Author: Czwalinna, M.K.
Paper Title Page
WEOA03 First Electro-Optical Bunch Length Measurements from the European XFEL 338
 
  • B. Steffen, M.K. Czwalinna, C. Gerth, P. Peier
    DESY, Hamburg, Germany
 
  Three electro-optical bunch length detection systems based on spectral decoding have been installed and are being commissioned at the European XFEL. The systems are capable of recording individual longitudinal bunch profiles with sub-picosecond resolution at a bunch repetition rate 1.13 MHz. Bunch lengths and arrival times of entire bunch trains with single-bunch resolution have been measured as well as jitter and drifts for consecutive bunch trains. In this paper, we present first measurement results for the electro-optical detection system located after the second bunch compressor. A preliminary comparison with data from the bunch arrival-time monitor shows good agreement.  
slides icon Slides WEOA03 [4.496 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2018-WEOA03  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THOA02 High-Speed Direct Sampling FMC for Beam Diagnostic and Accelerator Protection Applications 534
 
  • J. Zink, M.K. Czwalinna, M. Fenner, S. Jabłoński, J. Marjanovic, H. Schlarb
    DESY, Hamburg, Germany
 
  The rapid development in the field of digitizers is leading to Analog-to-Digital Converters (ADC) with ever higher sampling rates. Nowadays many high-speed digitizers for RF applications and radio communication are available, which can sample broadband signals, without the need of down converters. These ADCs fit perfectly into beam instrumentation and diagnostic applications, e.g. Bunch Arrival time Monitor (BAM), klystron life-time management or continuous wave synchronization. To cover all these high-frequency diagnostic applications, DESY has developed a direct sampling FMC digitizer board based on a high-speed ADC with an analog input bandwidth of 2.7 GHz. A high-speed data acquisition system capable of acquiring 2 channels at 800 MSP/s will be presented. As first model application of the versatile digitizer board is the coarse bunch arrival time diagnostics in the free electron laser FLASH at DESY.  
slides icon Slides THOA02 [5.817 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2018-THOA02  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)