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Szadkowski, Z.; Nitz, D.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 06/2005, Letnik: 545, Številka: 3Journal Article
The Pierre Auger Observatory studies ultra-high energy cosmic rays in the range of 10 18 eV up to the highest energies. The apparatus reaches full sensitivity above 10 19 ev . The southern hemisphere site is currently under construction. When completed, the surface array at this site will contain 1600 water Cherenkov detector stations distributed over 3000 km 2 . Prior to proceeding with full-scale construction, a prototype “Engineering Array”, consisting of 40 detector stations was tested. This paper describes the implementation of the first level surface detector trigger used in the engineering array.
