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TY - CONF AU - Gessner, S.J. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - The FACET-II Data Acquisition System J2 - Proc. of IBIC2021, Pohang, Rep. of Korea, 24-28 May 2021 CY - Pohang, Rep. of Korea T2 - International Beam Instrumentation Conference T3 - 10 LA - english AB - The Facility for Advanced Accelerator Experimental Tests (FACET) at SLAC utilizes over 80 digital cameras to monitor and diagnose particle beams and laser systems. The cameras are part of the EPICS control system and run on areaDetector IOCs. Experiments at FACET acquire data from multiple cameras simultaneously. This presents a challenge because the data rate easily exceeds 10 Gbps for multiple cameras operating at 10-30 Hz, thus preventing data acquisition via Channel Access. Our system avoids this problem by writing the images to a local shared hard drive. Critically, we make use of the SLAC EVG-EVR timing system to coordinate image acquisition and ensure synchronicity across multiple cameras. The image acquisition features are combined with SLAC’s Beam Synchronous Acquisition (BSA) features for a unified data acquisition framework. PB - JACoW Publishing CP - Geneva, Switzerland SP - 446 EP - 448 KW - controls KW - network KW - experiment KW - EPICS KW - GUI DA - 2021/10 PY - 2021 SN - 2673-5350 SN - 978-3-95450-230-1 DO - doi:10.18429/JACoW-IBIC2021-WEPP33 UR - https://jacow.org/ibic2021/papers/wepp33.pdf ER -