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Proceedings Paper

Status of the array control and data acquisition system for the Cherenkov Telescope Array
Author(s): Matthias Füßling; Igor Oya; Arnim Balzer; David Berge; Jerzy Borkowski; Vito Conforti; Josep Colomé; Rico Lindemann; Etienne Lyard; David Melkumyan; Michael Punch; Ullrich Schwanke; Joseph Schwarz; Claudio Tanci; Gino Tosti; Peter Wegner; Ralf Wischnewski; Amanda Weinstein
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Paper Abstract

The Cherenkov Telescope Array (CTA) will be the next-generation ground-based observatory using the atmospheric Cherenkov technique. The CTA instrument will allow researchers to explore the gamma-ray sky in the energy range from 20 GeV to 300 TeV. CTA will comprise two arrays of telescopes, one with about 100 telescopes in the Southern hemisphere and another smaller array of telescopes in the North. CTA poses novel challenges in the field of ground-based Cherenkov astronomy, due to the demands of operating an observatory composed of a large and distributed system with the needed robustness and reliability that characterize an observatory. The array control and data acquisition system of CTA (ACTL) provides the means to control, readout and monitor the telescopes and equipment of the CTA arrays. The ACTL system must be flexible and reliable enough to permit the simultaneous and automatic control of multiple sub-arrays of telescopes with a minimum effort of the personnel on-site. In addition, the system must be able to react to external factors such as changing weather conditions and loss of telescopes and, on short timescales, to incoming scientific alerts from time-critical transient phenomena. The ACTL system provides the means to time-stamp, readout, filter and store the scientific data at aggregated rates of a few GB/s. Monitoring information from tens of thousands of hardware elements need to be channeled to high performance database systems and will be used to identify potential problems in the instrumentation. This contribution provides an overview of the ACTL system and a status report of the ACTL project within CTA.

Paper Details

Date Published: 8 August 2016
PDF: 12 pages
Proc. SPIE 9913, Software and Cyberinfrastructure for Astronomy IV, 99133C (8 August 2016); doi: 10.1117/12.2233174
Show Author Affiliations
Matthias Füßling, Deutsches Elektronen-Synchrotron (Germany)
Igor Oya, Deutsches Elektronen-Synchrotron (Germany)
Arnim Balzer, Univ. van Amsterdam (Netherlands)
David Berge, Univ. van Amsterdam (Netherlands)
Jerzy Borkowski, Nicolaus Copernicus Astronomical Ctr. (Poland)
Vito Conforti, INAF - IASF Bologna (Italy)
Josep Colomé, Institut d'Estudis Espacials de Catalunya (Spain)
Rico Lindemann, Deutsches Elektronen-Synchrotron (Germany)
Etienne Lyard, Univ. of Geneva (Switzerland)
David Melkumyan, Deutsches Elektronen-Synchrotron (Germany)
Michael Punch, Univ. Paris 7-Denis Diderot (France)
Ullrich Schwanke, Humboldt-Univ. zu Berlin (Germany)
Joseph Schwarz, INAF - Osservatorio Astronomico di Brera (Italy)
Claudio Tanci, Univ. of Perugia (Italy)
Gino Tosti, Univ. of Perugia (Italy)
Peter Wegner, Deutsches Elektronen-Synchrotron (Germany)
Ralf Wischnewski, Deutsches Elektronen-Synchrotron (Germany)
Amanda Weinstein, Iowa State Univ. (United States)

Published in SPIE Proceedings Vol. 9913:
Software and Cyberinfrastructure for Astronomy IV
Gianluca Chiozzi; Juan C. Guzman, Editor(s)

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