Author/Authors :
Funk، نويسنده , , P. S. P. Hermann، نويسنده , , G. and Hinton، نويسنده , , J. and Berge، نويسنده , , D. and Bernlِhr، نويسنده , , K. and Hofmann، نويسنده , , W. and Nayman، نويسنده , , P. and Toussenel، نويسنده , , Julian F. V. Vincent، نويسنده , , P.، نويسنده ,
Abstract :
H.E.S.S.—The High Energy Stereoscopic System—is a new system of large atmospheric Cherenkov telescopes for GeV/TeV γ-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 γ-rays. The implementation of the H.E.S.S. trigger system is presented along with data taken to characterise its performance.
