Water Cherenkov Detectors response to a Gamma Ray Burst in the Large Aperture GRB Observatory

A. DE CASTRO; FOR THE LAGO COLLABORATION; X. BERTOU

Conferencia; 31st International Cosmic Ray Conference; 2009

In order to characterise the behaviour of Water Cherenkov Detectors (WCD) under a sudden increase of 1 GeV - 1 TeV background photons from a Gamma Ray Burst (GRB), simulations were con- ducted and compared to data acquired by the WCD of the Large Aperture GRB Observatory (LAGO). The LAGO operates arrays of WCD at high altitude to detect GRBs using the single particle technique. The LAGO sensitivity to GRBs is derived from the reported simulations of the gamma initiated particle showers in the atmosphere and the WCD response to secondaries.