The Large Aperture GRB Observatory (LAGO)
LAGO is an international project from more than 80 scientists of 8 latinamerican countries started in 2005 (complete list of the collaboration members and their institutions). The LAGO project aims at observing Gamma Ray Bursts (GRBs) by the single particle technique using water Cherenkov detectors (WCD). It consists of various sites at high altitude, in order to reach a good sensitivity to the faint signal expected from the high energy photons from GRBs.
CORSIKA (COsmic Ray SImulations for KAscade) is a program for detailed simulation of extensive air showers initiated by high energy cosmic ray particles. Protons, light nuclei up to iron, photons, and many other particles may be treated as primaries.