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The Trigger System of the H.E.S.S. Telescope Array

S. Funk·G. Hermann·J. Hinton·D. Berge·K. Bernloehr·W. Hofmann·P. Nayman·F. Toussenel·P. Vincent
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Abstract

H.E.S.S. -- The High Energy Stereoscopic System-- is a new system of large atmospheric Cherenkov telescopes for GeV/TeV Gamma-ray astronomy. This paper describes the trigger system of H.E.S.S. with emphasis on the multi-telescope array level trigger. The system trigger requires the simultaneous detection of air-showers by several telescopes at the hardware level. This requirement allows a suppression of background events which in turn leads to a lower system energy threshold for the detection of Gamma-rays. The implementation of the H.E.S.S. trigger system is presented along with data taken to characterise its performance.

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S. Funk, G. Hermann, J. Hinton, D. Berge, K. Bernloehr, W. Hofmann, P. Nayman, F. Toussenel, P. Vincent. 2004-08-20. The Trigger System of the H.E.S.S. Telescope Array. https://doi.org/10.1016/j.astropartphys.2004.08.001

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