An integrated trigger system for the PIERRE AUGER fluorescence detector

Author

Gemmeke, Hartmut ; Klinger, Volkhard ; Tchemiakhovski, D.

Author_Institution

Forschungszentrum Karlsruhe, Germany

fYear

1997

fDate

9-15 Nov 1997

Firstpage

71

Abstract

The PIERRE AUGER fluorescence detector is designed to monitor extensive air showers of energies greater than 10¹⁹ eV. We present a hierarchical trigger-system with hardware and software components for efficient data reduction and event recognition. The first-level trigger uses configurable hardware to allow a flexible and very effective background suppression, in minimum a factor 2·10 ³ larger than conventional approaches as used in the HiRes experiment. It is designed with the hardware description language VHDL and synthesized in one FPGA with about 75000 gates. Due to the excellent noise suppression in the first-level trigger, a software based solution on a digital signal processor is sufficient for the second- and third-level trigger

Keywords

cosmic ray apparatus; cosmic ray showers; data reduction; fluorescence; signal processing; trigger circuits; EAS; PIERRE AUGER fluorescence detector; background suppression; data reduction; digital signal processor; event recognition; extensive air showers monitoring; first-level trigger; hierarchical trigger-system; integrated trigger system; software based solution; Buffer storage; Detectors; Digital signal processors; Event detection; Field programmable gate arrays; Fluorescence; Hardware; Mirrors; Noise level; Random access memory;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1997. IEEE

Conference_Location

Albuquerque, NM

ISSN

1082-3654

Print_ISBN

0-7803-4258-5

Type

conf

DOI

10.1109/NSSMIC.1997.672511

Filename

672511