Author: Rehlich, K.
Paper Title Page
TUDAUST04 Status of the Control System for the European XFEL 597
  • K. Rehlich
    DESY, Hamburg, Germany
  DESY is currently building a new 3.4 km-long X-ray free electron laser facility. Commissioning is planned in 2014. The facility will deliver ultra short light pulses with a peak power up to 100 GW and a wavelength down to 0.1 nm. About 200 distributed electronic crates will be used to control the facility. A major fraction of the controls will be installed inside the accelerator tunnel. MicroTCA was chosen as an adequate standard with state-of-the-art connectivity and performance including remote management. The FEL will produce up to 27000 bunches per second. Data acquisition and controls have to provide bunch-synchronous operation within the whole distributed system. Feedbacks implemented in FPGAs and on service tier processes will implement the required stability and automation of the FEL. This paper describes the progress in the development of the new hardware as well as the software architecture. Parts of the control system are currently implemented in the much smaller FLASH FEL facility.  
slides icon Slides TUDAUST04 [6.640 MB]  
MicroTCA.4: a New Hardware Standard for Accelerators and Experiments  
  • K. Rehlich
    DESY, Hamburg, Germany
  Several accelerator labs developed an extension for the MicroTCA standard together with industrial partners within the PICMG organization. This new MTCA.4 standard adds the required IO, clock and trigger capabilities to the telco dominated basic specifications. This paper describes the unique technology for high resolution and high performance front-end data acquisition and control. MTCA.4 provides comfortable sized Rear Transition Modules, high speed serial communication, precision clock distribution and full management. This make it an ideal choice for high precision analog IO in large installations. The European XFEL project is based on this new standard and several other labs are in a prototyping or evaluation phase.  
poster icon Poster WEPMS009 [3.689 MB]  
THBHAUST04 jddd, a State-of-the-art Solution for Control Panel Development 1189
  • E. Sombrowski, A. Petrosyan, K. Rehlich, W. Schütte
    DESY, Hamburg, Germany
  Software for graphical user interfaces to control systems may be developed as a rich or thin client. The thin client approach has the advantage that anyone can create and modify control system panels without specific skills in software programming. The Java DOOCS Data Display, jddd, is based on the thin client interaction model. It provides "Include" components and address inheritance for the creation of generic displays. Wildcard operations and regular expression filters are used to customize the graphics content at runtime, e.g. in a "DynamicList" component the parameters have to be painted only once in edit mode and then are automatically displayed multiple times for all available instances in run mode. This paper will describe the benefits of using jddd for control panel design as an alternative to rich client development.  
slides icon Slides THBHAUST04 [0.687 MB]