München 2019 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 15: Poster session
AKBP 15.16: Poster
Donnerstag, 21. März 2019, 16:30–18:00, Durchgangshalle
Towards FPGA-based High Speed Data Acquisition and Online Analysis at MHz repetition rates — •Mohammed Bawatna1, Sergey Kovalev1, Michele Caselle2, Bertram Green1, and Michael Gensch1 — 1IRP-HZDR,Dresden,Germany — 2IPE-KIT, Karlsruhe, Germany
Accelerator-based light sources, in particular, those based on linear accelerators, are intrinsically less stable than lasers or other more conventional light sources because of their large scale. In order to achieve optimal data quality, the properties of each light pulse need to be detected and implemented in the analysis of each respective experiment. Such schemes are of particular advantage in 4th generation light sources based on superconducting radiofrequency (SRF) technology, since here the combination of pulse-resolved detection schemes with high-repetition-rate is particularly fruitful [1,2,3]. In this contribution, we will outline how the pulse-resolved data acquisition scheme of the TELBE user facility shall be upgraded based on FPGA technology so that it allows operation at MHz repetition rates, subfemtosecond timing precision, online analysis of the measured data at MHz repetition rate, and will decrease the amount of data throughput and the required disk capacity for storing the data by orders of magnitude. Implementation of several novel purpose-built CMOS line array detector [4] will enable to perform arrival-time measurements at MHz repetition rates. [1] S. Kovalev et al., Struct. Dyn. 4, 024301 (2017). [2] B. Green et al., Sci. Rep. 6, 22256 (2016). [3] H. Hafez et al., Nature 561, 507 (2018). [4] L. Rota et al., Proceedings of IBIC2016, WEPG46 (2016).