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laser

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WEPL016 Status, Applicability and Perspective of TINE-powered Video System, Release 3 controls, diagnostics, electron, monitoring 61
 
  • S. Weisse, D. Melkumyan
    DESY Zeuthen, Zeuthen
  • P. Duval
    DESY, Hamburg
  Experience has shown that imaging software and hardware installations at accelerator facilities needs to be changed, adapted and updated on a semi-permanent basis. On this premise, the component-based core architecture of Video System 3 was founded. In design and implementation, emphasis was, is, and will be put on flexibility, performance, low latency, modularity, interoperability, use of open source, ease of use as well as reuse, good documentation and multi-platform capability. Special effort was spent on shaping the components so that they can easily fit into small-scale but also into area-wide installations. Here, we describe the current status of the redesigned, almost feature-complete Video System, Release 3. Individual production-level use-cases at Hasylab*, PITZ** and Petra III*** diagnostic beamline will be outlined, demonstrating the applicability at real world installations. Finally, the near and far future expectations will be presented. Last but not least it must be mentioned that although the implementation of Release 3 is integrated into the TINE control system****, it is modular enough so that integration into other control systems can be considered.

* http://hasylab.desy.de
** http://pitz.desy.de
*** http://petra3.desy.de
**** http://tine.desy.de

 
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WEPL018 The FERMI@Elettra CCD image acquisition system electron, controls, background, diagnostics 64
 
  • G. Gaio, F. Asnicar, L. Pivetta, G. Scalamera
    ELETTRA, Basovizza
  FERMI@Elettra is a new 4th generation light source based on a linac-driven free electron laser which is currently being built in Trieste, Italy. The CCD image acquisition system is a fundamental diagnostic tool for the commissioning of the new accelerator. It is used for the characterization and tuning of the laser, electron and photon beams. The Tango based software architecture,the soft real-time performance and the embedded image processing algorithms are described.  
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THPL012 LLRF Control System Upgrade at FLASH controls, feedback, klystron, radiation 150
 
  • V. Ayvazyan, Z. Geng, M. K. Grecki, O. Hensler, M. G. Hoffmann, M. Hoffmann, T. Jezynski, W. Koprek, F. Ludwig, K. Rehlich, H. Schlarb, Ch. Schmidt, S. Simrock, H. C. Weddig
    DESY, Hamburg
  • K. Czuba
    Warsaw University of Technology, Institute of Electronic Systems, Warsaw
  The Free Electron Laser in Hamburg (FLASH) is a user facility providing high brilliant laser light for experiments. It is also a unique facility for testing the superconducting accelerator technology for the European XFEL and the International Linear Collider. As a test facility, the accelerator undergoes a constant modification and expansion. The recent upgrade started in autumn 2009. The beam energy is increased to 1.2 GeV by installing a 7th superconducting accelerating module. The new module is a prototype for the European XFEL. In order to increase the FEL radiation intensity by linearization of the beam phase space the 3rd harmonic superconducting RF cavities are installed in the injector. LLRF control system has been completely upgraded to latest generation controller boards, down-converters for higher intermediate frequency, algorithms improved like beam loading compensation, feed-forward waveform generation, etc. In order to improve the reference frequency signals the master oscillator and frequency distribution system has been upgraded as well. The paper summarizes the recently finished LLRF system upgrade and expected RF field control performance at FLASH.  
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FRCOMA02 FLASH DAQ Data Management and Access Tools controls, linac, extraction, free-electron-laser 195
 
  • V. Rybnikov, V. Kocharyan, K. Rehlich, E. Sombrowski, T. Wilksen
    DESY, Hamburg
  The Free Electron Laser in Hamburg (FLASH) at DESY is a user facility for the photon science community. It produces laser light of short wavelengths from the extreme ultraviolet down to soft X-rays. To study, monitor and document the machine performance and parameters and also to collect the results of the experiment measurements, a fast data acquisition (DAQ) system has been developed. Having above 1000 linear accelerator diagnostics channels collected by the DAQ currently results in a data rate of ~100MB/s. The large amount of data requires corresponding data storage and management to enable an efficient data retrieval. This paper will focus on the data paths, storage and bookkeeping. A number of tools provided for the users to work with DAQ data will be described. The current status of the achieved performance in the data storage and retrieval will be covered as well.  
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