The Surface Detector Trigger for the Auger Observatory

Details The Surface Detector Trigger for the Auger Observatory The Surface Detector Trigger for the Auger Observatory

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....2..805s&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The Pierre Auger Observatory surface array will contain 1600 surface detector stations distributed over 3000 km2 . The large area covered, the limited power budget necessitated by solar power operation, the restricted data bandwidth available through the stations' wireless network connections, and the temperature extremes inherent in an uncontrolled environment, impose special constraints on surface detector trigger system. Several approaches to the implementation of the first level trigger were pursued during the engineering phase of the project in the lab and in the field. In this paper we discuss the solution, based up on industrial grade Altera ACEX r series programmable logic devices, which was chosen for the final design. Trigger algorithms, integration with other asp ects of the station electronics, and performance will be described.

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