 27 Sep 2018 at 9:20 AM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
The poster discusses the technologies currently investigated at KIT as potential diagnostic techniques to explore plasma properties of plasma accelerators. The work is supported by the Helmholtz President’s strategic fund IVF "Plasma accelerators".
Presented by Dr. Erik BRUENDERMANN on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: SYNCHRONIZATION AND CONTROL
Phase 1 of the "Ferninfrarot Linac- und Test-Experiment" (FLUTE), a 41 MeV linear accelerator, is currently in commissioning at KIT. Phase 1 comprises mainly the RF system including the LLRF system, electron gun, gun laser, timing system and various beam diagnostics elements. The current status of the commissioning is given in this contribution.
Presented by Dr. Michael NASSE on 27 Sep 2018 at 3:30 PM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
The operation of synchrotron light sources with short electron bunches increases the emitted coherent synchrotron radiation (CSR) power in the THz frequency range. However, the spatial compression leads to complex longitudinal dynamics, causing the formation of micro-structures in the longitudinal bunch profiles. The fast temporal variation and small scale of these micro-structures put challenging ... More
Presented by Mr. Tobias BOLTZ on 26 Sep 2018 at 4:30 PM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
At the KIT storage ring KARA (KArlsruhe Research Accelerator), the momentum compaction factor can be reduced leading to natural bunch lengths in the ps range. Due to the high degree of longitudinal compression, the micro-bunching instability arises. During this longitudinal instability, the bunches emit bursts of intense coherent synchrotron radiation in the THz frequency range caused by the co ... More
Presented by Miriam BROSI on 26 Sep 2018 at 4:30 PM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
The application of Laser Wakefield Accelerators (LWFA) is a potential key for realizing extremely compact Free Electron Lasers (FEL) due to an unprecedented high longitudinal electric field inside the laser-driven plasma wave. LWFA-based electron beams exhibit challenging initial conditions in terms of beam divergence and large energy spread. The superconducting transverse gradient undulator (TGU) ... More
Presented by Mr. Kantaphon DAMMINSEK on 26 Sep 2018 at 4:30 PM
Session: SYNCHRONIZATION AND CONTROL
Track: SYNCHRONIZATION AND CONTROL
Presented by Tino LANG on 27 Sep 2018 at 2:00 PM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
In this contribution we show how the THz photondiagnostic efforts within ARD-ST3 have enabled several scientific breakthrough experiments at the TELBE THz facility
Presented by Dr. Sergey KOVALEV on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
Different options for proving intense THz filed for THz pump - X-ray probe experiments at the European XFEL using laser-based and/or accelerator-based techniques are currently discussed. Here we present a concept which is based on a superconducting THz undulator utilizing the spent electron beam of the eV scale linac as an afterburner to produce narrowband, tunable, few-cycle THz pulses with world ... More
Presented by Mr. Takanori TANIKAWA on 26 Sep 2018 at 4:30 PM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
Free Electron Laser in Hamburg (FLASH) employs a unique FEL scheme which provides naturally synchronized X-ray and intense THz pulses, generated from the same electron bunch, enabling the performance of exciting THz-XUV pump-probe experiments. Characterization of the spectrum has a high priority in many experiments. We have designed a spectrometer to characterize the broadband intense THz puls ... More
Presented by Ms. Ekaterina ZAPOLNOVA on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: DIAGNOSTICS
Towards FPGA-based high speed data aquisition with online analysis
Presented by Mr. Mohammed BAWATNA on 27 Sep 2018 at 11:00 AM
Type: Poster Session: Poster Session
Track: BEAM DYNAMICS
The photon flux of superradiant THz undulator emission is calculated from the square modulus of electron-bunch form factors and single-particle spectra with a start-to-end simulation. In this presentation, we will report some preliminary results for boosting THz pulse energies assuming specific ideal model bunch forms for the case of the TELBE facility and an envisioned future THz afterburner undu ... More
Presented by Mr. Takanori TANIKAWA on 26 Sep 2018 at 4:30 PM
Session: BEAM DYNAMICS
Presented by Mr. Daniel MARX on 26 Sep 2018 at 3:20 PM
Session: Tutorial
Presented by Dr. Sven LEDERER on 27 Sep 2018 at 5:00 PM