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Single-shot longitudinal beam profile and terahertz diagnostics at MHz- Towards GHz-rates with high-throughput electronics

Caselle, M.; Rota, L.; Balzer, M.; Brosi, M.; Funkner, S.; Kehrer, B.; Nasse, M. J.; Niehues, G.; Patil, M.; Schönfeldt, P.; Schuh, M.; Steinmann, J. L.; Yan, M.; Bründermann, E.; Weber, M.; Müller, A.-S.; Borghi, G.; Boscardin, M.; Ronchin, S.

Abstract:
Accelerators with high bunch-repetition rates mandate high-throughput detector electronics to diagnose each individual bunch. KALYPSO with a 256-pixel detector line-array integrated in an fs laser-based electro-optical set-up allows longitudinal bunch profiling with sub-ps resolution as demonstrated at the storage ring ANKA for single-bunch mode operation at 2.7 MHz and also at the Eu-XFEL with a 4.5-MHz micro-bunch train. Improvements will enhance fs-time accuracy, reduce noise, and increase frame-rate. A custom front-end with an application-specific integrated circuit (ASIC) has been developed to operate with 10-MHz frame-rates at low noise. Several linear arrays with up to 1024 pixel and smaller pixel pitch were submitted for production. The development of a low-gain avalanche diode (LGAD) sensor will further improve the time resolution. Detector data is transmitted in the DAQ framework to external GPU-based clusters and processed in real-time at 7 Gbytes/s with a few μs latency. For beam dynamics studies we also develop KAPTURE capable to analyze terahertz detector pulses at GHz-repetition rates. These developments open new windows in beam diagnostics of modern accelerators.

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Verlagsausgabe §
DOI: 10.5445/IR/1000098675
Veröffentlicht am 09.10.2019
Originalveröffentlichung
DOI: 10.18429/JACoW-IBIC2017-TU2AB3
Coverbild
Zugehörige Institution(en) am KIT Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Institut für Beschleunigerphysik und Technologie (IBPT)
Publikationstyp Proceedingsbeitrag
Jahr 2018
Sprache Englisch
Identifikator ISBN: 978-3-9545019-2-2
KITopen-ID: 1000098675
HGF-Programm 54.02.02 (POF III, LK 01)
Erschienen in IBIC 2017- International Beam Instrumentation Conference : 20-24 August 2017, Grand Rapids, Michigan, Amway Grand Plaza Hotel / hosted by Facility for Rare Isotope Beams. Ed.: E. Akers
Veranstaltung 6th International Beam Instrumentation Conference (IBIC 2017), Grand Rapids, MI, USA, 20.08.2017 – 24.08.2017
Verlag Joint Accelerator Conferences Website (JACoW), Genf
Seiten 136-140
Nachgewiesen in Scopus
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